Pilot-Operated Regulating Valves

Regulating Valves www.watsonmcdaniel.com 42 Jones oulevard Limerick Airport usiness enter Pottstown PA 19464 Tel: 6-495-5131 199

HD Regulating Valve & Pilots Main Valve & Pilots Table of ontents Most ommon HD Pilots PP & PP5 PRESSURE Spring-Loaded PT TEMPERATURE Liquid Filled PA PRESSURE Air-Loaded PS On/Off (Solenoid) HD Main Valve is used in conjunction with the appropriate Pilot(s) to control Steam or Process Temperature HD Main Valve Ductile Iron HD Regulator with PP-PRESSURE Pilot (See Page 2) HD Regulator with PT-TEMPERATURE Pilot (See Page 214) HD Regulator with PA-Air Loaded PRESSURE Pilot (See Page 21) 0 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 HD Regulator with PP-PRESSURE Pilot & PT-TEMPERATURE Pilot (See Page 214) HD Regulator with PTRP- TEMPERATURE Pilot (See Page 222)

HD Regulating Valve & Pilots Table of ontents Other HD Pilots PP AK PRESSURE PDP DIFFERENTIAL PRESSURE Page No. HD Series Regulating Valves - Introduction 2-7 Main Valve for HD Ductile Iron -9 Pilots for HD 2-230 PP & PP5- Pilots Spring-loaded pressure pilots for general service steam pressure reducing. 2 PP-ack Pilot For controlling upstream pressure of the HD Regulator. 2 PT-Temperature Pilot General purpose liquid-filled temperature pilot used when heating liquids to a desired temperature. 214 PA- Pilot Air-loaded Pilot can be used instead of spring-loaded PP pilots for pressure regulation in remote installations. Also used in conjuction with PTR & PTL temperature controllers. 21 PS-Solenoid Pilot Solenoid Pilot can be used in conjunction with any of the listed pilots for electrical on/off control of HD. 222 PTRP Temperature Pilot Special purpose vapor tension temperature pilot for increased sensitivity and reduced reaction time when controlling temperature of liquids and air. 224 PTR & PTL Temperature ontrollers These temperature controllers have a wider temperature span than the PT temperature pilot. They are used in conjunction with the PA-Air Pilot to deliver an air signal to the HD valve. 22 PDP-Pilot Differential Pilot with two separate sensing ports for maintaining differential pressure between steam and an alternate medium. 230 (Air-Loaded) Noise Attenuators for HD & HSP : Reduces noise in pressure reducing applications 236 apacity harts for HD & HSP 240 HSP Series ast Steel PTR & PTL TEMPERATURE ontrollers PTRP TEMPERATURE 231 The Watson McDaniel HSP Regulating Valve is constructed of ast arbon Steel for higher pressure and temperature ratings when compared to ductile iron. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 1

HD Regulating Valve Introduction The HD-Series are used on steam applications for pressure reduction or controlling product temperature (when steam is used in heating applications). The Pilot-operated regulators are more accurate and available in higher capacity than Direct-Operated regulators. The HD Series regulators use a pilot valve (several types and styles including, Temperature, ON-OFF solenoid, etc) to control the operation of the Main Valve. The HD series has a Ductile Iron ody; Pilot and Main-Valve are selected separately. The HSP Regulator has a ast arbon Steel body; available with pressure pilot only. 2) Select HD Pilot(s) The HD Series Regulating Valves are used for controlling pressure and temperature in industrial and HVA steam applications. 1) Select HD Main Valve For ontrol HD Main Valve with PP Pilot Model: PP For Temperature ontrol HD Main Valve with PT Temperature Pilot Model: PT Model: PT For ombination & Temperature ontrol Typical Applications 2 Regulating Temperature Regulating -Temperature ontrol ack ontrol Differential ontrol Model: PP HD Main Valve with PT Pilot & PP Temperature Pilot ombination Pilots The HD-Series Steam regulating valve can be used with up to three pilots simultaneously to control the operation of the valve. An example is when steam is used to heat water in a Heat Exchanger. The Temperature Pilot will maintain precise control of outlet water temperature by controlling the amount of steam flow through the valve while a Pilot limits the maximum outlet steam pressure of the regulator to the Heat exchanger. A third pilot (Solenoid pilot) can be added to electrically activate or de-activate the system. www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

HD Regulating Valve Introduction Typical Applications HD Main Valve with PP- Pilot Reducing ontrolling Temperature with When steam is used on heating applications, several choices of pilots are available. The PT pilot (most common) is referred to as a solid liquid fill and contains a temperature probe connected by a length of capillary tubing to a bellows in the pilot valve. When the temperature bulb is heated the liquid inside the probe expands the bellows and closes off the pilot valve. PTRP pilot operates in a similar fashion except this style is referred to as a vapor tension unit. The PTL temperature controller uses a bi-metal element to sense temperature and deliver an appropriate air signal to a PA air pilot that controls the operation of the HD main valve. PT-Temperature Pilot HD Main Valve with PP- Pilot and PT-Temperature Pilot steam inlet HD Main Valve hot water storage tank PT Temperature Pilot temp probe heat exchanger steam inlet ontrolling Temperature & Limiting to a Maximum Value The PT & PP Pilot combination is used when it s required to control temperature while limiting downstream pressure to a maximum value. When the PT & PP Pilot combination is used, the downstream pressure is limited to a maximum setting by the pressure pilot, while the temperature pilot maintains the correct temperature of the process. reduced outlet pressure HD Main Valve inlet pressure HD Main Valve PP Pilot Several choices of pilot valves can be used for pressure reduction on steam applications. The opening of the pressure pilot controls the operation of the Main Valve. The PP & PP5 are referred to as spring loaded pressure pilots because an adjustable control spring is used to apply the opening force to the pilot valve. adjustment screw is located on top of pressure pilot. The PA pilot is referred to as an Air Loaded pressure pilot because Air is used to apply the opening force to the pilot valve. The PA pilot allows for convenient and remote adjustment of steam pressure using a small air regulator. HD Main Valve Pilot Temperature Pilot reduced outlet pressure inlet pressure heat exchanger steam inlet temp probe hot water outlet cold water inlet Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 3

HD Regulating Valve Introduction HD Main Valve (shown with Pilot) Ductile Iron ody Top & bottom Guided Stem Pilot Ductile Iron ody Right or Left Pilot Mounting Available Hardened SS (55 Rc) Seat & Disk (Non-standard left-mounted shown) Pilot Adapter Full Port Pilot Strainer with built-in lowdown Valve OUTLET ronze Stem guide High Tensile Diaphragm Additional Test Port for field diagnostics Main Valve Spring (protected from steam) Features of the HD Regulating Valve No external power source is required. & temperature pilots can be used in combination, eliminating the need for a separate pressure and temperature regulator. Ductile iron body for higher pressure ranges and increased safety when compared to cast iron. Full port strainer and blowdown valve on pilot adapter for Hardened stainless steel trim (55 Rc) for extended life even in the most demanding applications. The innovative design allows the pilot to be mounted on either side of the regulator and is easily field-reversible without having to rebend tubing. Tubing and pilot adapter is pre-mounted on main valve. The control pilot requires only four bolts to complete the installation. ultimate protection against dirt and scale. 4 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

HD Regulating Valve Introduction PA PRESSURE Pilot Air-Loaded PT TEMPERATURE Pilot Liquid Filled PP AK PRESSURE Pilot PS ON/OFF (Solenoid) PTRP TEMPERATURE Pilot Vapor Tension PDP DIFFERENTIAL PRESSURE Pilot The HD Series Regulating Valve was designed for extremely accurate control of temperature and pressure in steam service applications. The HD-Series is made of Ductile Iron for extended pressure and temperature ratings when compared to cast iron. Several different control pilots can be mounted to the valve to control pressure, temperature, or a combination of both. When two or more pilots are used together (both a pressure and a temperature pilot) an additional pilot adapter for the second pilot is required (must indicate when ordering). The most common pilots are the PP-Pilot for pressure reducing, and the PT-Pilot for temperature control. The Standard Main Valve is used for an inlet steam pressure range of 15-300 PSI. The Low-pressure Main Valve contains a different main valve spring and is available for an inlet pressure range of 5 - PSI. The Main Valve and Pilot are purchased separately. ontrol ack When controlling pressure, there are several options you can use for a pilot. The PP-Pilot and the PP5-Pilot are both springadjusted pressure pilots. The PP-Pilot is used on general-purpose pressure reducing applications and the PP5-Pilot is used when higher accuracy is required. The PA-Pilot is air controlled and allows for easier and remote adjustment of steam pressure. When controlling the back pressure in a steam system, the P-Pilot is used in conjunction with the HD-Series Regulator. This controls the pressure on the upstream side of the regulator. Temperature ontrol Several choices of pilot valves can be used for temperature control when steam is used on heating applications. The PT style pilot (most common) is referred to as a solid liquid fill and contains a temperature probe connected by a length of capillary tubing to a bellows in the pilot valve. When the temperature bulb is heated the liquid inside the probe expands the bellows and closes off the pilot valve. PTRP pilot operates in a similar fashion except this style is referred to as a vapor tension unit. The PTL temperature controller uses a bi-metal element to sense temperature and deliver an appropriate air signal to a PA air pilot that controls the operation of the HD main valve. Temperature- ontrol The PP & PT-Pilot combination is used when it is desirable to control both the pressure and temperature of a system with only one regulating valve. The unique features of this modular valve allow this to be accomplished quite easily. When the PP & PT-Pilot combination is used, the downstream pressure is limited to a maximum setting by the pressure pilot, while the temperature pilot maintains the correct temperature. On-Off Operation Electrical On-off control of the regulator is possible by using the PS-Solenoid Pilot. The PS-Pilot allows the regulator to be shut off or turned on electrically. Normally the regulator is equipped with either a PP- Pilot or PT-Temperature Pilot in addition to the PS-Solenoid Pilot. Typical onfigurations PP & PP5 PRESSURE Pilot Spring-Loaded Differential The PDP-Pilot is used when trying to balance two different media sources that are being blended. Stainless Diaphragm Option The HD regulator is supplied standard with a high tensile strength Phosphor ronze diaphragm which has been determined thru experience and testing to be the absolute best diaphragm material choice for steam applications. Stainless Steel diaphragms are offered as an option because certain industry specifications have been written requiring stainless steel. Note: Stainless steel is prone to work hardening and will not last as long as phosphor bronze; only use if required by the specification to do so. Stainless Tubing Option opper tubing is supplied as standard. opper tubing offers excellent corrosion resistance and is easy to bend and manipulate and normally outlasts the life span of the valve. Stainless Steel tubing is offered as an option. Reduced port trim Option: should be sized to meet the application not to fit the pipe size. Over sizing a regulator may cause overshoot which leads to erratic pressure or temperature control often referred to as hunting. A valve with reduced port trim has a reduced seat and disc size for a given pipe size, (refer to capacity charts). Low pressure (differential and inlet) Option: require a minimum Inlet pressure as well as a minimum pressure drop across the valve to operate properly. The HD Standard Main valve requires a minimum inlet pressure of 15 PSIG and minimum differential pressure of PSI. The Low Main valve requires 5 PSIG minimum inlet pressure and 3 PSI minimum differential pressure. Low pressure main valve uses a EPDM diaphragm. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 5

HD Regulating Valve HD Regulator & Pilot ombinations HD Main Valve with PP- Pilot Spring-Loaded Shown with PP control Pilot. Spring-loaded pressure pilots are the most typical method of controlling downstream pressure in Steam Systems. Adjustment screw on top of pilot controls downstream steam pressure. HD Main Valve with PT-Temperature Pilot Shown with Temperature control Pilot: The PT Temperature Pilot will control the flow of steam flowing through the HD valve based on the temperature of the sensing bulb. The liquid-filled sensing ulb is available in standard ft and 15 ft capillary lengths. Other lengths available. HD Main Valve with PA- Pilot Air-Loaded Shown with Air-loaded pressure control pilot. Air-loaded pressure pilots are used to reduce and control pressure in steam systems. They are used as an alternative to the more common spring-loaded pilot. The PA Air-loaded pressure pilot allows for remote adjustment of the valve using a small air regulator to alter the air pressure to the top of the pilot. HD Main Valve with PS On/Off ontrol Solenoid Pilot 6 Shown with PS ON-OFF(solenoid Pilot) control pilot: The PS ON-OFF (solenoid) Pilot allows for the HD valve to be opened and closed using an electrical switch to activate a small solenoid valve. The PS Pilot can be used for system automation or as a safety shut down device. The ON-OFF pilot is most often used in conjunction with a or Temperature control pilot. www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

HD Regulating Valve HD Regulator & Pilot ombinations HD Main Valve with PT-Temperature Pilot PP- Pilot The PT Temperature Pilot will maintain the proper flow of steam through the main valve to keep the process it s controlling at the proper temperature. The PP pressure Pilot will LIMIT the downstream pressure to a maximum value. This combination of Pilots is very convenient when the Steam in the supply line is greater than the maximum pressure allowed to the process heat exchanger. This eliminates using a separate reducing valve prior to the temperature control valve. HD Main Valve NOTE: When two or more pilots are used on the same valve: An additional Pilot Adapter for Second Pilot is required: Use part number: ADAPTER with PP- Pilot PS1 On/Off ontrol Solenoid Pilot The PP Pilot will maintain the desired downstream set pressure as long as the PS ON-OFF (solenoid) Pilot is in the ON position. Available in either Normally-ON or Normally-OFF configuration; an electrical signal turns valve OFF or ON. HD Main Valve with PT-Temperature Pilot PS1 On/Off ontrol Solenoid Pilot The PT Temperature Pilot will maintain the proper flow of steam through the main valve to keep the process it s controlling at the proper temperature as long as the PS ON-OFF (solenoid) Pilot is in the ON position. Available in either Normally-ON or Normally-OFF configuration; an electrical signal turns valve OFF or ON. HD Main Valve with PP- Pilot PT-Temperature Pilot PS1 On/Off ontrol Solenoid Pilot The PT Temperature Pilot will maintain the proper flow of steam through the main valve to keep the process it s controlling at the proper temperature as long as the PS ON-OFF (solenoid) Pilot is in the ON position. The PP Pilot will LIMIT the downstream pressure to a maximum value. NOTE: When two or more pilots are used on the same valve: An additional Pilot Adapter for Second Pilot is required: Use part number: ADAPTER Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 7

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Regulating Valves HD Series HD Main Valve Ductile Iron A FLG HD-Series DIMENSIONS A FLOW 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ 33/ 33/ 31/2 47/ 47/ 53/ 53/4 63/4 71/2 D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 143/4 193/4 Weight (lbs) 1# 300# 1 1 23 40 45 43 43 55 60 65 75 5 0 5 130 145 215 235 4 470 (A) Face-To-Face 1# 300# 43/ 43/ 53/ 51/2 6 61/2 71/4 67/ 73/ 71/2 1/2 9 93/ 3/4 117/ 1/2 151/ 16 Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 inches Option: Stainless diaphragms and external tubing - consult factory Standard pilot mounting is on the right side of the regulator when looking into the outlet port (as shown). Pilot mounting on HD regulators are field-reversible. D M AT E R I A L S ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm OPERATING PRESSURES Inlet Range: (for Main Valve): 15 PSIG (Standard Main Valve) 5 PSIG (Low- Main Valve) Minimum Differential (for Main Valve):* PSI (Standard Main Valve) 3 PSI (Low- Main Valve) * Not required for Temperature Pilot applications Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55Rc) Hardened SST (55Rc) Phosphor ronze (standard) EPDM (Low Main Valve) Ordering Instructions: HD Series Regulator with a Pilot Model ode for Main Valve: Model ode for Pilot: HD-19-F1 PP- HD Valve with Pilot HD Series Valve with 3 1# Flanges Pilot, -0 PSIG (lue spring color) HD Valve with Temperature Pilot HD Valve with & Temperature Pilots * If 2 Pilots are used on the same valve, a Secondary Pilot Adapter is required. Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PP- ( Pilot with -0 PSIG Range) Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PTU-14- (Temperature Pilot (0-160 F) with Ft. apillary) Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PP- ( Pilot with -0 PSIG Range) Model ode for Pilot: PTU-14- (Temperature Pilot (0-160 F) with Ft. apillary) Model ode for Secondary Pilot Adapter*: ADAPTER Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 9

Pilots for HD Regulating Valves PP & PP5 Pilots HD Series Regulating with PP & PP5 Spring-loaded Pilot Pilot (Standard: 1.0 psig accuracy) (High-accuracy: 0.5 psig accuracy) Pilot ody Material Max Inlet Reduced Outlet Range Inlet Range PP PP5 ast Steel 300 PSIG 3-0 PSIG 15-300 PSIG 5- PSIG (with HD Standard main valve) (with HD Low- (LP) main valve) Minimum Differential PSI 3 PSI (with HD Standard main valve) (with HD Low- (LP) main valve) Typical Applications Options The PP & PP5 Pilots are used with the HD Regulator to control steam pressure in steam mains or for process equipment. Pilot-operated regulators maintain constant downstream pressure even when the inlet pressure to the valve fluctuates or steam usage varies. The PP- Pilot is adequate for controlling pressure in most industrial applications. For increased accuracy use the PP5 Pilot. pilot can be used with temperature pilot to eliminate the need for two separate regulators Solenoid pilot can be added for remote on/off control of regulator Example: PP- Pilot at -0 PSIG Reduced Range PSI PP- Pilot (Standard) 1.0 PSIG accuracy PP5- Pilot (Special Applications) 0.5 PSIG accuracy Model ode Spring olor Weight lbs PP- Pilot (for Standard Industrial Applications) 1.0 PSIG accuracy Features 3-25 -0 0-0 The PP-Pilot can maintain downstream pressure to ±1 PSIG PP5-Pilot can maintain downstream pressure to ±0.5 PSIG hoices of three overlapping pressure ranges Pilot is easily installed on pilot adapter using four bolts, PP-Y PP- PP-R Yellow lue Red PP5- Pilot (Special Applications) 0.5 PSIG accuracy 1- -25 no tubing connections are required Full port strainer and blowdown valve on pilot adapter for protection of pilot from dirt and scale Solid floating diaphragm is more failure resistant Watson McDaniel's pilots can be used with other manufacturers regulators PP5-Y* PP5-* Yellow lue 25 25 * A Spacer (model # AP-SPAE) is required when using PP5 Pilots on a 3 & 4 HD Main Valve. Units: inches HD Main Valve MATERIALS for PP Pilot with PP Pilot ody PP5 Pilot ody Head & Seat Gasket Diaphragm Head & Seat Assembly PP- Pilot MATERIALS for HD Main Valve Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PP- ( Pilot with -0 PSIG Range) 2 ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm Adjusting Screw Wb 216 ast Steel ast Iron 302 SS Phosphor ronze Hardened SST (55 Rc) Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55 Rc) Hardened SST (55 Rc) Phosphor ronze www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Adjusting Spring Sensing Line onnection 1/4 91/2 5 PP PP5

Pilots for HD Regulating Valves PP & PP5 Pilots HD Series Regulating with PP & PP5 Spring-loaded Pilot Reducing reduced outlet pressure HD Main Valve inlet pressure The PP-Pilot and the PP5-Pilot are both spring-adjusted pressure pilots. The PP-Pilot is used on typical generalpurpose pressure reducing applications. The PP5-Pilot is used when higher accuracy is required and is capable of maintaining a control pressure window of less than 1 PSI. PP Pilot steam inlet Pilot Diaphragm Main Valve losed Downstream Sensing Line Adjustment Spring Pilot Diaphragm Pilot Valve Open Pilot Valve losed Pilot Valve Adjustment Screw Main Valve Open leed Orifice Low High Presssure Low High Presssure Opens Main Valve High- steam pushes up diaphragm & opens valve Diaphragm When pilot valve opens, steam flows to underside of diaphragm Pilot valve opens and closes depending on downsteam pressure (shown open) How it Works The Pilot controls the operation of the HD Regulator. The sensing line connects the pressure pilot to the downstream side of the regulator. in the sensing line applies an upward force to the pilot diaphragm to compress the adjustment spring. When system pressure equals set point, the diaphragm moves upwards against the force of the adjusting spring, closing pilot valve. When the pilot valve is shut, steam cannot pass thru to the underside of the regulator diaphragm, closing the regulator. When the steam pressure falls below its set point, the pilot valve opens allowing steam to lift the main valve diaphragm which opens up the regulating valve. D I M E N S I O N S H D - S e r i e s inches Standard PP-Pilot = 5 PP5-Pilot = Pilot Adapter Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 Face-To-Face 1# 300# 43/ 43/ 53/ 51/2 6 61/2 71/4 67/ 73/ 71/2 1/2 9 93/ 3/4 117/ 1/2 151/ 16 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ * 117/ 117/ 117/ 117/ 117/ 117/ 117/ 117/ 117/ 1/2 D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 143/4 193/4 E** 73/4 73/4 73/4 1/4 1/4 1/2 1/2 91/2 1/2 113/4 Weight 1 1 23 43 43 65 - (lbs) FLG 35 60 5 5 145 235 470 For sizes 1/2 to 11/2 add 21/2 to dimension; For sizes 2 to 6 add 5 to dimension. ** Add 11/2 to E dimension for all sizes. For PP5 Pilot: * E D Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 211

Pilots for HD Regulating Valves PP Pilots HD Series ack Regulating with PP ack- Pilot ack Pilot Pilot ody Material Max Inlet PP Ductile Iron 300 PSIG Reduced Outlet Range -0 PSIG Inlet Range 15-300 PSIG (when used with HD Standard main valve) Inlet Range 5- PSIG (when used with HD-LP Low- main valve) Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) Typical Applications The PP-ack Pilot, used with the HD regulator, maintains upstream pressure in steam systems. These regulators are commonly used to supply flash steam to low pressure mains. Features The PP-Pilot can maintain upstream pressure to ±1 PSIG hoices of three overlapping pressure ranges Pilot is easily installed using four bolts. No tubing Reduced Range PSI Model ode Spring olor Weight lbs -25 --0 0-0 PP-Y PP- PP-R Yellow lue Red connection required Full port strainer and blowdown valve on pilot adapter for protection of pilot from dirt and scale Solid floating (no penetration hole) pilot diaphragm resists failure Watson McDaniel's pilots can be used with other Adjusting Screw manufacturers regulators Option an be used with solenoid pilot for on/off control 9.5 O P E R AT I N G P R E S S U R E S Inlet Range: 15-300 PSIG (Standard Main Valve) 5- PSIG (Low Main Valve) Steam Sensing Line onnection 1/4 Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) 5.0 2 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

Pilots for HD Regulating Valves PP Pilots HD Series ack Regulating with PP ack- Pilot constant back pressure steam inlet steam outlet DIMENSIONS HD-Series 5 Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 Face-To-Face 1# 300# 43/ 43/ 53/ 51/2 6 61/2 71/4 67/ 73/ 71/2 1/2 9 93/ 3/4 117/ 1/2 151/ 16 The PP ack- Pilots are used with HD to maintain upstream pressures in steam systems. When the upstream pressure reaches the pilot set point, the regulator opens. The HD Regulator with a PP ack Pilot is commonly used to supply steam to low-pressure mains. The PP ack- Pilot maintains a constant back-pressure on the inlet side of the regulator. Should not be used in place of a safety relief valve. HD Main Valve PP Pilot ack inches Weight (lbs) 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ * 117/ 117/ 117/ 117/ 117/ 117/ 117/ 117/ 117/ 1/2 D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 143/4 193/4 E** 73/4 73/4 73/4 1/4 1/4 1/2 1/2 91/2 1/2 113/4 1 1 23 43 43 65 FLG 35 60 5 5 145 235 470 E D HD Main Valve with MATERIALS for PP ack- Pilot Pilot ody & over Head & Seat Gasket Diaphragm Head & Seat Assembly PP- Pilot ast Steel 302 SS Phosphor ronze Hardened SST (55 Rc) MATERIALS for HD Main Valve ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55 Rc) Hardened SST (55 Rc) Phosphor ronze Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PP- (ack- Pilot with -0 PSIG Range) Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 213

Pilots for HD Regulating Valves PT Pilots HD Series Temperature Regulating with PT Temperature Pilot Temperature Pilot Pilot ody Material Max Inlet Temperature ontrol Range Steam Inlet Range (Standard) PT Ductile Iron 300 PSIG 60-300 F Temperature ontrol Knob 15-300 PSIG (when Standard Temperature Pilot is used with HD Standard main valve) Steam Inlet Range (Low) 5- PSIG (when Low- Temperature Pilot is used with HD-LP Low- main valve) Sensing ulb Type PTUSW Typical Applications The PT-Temperature Pilots are used with the HD regulator to control temperature in various processes and systems. Some examples are: oil heaters, ovens, process heaters, vats, dryers and jacketed kettles. Thermostatic sensing bulb comes with standard -ft. or 15-ft. capillary lengths. Temperature adjustment is accomplished by rotating an adjustment knob to the desired temperature setting. LOW PRESSURE PT Pilot (pressures under 15 PSIG) Use ode LP: Low pressure Temperature Pilot is required for steam pressure under 15 PSI. (Range 5 - ) PILOT: Example Model ode: PTU---LP The HD Regulator can be used with both the PP- Pilot and PT-Temperature Pilot simultaneously to limit pressure and control temperature in process applications. LOW PRESSURE HD Main Valve (pressures under 15 PSIG) Use ode LP: A Low Main Valve must be used in conjuction with a Low Temperature Pilot for steam pressure under 15 PSIG Using both the temperature and pressure pilots on the same regulator eliminates the need for two separate regulators to control temperature and pressure. MAIN VALVE: Example Model ode: HD-13-N-LP (Range 5 - ) Temperature adjustment made simple and easy by rotating Options & Adders: ode LP - Low Pilot ode ft. apillary Length ode 25 25 ft. apillary Length Thermostatic sensing bulb comes with an -ft. or 15-ft. Example: PTU-29- (with standard ft capillary) is changed to ft of capillary. Model code becomes PTU-29- Features an adjustment knob to the desired temperature setting length capillary apillary is armor-protected to resist damage Overheat protection bellows is incorporated into sensing bulb; 0 F overheat protection up to 3 F Full port strainer and blowdown valve on pilot adapter for protection of pilot from dirt and scale For Temperature Pilot Temperature Ranges Options ode SSA *SS bulb, bushing & ft. armored capillary *Note: The standard sensing bulb is copper. A 316 SS ulb and bushing with ft. armoured capillary is available for corrosive applications or to meet SWDA requirements. Use code SSA Temperature Pilot can be combined with and Solenoid pilots apillary lengths up to 25-ft. maximum Thermowells* for isolating sensing bulb from process liquid are available in brass or 316 stainless steel Extended length wells available for increased insertion depth of sensing bulb 316 Stainless Steel Sensing ulb 60 0 1 160 0 240-1 F 160 F 10 F 2 F 260 F 300 F (16-49 ) (3-71 ) (49-2 ) (71-4 ) (93-7 ) (116-149 ) Model odels for Individual Thermowells for PT & PTU Pilots 214 Model ode Description of Thermowell WELL-TU-R WELL-TU-SS WELL-T-R-EXT WELL-T-SS-EXT rass Thermowell for PTU pilot Stainless steel Thermowell for PTU pilot Extended brass Thermowell for PT pilot Extended stainless steel Thermowell for PT pilot www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 * Thermowells: Wells isolate sensing bulb from the process liquid and are available in rass or Stainless Steel. When placed on the side of a tank or vessel, the sensing bulb can be removed without having to drain the process fluid.

Pilots for HD Regulating Valves PT Pilots HD Series Temperature Regulating with PT Temperature Pilot PT Pilots with Ft. apillary & Sensing ulbs ulb Type Temperature Range Pilot Model ode 60 F-1 F 0 F-160 F 1 F-10 F 160 F-2 F 0 F-260 F 240 F-300 F PT-- PT-14- PT-29- PT-30- PT-31- PT-32- PT 60 F-1 F 0 F-160 F 1 F-10 F 160 F-2 F 0 F-260 F 240 F-300 F PTU-- PTU-14- PTU-29- PTU-30- PTU-31- PTU-32- PTU 60 F-1 F 0 F-160 F PTUW 1 F-10 F rass 160 F-2 F Well 0 F-260 F 240 F-300 F PTUW-- PTUW-14- PTUW-29- PTUW-30- PTUW-31- PTUW-32- PTUW & PTUSW (PTU style copper sensing bulb with Thermowell) 60 F-1 F 0 F-160 F PTUSW 1 F-10 F SS 160 F-2 F Well 0 F-260 F 240 F-300 F PTUSW-- PTUSW-14- PTUSW-29- PTUSW-30- PTUSW-31- PTUSW-32- PT rass Well PTSW SS Well 60 F-1 F 0 F-160 F 1 F-10 F 160 F-2 F 0 F-260 F 240 F-300 F 1/2 5/ Plain copper sensing bulb that is directly immersed into the fluid. Normally the PT bulb type is lowered down vertically into the top of a tank or vat to a desired vertical insertion depth. PTW-- PTW-14- PTW-29- PTW-30- PTW-31- PTW-32- PTSW-- PTSW-14- PTSW-29- PTSW-30- PTSW-31- PTSW-32-51/2 5/ Union Hub (3/4 ) Union Nut opper sensing bulb with Union connection allowing it to be screwed into the side of a tank or pipe. The sensing bulb is in direct contact with the process fluid. Sensing bulb can be removed by unscrewing union nut (union hub remains in place). PTW 60 F-1 F 0 F-160 F 1 F-10 F 160 F-2 F 0 F-260 F 240 F-300 F Dimension (inches) PTU All Sensing ulbs are opper 6 1/ PTUW: rass Well 3/4 PTUSW: 316L SS Well Union Nut Union Hub (3/4 ) Isolation Well The Isolation Well, which isolates the copper sensing bulb from the process fluid, is available in either rass or 316L Stainless Steel. Sensing bulb can be removed by unscrewing union nut. Union Hub & Isolation Well remain in place which allows the removal of the sensing bulb without having to drain the tank. Stainless Steel Isolation Wells are used to protect the copper sensing bulb from corrosive fluids. rass wells have better heat transfer. PTW & PTSW (PT style copper sensing bulb with Extended Length Thermowell) 1 PTW: rass Well 3/4 PTSW: 316L SS Well Hub (3/4 ) Isolation Well For deeper & variable insertion depths into tanks or vats; up to 1 deep. The extended length Isolation Well isolates the copper sensing bulb from the liquid and allows the copper sensing bulb insertion depth to be adjusted to a depth of up to 1. They are available in either rass or 316L Stainless Steel. Isolation Well remains in place which allows the removal of the sensing bulb without having to drain the tank. Example Model odes: PT-14-15 PTUW-30- PTW-31--LP PT Plain Sensing ulb (no threaded connection), 0-160 F, 15 Ft. apillary Length PTUW Sensing ulb with Threaded Union onnection & rass Well, 160-2 F, Ft. apillary Length PTW Plain Sensing ulb with Extended rass Well, 0-260 F, Ft. apillary Length with Low Option Example Model: PTW-31--LP Model ode onfiguration for Temperature Pilot ulb Type PT PTU PTUW PTUSW PTW PTSW ode Temperature Range Plain Sensing ulb (no threaded connection) Sensing ulb with Threaded Union onnection Sensing ulb with Threaded Union onnection & rass Well Sensing ulb with Threaded Union onnection & 316L SS Well Plain Sensing ulb with Extended Length rass Well Plain Sensing ulb with Extended Length 316L SS Well 14 29 30 31 32 60 F 0 F 1 F 160 F 0 F 240 F - 1 F 160 F 10 F 2 F 260 F 300 F ode apillary Length ode 15 25 Feet 15 Feet Feet 25 Feet LP Low (required under 15 PSI) SSA SS bulb, bushing & armored capillary Options (Suffix) Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 215

Pilots for HD Regulating Valves PT Pilots HD Series Temperature Regulating with PT Temperature Pilot armour PT Pilot Dimensions capillary bellows Union Nut allows for removal of sensing bulb 6 3/4 Union Hub 3/4 threads into side of tank or pipe reference Sensing ulb chart pilot valve sensing bulb overheat protection bellows ontrolling Temperature of a large Tank of Water using PT-Temperature Pilot HD Main Valve with PT-Temperature Pilot HD Main Valve ontrolling Temperature PT-pilot is used for temperature control when steam is used on heating applications. The PT style pilot is a solid liquid fill design made up of a temperature probe connected by a length of capillary tubing to a bellows in the pilot valve. When the temperature bulb is heated the liquid inside the probe expands the bellows and closes off the pilot valve. The opening and closing of the pilot controls the flow of steam thru the main valve; which maintains system temperature. PT-pilot controls temperature through a range of 60-300 F. hot water storage tank PT Temperature Pilot heat exchanger sensing bulb steam An overheat protection bellows is incorporated into sensing bulb. ontrolling Temperature and Limiting using PT-Temperature Pilot & PP- Pilot HD Main Valve with HD Main Valve PP- Pilot PT-Temperature Pilot ontrolling Temperature & Limiting to a Maximum Value The PT & PP Pilots combination is used when it s required to control temperature while limiting downstream pressure to a maximum value. When the PT & PP Pilots combination is used, the downstream pressure is limited to a maximum setting by the pressure pilot, while the temperature pilot maintains the correct temperature of the process. This eliminates the need for a separate pressure reducing valve. Pilot reduced outlet pressure inlet pressure heat exchanger steam temp probe hot water outlet 216 Temperature Pilot www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 cold water inlet

Pilots for HD Regulating Valves PT Pilots HD Series Temperature Regulating with PT Temperature Pilot HD Valve HD Valve with with Temperature Pilot Temperature & Pilot F E G D D D I M E N S I O N S H D - S e r i e s inches Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 Face-To-Face 1# 300# 43/ 43/ 53/ 51/2 6 61/2 71/4 67/ 73/ 71/2 1/2 9 93/ 3/4 117/ 1/2 151/ 16 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ 91/4 91/4 91/4 91/4 91/4 91/4 91/4 91/4 91/4 93/4 For Pilot D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 61/2 193/4 E 61/2 61/2 1/4 71/4 71/4 71/2 73/4 1/2 91/2 3/4 F 141/2 141/2 141/2 141/2 141/2 141/2 141/2 141/2 141/2 15 G 1/4 1/4 1/4 3/4 3/4 111/4 111/4 13 141/4 Weight 1 1 23 43 43 65 HD Main Valve HD Main Valve with with PT-Temperature Pilot PP- Pilot PT-Temperature Pilot (lbs) FLG 35 60 5 5 145 235 470 Ranges Model 3-25 PSIG -0 PSIG 0-0 PSIG PP-Y PP- PP-R Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PP- Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PTU-14- (Temperature Pilot (0-160 F) with Ft. apillary) Model ode for Pilot: PTU-14- (Temperature Pilot (0-160 F) with Ft. apillary) MATERIALS for PT Temperature Pilot Pilot ody ellows Head & Seat Assembly Ductile Iron Phosphor ronze Hardened SST (55 Rc) MATERIALS for PP Pilot Pilot ody & over Head & Seat Gasket Diaphragm Head & Seat Assembly ( Pilot with -0 PSIG Range) Ductile Iron or ast Steel 302 SS Phosphor ronze Hardened SST (55 Rc) Model ode for Secondary Pilot Adapter*: ADAPTER * If 2 Pilots are used on the same valve, a Secondary Pilot Adapter is required. MATERIALS for HD Main Valve ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55 Rc) Hardened SST (55 Rc) Phosphor ronze Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 217

Pilots for HD Regulating Valves PA Series Pilots HD Series ontrol with PA Air-Loaded Pilot PA Ductile Iron 300 PSIG 3-0 PSIG 15-300 PSIG Pilot (Air) Pilot ody Material Max Inlet Reduced Outlet Range Inlet Range (when used with HD Standard main valve) 5- PSIG Inlet Range (when used with HD-LP Low- main valve) Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) Note: Temperature Range: 0-3 F when used with PTL & PTR temperature controllers MAXIMUM ONTROL AIR PRESSURE ON AIR PILOT IS 5 PSIG Typical Applications PRESSURE ADJUSTING RANGES The PA Air-Loaded Pilot is used with the HD Regulator to control steam pressure on steam mains and process equipment. The principal advantage the PA-Air Pilot has over standard spring-loaded pilots is that pressure adjustments to the regulator can be made from a remote location. A regulator that is located in a difficult to reach or inaccessible location can be adjusted by a remote control panel board. The PA-Air Pilot can also be used in conjunction with the PTL or PTR pneumatic temperature controllers for controlling temperature in process applications. How it Works When air pressure is applied to the upper chamber of the air pilot it exerts a downward force on the air pilot s diaphragm. This force controls the outlet pressure of the steam through the regulating valve. The control process is similar to a spring loaded pressure pilot except that the air pressure takes the place of the spring. There are three separate models of air pilots that make up the complete range depending on the steam pressure that needs to be controlled and the control air pressure available. See Adjusting Ranges chart. Model Ranges PA1 3-5 PSIG 1:1 ratio of steam pressure to control air pressure PA4 3-0 PSIG 4:1 ratio of steam pressure to control air pressure PA6-0 PSIG 6:1 ratio of steam pressure to control air pressure Description The larger Diaphragm area of the PA4 & PA6 Air Pilots allow the use of lower control air pressure to regulate higher pressure steam. Features adjustments to the regulator can be done from ontrol Air onnection 1/4 a remote location using an air signal Air-operated pilot ensures instant response and extremely accurate control Full port strainer and blowdown valve on pilot adapter for protection of pilot from dirt and scale ontrols pressure settings within ±1 PSIG D I M E N S I O N S inches Model PA1 PA4 PA6 21 A 51/4 51/4 51/4 5 Steam Sensing Line onnection 1/4 7 7/ 91/2 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 A

Pilots for HD Regulating Valves PA Series Pilots HD Series ontrol with PA Air-Loaded Pilot Reducing Station Using HD Regulator with an Air Pilot Air Signal (control air) PA Air Pilot inlet steam reduced outlet pressure inlet pressure Outlet Steam FLOW HD Regulator with PA Air Pilot Using Air-loaded Pilot Adjustment of outlet steam pressure can be done from a remote location from the valve by adjusting air pressure. onvenient if the regulator is not in an easily accessable area. Inlet Air Supply Model PL2 Remote ontrol Panel oard Description of Operation The PA-Air Pilot is being used in conjunction with the PL2 ontrol Panel oard to regulate steam pressure. A small air regulator on the panel board can be adjusted to control the air pressure to the pilot. One gauge on the panel board measures air line pressure to the panel board and the other gauge shows the air pressure being sent to the pilot. Steam pressure at the outlet of the regulator is controlled by the air pressure signal to the pilot. Depending on the air pilot model chosen (PA1, PA4, PA6), there will be a 1:1, 4:1, or 6:1 ratio of outlet steam pressure to air pressure. REMOTE ONTROL PANEL OARDS Three different options of remote control panel boards can be used along with the Air Pilots. Supply air is fed directly through the control panel board to the air pilot. You can choose one of the three options of control panel boards when using the air piloted regulators. Minimum of 5 PSIG air supply pressure is required. AIR SUPPLY AIR SIGNAL PL1 The PL1 is made up of an air pressure regulator with adjustment knob and pressure gauge that measures the amount of air pressure going to the pilot (air signal). Steam pressure of the system is controlled by adjusting the air pressure regulator. PL2 STEAM PRESSURE The PL2 is the same as the PL1 with the addition of an extra air pressure gauge for measuring the air supply pressure to the control panel board. AIR SIGNAL PL3 The PL3 is the same as the PL2 with the addition of a Steam Gauge for measuring steam pressure on the outlet side of the regulating valve. AIR SUPPLY AIR SIGNAL PL1 PL2 PL3 Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 219

Pilots for HD Regulating Valves PA Series Pilots HD Series ontrol with PA Air-Loaded Pilot How it Works When air pressure is applied to the upper chamber of the air pilot, it exerts a downward force on the air pilot s diaphragm. The lower chamber of the air pilot is connected to the outlet side of the regulator using a sensing line. The purpose of the sensing line is to sense the pressure on the outlet side of the regulator and direct it under the lower pilot diaphragm to push it upwards. When the intended set pressure is reached, the pilot valve closes, which then closes off the flow path of steam to the underside of the diaphragm chamber in the regulator body. The regulator modulates open and closed maintaining the desired downstream pressure. To change downstream pressure, increase or decrease air pressure to pilot accordingly. If outlet steam pressure falls below set point, pilot valve opens. Air determines outlet steam pressure Air pushes down on Upper Pilot Diaphragm Upper & Lower Pilot Diaphragms Downstream Sensing Line Pilot Valve losed Steam pushes upward on Lower Pilot Diaphragm Main Valve losed Pilot Valve Open Main Valve Open leed Orifice Low High Presssure High Presssure Low Steam Opens Main Valve Diaphragm When pilot valve closes, steam pressure in lower diaphragm chamber bleeds off allowing main valve to close High- steam pushes up diaphragm & opens valve MAXIMUM ONTROL AIR PRESSURE ON AIR PILOT IS 5 PSIG PRESSURE ADJUSTING RANGES Model Ranges PA1 3-5 PSIG 1:1 ratio of steam pressure to control air pressure PA4 3-0 PSIG 4:1 ratio of steam pressure to control air pressure PA6-0 PSIG 6:1 ratio of steam pressure to control air pressure Description The larger Diaphragm area of the PA4 & PA6 Air Pilots allow the use of lower control air pressure to regulate higher pressure steam. 2 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 When pilot valve opens, high pressure steam enters diaphragm chamber

Pilots for HD Regulating Valves PA Series Pilots HD Series ontrol with PA Air-Loaded Pilot D I M E N S I O N S H D - S e r i e s inches 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ * 71/2 71/2 71/2 71/2 71/2 71/2 71/2 71/2 71/2 1/4 D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 143/4 193/4 E** 73/4 73/4 73/4 3/ 3/ 3/4 3/4 91/2 1/2 113/4 Weight 1 1 23 43 43 65 (lbs) FLG 35 60 5 5 145 235 470 Face-To-Face 1# 300# 43/ 43/ 53/ 51/2 6 61/2 71/4 67/ 73/ 71/2 1/2 9 93/ 3/4 117/ 1/2 151/ 16 Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 * Add 21/2 to dimension for PA4 or PA6 Air Pilots on 2 thru 4 valves. ** Add 11/2 to E dimension for PA4, and 21/4 for PA6. E D MATERIALS for PA Pilot Ductile Iron 302 SS Steel, GR5 Hardened SST (55 Rc) Pilot ody & over Head & Seat Gasket over Screws Head & Seat Assembly MATERIALS for HD Main Valve ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55 Rc) Hardened SST (55 Rc) Phosphor ronze OPERATING PRESSURES Inlet Range: 15-300 PSIG (Standard Main Valve) 5- PSIG (Low Main Valve) Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) ONTROL AIR PRESSURE RANGE HD Main Valve with PA- Pilot Air-Loaded Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanges) Model ode for Pilot: PA4 (Air Pilot, 4:1 ratio of steam pressure to control air pressure) How to Size / Order PA - AIR PILOT Specify: Air Pilot PA1, PA4 or PA6 Remote ontrol Panel oard PL1, PL2 or PL3 REGULATOR ODY Specify: HD regulator body Regulator size or capacity and pressure range of steam required End connections (threaded, 1/300# flanged) A-Pilot ontrol : 3-5 PSIG (depending on pilot selected and desired outlet pressure) Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 221

Pilots for HD Regulating Valves Solenoid Pilot HD Series On/Off ontrol using an Electric Solenoid Max Inlet : PSIG PS1 & PS2 ast Iron Stainless Steel PSIG Solenoid Pilot (Electric) Pilot ody Material Valve Head & Seat Max Inlet Range PS1 PS2 0-10 PSIG 10- PSIG Typical Applications Standard Solenoid Pilots Available Typically used for automatic operation, remote control, programmed cycling, sequential function interlocks with other equipment, and emergency shut-off in case of power failure. Steam Inlet 0-10 PSIG 10- PSIG How it Works NEMA Ratings NEMA 4 Waterproof (standard) NEMA 7 Explosion-proof (optional) Voltage 24 Volts A 1-1 Volts A 2-240 Volts A ontrol Action Normally losed (standard) Normally Open (special ordered) The PS-Solenoid Pilot can be used in conjunction with, Temperature, or Air Pilots to electrically control on/off operation of the HD Regulator. When the solenoid pilot is used, the regulator can be turned on or off by electrically activating or de-activating the solenoid. Normally losed (N) Standard The normally LOSED Solenoid Pilot remains closed in the non-activated state. The regulating valve will remain closed until an electrical signal is sent to the solenoid pilot. The signal is required to allow the regulator to operate. This is known as a fail-safe condition. Normally Open (NO) Optional The normally OPENED Solenoid Pilot remains open in the non-activated state. The regulating valve will function normally unless an electrical signal is used to shut off the solenoid pilot. Features Available normally opened (NO) or normally closed (N) Full-port strainer and blow-down valve on pilot adapter to eliminate failure caused by contaminated steam systems Options Model ode PMO PSIG Weight lbs PS1 15-10 4.5 PS2 10-5.5 PS1-LP 0-4.5 Normally open solenoid NEMA Ratings: NEMA 4 and NEMA 7 Voltage: 24 VA, 1 VA, 240 VA Use PS1-LP for Low applications under 15 PSI. Model ode onfiguration hart Models PSI PS1 PS2 PS1-LP 15-10 PSIG 10- PSIG 0- PSIG ode Voltage 24 1 240 24 VA 1-1 VA 2-240 VA ode Action ode Rating N NO Normally losed (Standard) Normally Open (special ordered) N4 N7 Standard. Meets enclosure Type 4 (water proof). Meets NEMA 4 & 7 Rating (water proof & explosion proof) Example Model odes: 1) PS1-1-N-N4 NEMA 4 (standard) 2) PS1-1-N-N7 NEMA 4 & 7 (waterproof & explosion proof) 222 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

Pilots for HD Regulating Valves HD Main Valve with PS1 On/Off ontrol Solenoid Pilot Solenoid Pilot HD Series HD Main Valve HD Main Valve with with PT-Temperature Pilot PS1 On/Off ontrol Solenoid Pilot PP- Pilot PT-Temperature Pilot PS1 On/Off ontrol Solenoid Pilot D I M E N S I O N S H D - S e r i e s inches E D Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 Face-To-Face 1# 300# 43/ 43/ 53/ 51/2 6 61/2 71/4 67/ 73/ 71/2 1/2 9 93/ 3/4 117/ 1/2 151/ 16 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ * 71/2 71/2 71/2 71/2 71/2 71/2 71/2 71/2 71/2 1/4 D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 143/4 193/4 E** 73/4 73/4 73/4 3/ 3/ 3/4 3/4 91/2 1/2 113/4 Weight 1 1 23 43 43 65 (lbs) FLG 35 60 5 5 145 235 470 MATERIALS for On/Off Solenoid Pilot Pilot ody & over Seat Gasket over Screws Internals Ductile Iron 302 SS Steel, GR5 Stainless Steel MATERIALS for HD Main Valve OPERATING PRESSURES Inlet Range: 15 PSIG (Standard Main Valve) 5 PSIG (Low Main Valve) Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55 Rc) Hardened SST (55 Rc) Phosphor ronze Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 223

ontrollers for HD Regulating Valves PTL & PTR Series HD Series Pneumatic Temperature ontrollers (must be used with PA-Air Pilot) Temperature ontroller PTL PTR Temperature Adjustment Range Maximum Air Supply Sensing ulb Max. Max. Temperature Material Optional Material apillary Length - 3 F 35 PSIG i-metallic PSIG 400 F opper Stainless Steel N/A 0-300 F 35 PSIG Hydraulic Fill PSIG 3 F opper Stainless Steel 4-ft. PTL (mounts directly on tank or vessel) Temperature Range: PTR: 0-300 F PTL: -3 F PTR (mounts remotely with 4-ft. capillary) Typical Applications The PTL and PTR Pneumatic Temperature ontrollers operate over a wider temperature range and react faster than our standard PT temperature pilot. This makes them a preferable choice for instantaneous hot water applications. How it Works Model ode Product Description ulb & apillary PTL-E7 Pneumatic temperature controller, direct mount N/A 5.3 PTR-E Pneumatic temperature controller, remote mount 4 3.0 The PTL and PTR Pneumatic Temperature ontrollers are used in conjunction with a PA-Air Pilot to control the operation of the HD Regulator. The PTL uses a bi-metallic element to sense temperature and the PTR uses a hydraulically-filled bulb (with 4-ft. capillary) to sense temperature. The air supply is connected to the inlet of the controller and the air output signal is fed directly to an Air Pilot, which controls the opening and closing of the steam regulating valve. apillary Length Weight lbs for PTL & PTR Pneumatic Temperature ontroller, Air Pilot is required Features Accurate and rapid response to temperature changes Temperature control range of 0-3 F OPERATING PRESSURES Inlet Range: 15-300 PSIG (Standard Main Valve) 5- PSIG (Low Main Valve) Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) 224 How to Size / Order PTL & PTR PNEUMATI TEMPERATURE ONTROLLER Specify: PTL or PTR controller model (air pilot required for operation) AIR PILOT Specify: PA1, PA4 or PA6 Air Pilot model (refer to Air Pilot section) REGULATOR ODY Specify: HD regulator body Regulator size or capacity End connections (threaded, 1/300# flanged) www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

ontrollers for HD Regulating Valves PTL & PTR Series HD Series Pneumatic Temperature ontrollers (must be used with PA-Air Pilot) HD Regulator with PA-Air Pilot Description of Operation air signal line steam inlet air vent Air Regulator hot water outlet Air Inlet Semi-Instantaneous Heater cold water inlet PTL ONTROLLER vacuum breaker hot water outlet The PTL Pneumatic Temperature ontroller senses outlet water temperature on a semi-instantaneous hot water heater. When the outlet water temperature falls below the set point, the PTL pneumatic temperature controller sends an air signal to the PA Air Pilot, which opens the regulator, allowing steam to heat the tank. When the water reaches the desired set temperature, the PTL pneumatic temperature controller shuts off the air signal to the PA Air Pilot and the regulator closes, cutting off steam to the heater. Pneumatic Temperature omptroller steam trap Model PTL (DIRET Mounted) Temperature Set Point Adjustment Knob Thermowell (included) 7/ 111/ 11/2 3/4 35/ 1/ 111/2 27/ Units: inches Model PTR (REMOTE Mounted) Thermowell Temperature Set Point Adjustment Knob (included) 21/4 13/32 111/ 3/4 315/16 opper 61/2 23/4 Stainless Steel with Relay 1/ 21/ 51/4 Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 225

Pilots for HD Regulating Valves PTRP Series Pilots HD Series Temperature ontrol with PTRP Temperature Pilot Model Pilot ody Material Max Inlet Temperature ontrol Range Steam Inlet Range PTRP ast Steel 300 PSIG -440 F 15-300 PSIG (when Standard Temperature Pilot is used with HD Standard main valve) (when Low- Temperature Pilot is used with HD-LP Low- main valve) Steam Inlet Range 5- PSIG Model PTRP-94 contains Temperature Indicating Dial Model PTRP-91 is Non-Indicating LOW PRESSURE PTRP-LP Pilot (pressures under 15 PSIG) Use ode LP: Low pressure Temperature Pilot is required for steam pressure under 15 PSI. (Range 5 - ) PILOT: Example Model ode: PTRP-LP-06-0-S15 LOW PRESSURE HD Main Valve (pressures under 15 PSIG) Use ode LP: A Low Main Valve must be used in conjuction with a Low Temperature Pilot for steam pressure under 15 PSIG MAIN VALVE: Example Model ode: HD-13-N-LP (Range 5 - ) (ellows not shown) Typical Applications Over-Temperature Protection Spring The PTRP-Temperature Pilot is used with the HD Regulator to control temperature in various processes and systems. The PTRP uses a vapor tension system to actuate the bellows in the temperture pilot giving it a faster reaction time and better temperature sensitivity than the standard PT pilot. They can be used on: oil heaters, ovens, process heaters, vats, dryers, jacketed kettles, and semi-instantaneous water heaters. Features 11.6 Stainless steel valve and seat Standard bulb & capillary is copper, which has the best heat transfer properties. Standard capillary length is ft. with 316 stainless steel armour-protection Teflon V-Ring Packing Options Seat 226 Temperature Adjustment Screw apillary Lengths: Available in,, 16, & 24-ft. Special Materials: Sensing bulb, thermowells, and capillary are available in special corrosion resistant materials. - 316 stainless steel capillary, bulb & bushing - 316 stainless steel armor with standard capillary Thermowell (Separable Socket): Available in stainless steel or copper Temperature Sensing Dial: Indicates temperature of process being controlled SDWA ompliance (Safe Drinking Water Act); onsult factory www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Specifications Dial Thermometer: 4" dial, stainless steel case, swivel and angle adjustment (Model PTRP-94 only) Housing: Die cast aluminum, epoxy powder coated grey finish ellows: High pressure brass, corrosion resistant, tin plated finish (not shown) Over-Temperature Protection: Upper range limit +0 F

Pilots for HD Regulating Valves PTRP Series Pilots HD Series DIMENSIONS HD-Series inches Face-To-Face 4.0 43/ 43/ 53/ 61/2 71/4 71/2 1# Weight (lbs) 300# 6 67/ 1/2 93/ 117/ 151/ 73/ 9 3/4 1/2 16 51/2 51/2 61/4 73/ 73/ 1/4 9 7/ 7/ 141/ 14 14 14 14 14 14 14 14 14 141/2 D 61/2 61/2 7 3/4 3/4 7/ 113/4 131/4 143/4 193/4 E 73/4 73/4 73/4 1/4 1/4 1/2 1/2 91/2 1/2 113/4 1 1 23 43 43 65 FLG 35 60 5 5 145 235 470 MATERIALS for PTRP Pilot Pilot ody Valve and Seat ast Steel Stainless steel Support racket ulb & apillary Aluminum opper (optional stainless steel) rass E All Other Parts D 51/2 Size 1/2 3/4 1 11/4 11/2 2 21/2 3 4 6 MATERIALS for HD Main Valve 2 Hot water outlet 1/2 Solenoid-operated discharge valve (pipe to drain) ody over Gasket over Screws Pilot Adapter Screen Tubing Valve Seat Valve Disc Diaphragm Ductile Iron Ductile Iron Grafoil/Garlock Steel Ductile Iron/ast Steel Stainless Steel opper Hardened SST (55 Rc) Hardened SST (55 Rc) Phosphor ronze HD Valve with PTRPTemperature Pilot Application PTRP Temperature Pilot 3 old water inlet Steam condensate return Steam Trap A semi-instantaneous steam-to-water heater is a common application where the simple benefits of a self-contained, pilot-operated regulator with temperature sensing pilot may be favored over more complex and expensive control valves. The thermally sensitive bulb of the PTRP pilot contains a fluid that creates a vapor which increases or decreases in pressure as the sensing bulb sensing the heated water temperature increases or decreases. This vapor pressure is transmitted hydraulically to the bellows, which actuates the pilot and HD regulator to control the flow of steam into the heater. At start-up, the pilot is manuallyadjusted to raise the temperature set point and allow steam to flow through the pilot and valve. As the heated water nears the temperature set point, the vapor pressure in the sensing bulb increases and expands the bellows, closing the pilot and regulator to proportionally limit the steam supply. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 227

Pilots for HD Regulating Valves PTRP Series Pilots HD Series Temperature ontrol Sensing ulb Selection & Installation: The sensing bulb and capillary is available in either opper (standard) or Stainless Steel (for corrosive applications). opper has the best heat transfer properties and should always be chosen unless used in corrosive service. Sensing bulb length is dependent upon the capillary length required; longer capillary lengths require a longer bulb to hold the additional actuating fluid. When installing the sensing bulb, the Union Hub is first threaded into a tank or piping system. The bulb slides thru the Union Hub and held in place by threading in the Union Nut. The angled seating surface of the bulb forms a metal-to-metal seal to the Union Hub, preventing the leakage of process fluid. *Note for 9 ulb: Sensing ulb & apillary ORDER ODE Sensing ulb Material apillary Tubing Material S15 opper (rass Union Hub) opper with Stainless Steel Spiral Armor U Stainless Steel (Stainless Steel Union Hub) Stainless Steel with Stainless Steel Spiral Armor A 13 16 U.25 15.25 19.25 S15* (special 9 ) opper (rass Union Hub) (9 bulb) opper with Stainless Steel Spiral Armor A 9 9 9 U.25.25.25 S16* (special 9 ) Stainless Steel (Stainless Steel Union Hub) (9 bulb) Stainless Steel with Stainless Steel Spiral Armor A 9 9 9 ` U.25.25.25 S16 A apillary Length in Feet,, 16 24 13 16.25 15.25 D ulb Dia. 1 19.25 1 3/4 3/4 are should be taken when using 9 bulbs, and they should only be used in applications where space considerations exist. They should not be used when the temperature of the actuator housing is higher than the sensing bulb temperature, as this condition may create erratic temperature control. The temperature of the actuator housing is affected by the surrounding ambient temperature as well as the steam temperature flowing through the valve and may reach 140 F. Tank Wall UNION NUT A Insertion Length Unscrews to allow for Sensing ulb Removal U Sensing ulb Length Sensing ulb STAINLESS STEEL ARMOR PROTETED APILLARY UNION HU - 1 D Threaded into side of vessel & is not permanently fastened to bulb. (Included with ulb; discard when using Thermowell) 3/4 For special 9 ulb. Thermowell Option (ordered separately) Thermowells isolate and protect the sensing bulb from the process fluid; available in either brass (better heat transfer properties) or Stainless Steel for corrosion resistance. They allow for sensing bulb removal and replacement without having to drain liquid from the system. For corrosive applications, a Stainless Steel thermowell (with a copper sensing bulb) can be used. For best temperature control use a copper sensing bulb with a brass thermowell. Thermowells are also recommended for applications with excessive system pressures or extremely turbulent flow to protect the sensing bulb from damage. THERMOWELLS - Model Numbers & Lengths rass Model No. Stainless Steel Model No. Nominal Length 536-S2 536-SE2 536-WE2 535-M2* 536-S6 536-SE6 536-WE6 535-M6* 13" 16" " 9" Notes: A INSERTION LENGTH (in.) UL THERMOWELL apillary Length in Feet.25 15.25 19.25.25 13.00 16.00.00 9.00, or 16 24, or 16 1) Other connections and lengths may be available, consult factory. 2) External pressure rating on rass is 0 PSI max. 3) External pressure rating on 316 SS is 00 PSI max. THERMOWELL LENGTH ulb being removed from side of tank A Insertion Length Sensing ulb Sensi ng HU - 11/4 1 22 Thermowell remains in place (Attached to thermowell and threaded into side of vessel) For special 9 ulb. www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Note: to ensure minimum response time, Heat Transfer Paste should be applied to the sensing bulb before installation into the thermowell.

Pilots for HD Regulating Valves PTRP Series Pilots HD Series Model ode hart with Temperature Ranges ( ft. apillary Lengths) 01-70 40-90 30-115 - 140 75-165 5-195 5-215 155-0 - 20 225-315 255-370 295-4 3-440 02* 03 04 05 06 07 09 11 13 14 Recommended Working Span ( F) Model ode Model ode Weight NON-Indicating Indicating lbs 40 to 65 F PTRP-91-01-0 PTRP-91-02-0 PTRP-91-03-0 PTRP-91-04-0 PTRP-91-05-0 PTRP-91-06-0 PTRP-91-07-0 PTRP-91-09-0 PTRP-91--0 PTRP-91-11-0 PTRP-91--0 PTRP-91-13-0 PTRP-91-14-0 PTRP-94-01-0 PTRP-94-03-0 PTRP-94-03-0 PTRP-94-04-0 PTRP-94-05-0 PTRP-94-06-0 PTRP-94-07-0 PTRP-94-09-0 PTRP-94--0 PTRP-94-11-0 PTRP-94--0 PTRP-94-13-0 PTRP-94-14-0 65 to 5 F 5 to 1 F 1 to 135 F 135 to 160 F 160 to 190 F 190 to 2 F 2 to 245 F 245 to 275 F 275 to 3 F 305 to 365 F 365 to 415 F 415 to 435 F Nominal Range ( F) Range ode * The recommended working span typically falls within the upper third of the nominal temperature range. ROSS REFERENE: PTRP = Spence T-14 Model ode onfiguration hart Models PTRP-91 PTRP-94 PTRP-LP-91 PTRP-LP-94 Non-Indicating Indicating Dial Non-Indicating Indicating Dial Temperature Range apillary Length ulb 01 14 0 16 24 S15 Refer to Temperature Range hart Feet (std) Feet 16 Feet Feet 24 Feet (copper bulb) (standard) S16 (SS bulb) S15 (9 copper bulb) S16 (9 SS bulb) Note: Thermowells are ordered separately. LP = Low Models. How to write proper model number: HD Main Valve with PTRP Temperature Pilot Explanation of Model Number: PTRP-91 06 0 S15 Model Temp. Range ap. Length ulb Type Model Number: PTRP-91-06-0-S15 Model PTRP-94 contains Temperature Indicating Dial Model PTRP-91 is Non-Indicating Model ode for Main Valve: HD-17-F1 (2 HD Series Valve with 1# Flanged) Model ode for Pilot: PTRP-94-06-0-S15 (Temperature Pilot with Indicating Dial (5-195 F) with Ft. apillary, opper ulb) Example Model odes: 1) PTRP-91-06-0-S15 2) PTRP-94-06-0-S15 (5 F - 195 F Temp Range, ft. apillary, opper ulb) (5 F - 195 F Temp Range, with Dial Thermometer, ft. apillary, opper ulb) Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 229

Pilots for HD Regulating Valves PDP Pilots HD Series Differential PDP Ductile Iron 300 PSIG 3-0 PSIG Differential Pilot ody Material Max Inlet Reduced Outlet Range Inlet Range (with HD Standard main valve) (with HD-LP Low- main valve) Minimum Differential (with HD Standard main valve) (with HD-LP Low- main valve) 15-300 PSIG 5- PSIG PSI 3 PSI Typical Applications The PDP-Differential Pilot is used with the HD Regulator to maintain steam pressure at a set differential pressure above another media source. This is typical on an oil burner where steam used for atomization is injected into the oil burner at a set pressure above the incoming oil supply pressure. When oil pressure fluctuates (based on demand), the steam pressure will maintain a constant differential pressure above the oil pressure. Range PSI Model ode Spring olor Weight lbs 3-25 -0 0-0 PDP-Y PDP- PDP-R Yellow lue Red 16 16 16 Features The PDP-Differential Pilot is used to maintain downstream steam pressure to a set differential pressure above loading pressure Accuracy to within ±2 PSI 3 overlapping spring ranges to choose from Pilot is installed using only four bolts Full port strainer and blowdown valve on pilot adapter for ultimate protection from dirt and scale Solid floating diaphragm Watson McDaniel's pilots can be used with other manufacturers regulators How to Size / Order PDP - DIFFERENTIAL PRESSURE PILOT Specify: Reduced pressure range Example: PDP-Y: PDP Pilot with 3-25 PSIG spring REGULATOR ODY Specify: HD regulator body Regulator size or capacity End connections (threaded, 1/300# flanged) Adjusting Screw Options Solenoid pilot can be added for remote on/off control of regulator MATERIALS for PDP Differential Pilot Pilot ody & over Seat Gasket Diaphragm Head & Seat Assembly Ductile Iron & ast Steel 302 SS Phosphor ronze Hardened SST (55 Rc) 9.27 O P E R AT I N G P R E S S U R E S Inlet Range: 15-300 PSIG (Standard Main Valve) 5- PSIG (Low Main Valve) Minimum Differential : PSI (Standard Main Valve) 3 PSI (Low Main Valve) 230 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Units: inches 5.00

HSP Regulating Valve ast Steel Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 231

Regulating Valves ast Steel HSP Series Regulating Valve Model Sizes onnections ody Material PMO Max. Operating HSP Series 1, 11/2, 2, 3, 4 1#/300# Flange ast Steel 4 PSIG TMO Max. Operating Temperature PMA Max. Allowable TMA Max. Allowable Temperature 6 F 5 PSIG @ 6 F 6 F @ 5 PSIG Pilot shown Left-mounted (opposite-mounted) OPERATING PRESSURES Inlet Range: 15-4 PSIG (standard Main Valve) 5- PSIG (low-pressure Main Valve) Inlet Minimum Differential : PSIG (standard Main Valve) 3 PSIG (low-pressure Main Valve) PRESSURE-ADJUSTING SPRING RANGES Ranges Identifying olors -40 PSIG 25-0 PSIG 75-300 PSIG yellow blue red Typical Applications The HSP Series Main Valve with integral Pilot reduces steam pressure in steam system piping mains and process applications. This pilot-operated regulator is specifically used in applications where the properties and benefits of ast Steel are desired and/or specified. Using steel as the material of construction for the main valve body extends the pressuretemperature rating of the regulator. A unique two-bolt pilot adapter design and field-reversible tubing offer even greater versatility to this type of regulator, further reducing maintenance downtime. These valves share the same design and proven reliability of the Watson McDaniel HD-Series, providing extremely accurate control of downstream system pressure even when inlet pressure to the regulator fluctuates or steam usage varies. Features ast Steel body for higher pressure and temperature ratings New, convenient bolt-on pilot design simplifies installation New diaphragm design improves performance and extends life Hardened stainless steel trim for extended life Optional Stellite trim available Full port strainer and blowdown valve on pilot adapter for ultimate protection from dirt and scale Maintains downstream pressure to ±1.0 PSIG hoice of three overlapping spring ranges Pre-mounted pilot & tubing simplifies installation ontrol Pilots 232 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Pilot Mounting Standard pilot mounting is on the right side of the regulator when looking into the outlet port. For opposite-mounting, specify when ordering. Pilot mounting on HSP regulators are field-reversible. Pilot The spring-adjusted Pilot is used for general purpose pressure reducing applications. MATERIALS for HSP Regulator ody over Diaphragm over Pilot Gaskets Seat Disc Diaphragm Diaphragm for LP Model Mfg. olts Spring Stem ASTM A-216 GR W ASTM A-216 GR W ASTM A-216 GR W ASTM A-216 GR W Garlock 3400/grafoil SLS 4F SS (optional Stellite seat, consult factory) 4F SS ronze EPDM SA-193 GR 7 302 SS 416 SS

Regulating Valves ast Steel HSP Series Regulating Valve Top & ottom Guided Stem Assembly Pilot shown Left-mounted (opposite-mounted) Hardened SS (55 Rc) Seat & Disk ast Steel ody Adjustment Screw Pilot (quick-change) INLET Full-Port Pilot Strainer with built-in lowdown Valve ronze Stem Guide Spring protected from steam High Tensile Diaphragm Regulator shown with Left-mounted Pilot (right-mounted is standard) Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 233

Regulating Valves ast Steel HSP Series Regulating Valve Model includes HSP Main Valve with Pilot Size/onnection Model ode Pilot Range (PSI) 1# FLG HSP-14-F1-Y HSP-14-F1- HSP-14-F1-R -40 25-0 75-300 36 300# FLG HSP-14-F300-Y HSP-14-F300- HSP-14-F300-R -40 25-0 75-300 3 1# FLG HSP-16-F1-Y HSP-16-F1- HSP-16-F1-R -40 25-0 75-300 60 300# FLG HSP-16-F300-Y HSP-16-F300- HSP-16-F300-R -40 25-0 75-300 64 1# FLG HSP-17-F1-Y HSP-17-F1- HSP-17-F1-R -40 25-0 75-300 7 300# FLG HSP-17-F300-Y HSP-17-F300- HSP-17-F300-R -40 25-0 75-300 90 1# FLG HSP-19-F1-Y HSP-19-F1- HSP-19-F1-R -40 25-0 75-300 170 300# FLG HSP-19-F300-Y HSP-19-F300- HSP-19-F300-R -40 25-0 75-300 175 1# FLG HSP--F1-Y HSP--F1- HSP--F1-R -40 25-0 75-300 255 300# FLG HSP--F300-Y HSP--F300- HSP--F300-R -40 25-0 75-300 265 1 11/2 2 3 4 Weight lbs Pilot Ranges ode olor PSIG Y R Yellow lue Red -40 25-0 75-300 Model onfiguration hart Models ode Size HSP Full Port HSPR Reduced Port 14 16 17 19 1 11/2 2 3 4 ode onnection ode Range (PSIG) ode F1 1# Flanged F300 300# Flanged Y R -40 (yellow) 25-0 (blue) 75-300 (red) SSXT ST LP SSD Example Model odes: 1) HSP-17-F1-Y 2) HSPR-17-F300--ST 234 (HSP Full port valve, 2 1# Flg, -40 PSIG, with no options) (HSP Reduced port valve, 2 300# Flg, 25-0 PSIG, with Stellite Trim) www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Options (Suffix) Stainless Steel External Tubing Stellite Trim Low Main Valve Spring SS Diaphragm

Regulating Valves ast Steel HSP Series Regulating Valve A E Standard pilot mounting is on the right side of the regulator when looking into the outlet port (as shown). Pilot mounting on HSP regulators are field-reversible. FLOW D DIMENSIONS HSP Series inches Size 1 11/2 2 3 4 (A) Face-To-Face 1# 300# 51/2 6 67/ 73/ 1/2 9 3/4 117/ 1/2 61/4 73/ 1/4 7/ 7/ 31/2 47/ 53/ 63/4 71/2 D 7 3/4 7/ 131/4 143/4 E 63/ 71/16 73/16 3/16 95/16 Weight (lbs) 1# 300# 40 45 55 60 75 5 130 145 215 235 HSP Regulator Steam Inlet Reduced Outlet Gate Valve Y-Strainer Steam Outlet Sensing Line FTT Steam Trap ondensate Return Line Reducing Station for Steam Application Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 235

- Noise Attenuators Orifice Plate for Regulating Valves Series A Noise Reduction Noise Attenuation Equipment is used to reduce unwanted or excessive noise that commonly occurs in pressure reducing stations. Series-A Orifice Plate Noise Reduction apability: 5- da Description Selection: Series A orifice plates are custom engineered to maximize noise attenuation and reduce dba to the lowest achievable value. The number and diameter of holes will be determined based on application conditions, and the plate diameter will typically be equal to the recommended downstream pipe size. Therefore, the following information is required for selection: Inlet (Supply) to the HD/HSP Regulator Outlet (Downstream) of the HD/HSP Regulator Steam Flow Rate (lb/hr) How it Works Full Model ode Size WSA-- WSA-13- WSA-14- WSA-15-7 WSA-15- WSA-16- WSA-17- WSA-17- WSA-1-5 WSA-1-40 WSA-1- WSA-19-5 WSA-19-30 WSA-19- WSA--5 WSA--30 WSA-- WSA-22-5 WSA-22- WSA-22-1/2 3/4 1 11/4 11/4 11/2 2 2 21/2 21/2 21/2 3 3 3 4 4 4 6 6 6 PSI 5-5- 5-5-7-5- 5-25- 5 7-40 - 5 7-30 40-5 7-30 40-5 7- - Notes: 1) 300# Flange plates available. onsult Factory. (WS) 2) Must specify Inlet to the regulating valve when ordering The Series-A Orifice Plate with its drilled orifice pattern is installed after the pressure regulating valve to smooth out turbulence caused by the pressure drop across the regulator. Noise reduction levels of 5- da can typically be achieved. Orifice Plate installed between flanges Installation The Series-A Orifice Plate is installed between ANSI flanges immediately after the regulator. If the regulator is a flanged unit, the orifice plate is placed at the flange outlet connection. FLOW A DIa. Series-A Typical Hook-up.75 Series-A DIMENSION (A) inches FLOW FLOW Reducing Valve Series-A Orifice Plate Pipe Size 5# Flange # Flange 2 21/2 3 4 6 6 7 71/2 9 11 43/16 415/16 511/16 615/16 911/16 Note: Other sizes available. onsult factory. 236 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

- Noise Attenuators Acoustic Silencer for Regulating Valves Series H Noise Reduction Noise Attenuation Equipment is used to reduce unwanted or excessive noise that commonly occurs in pressure reducing stations. Noise Reduction apability: -30 da Series-H Acoustic Silencer How it Works The Series-H Acoustic Silencer incorporates a Dual Diffuser tube design. The inner tube has a drilled orifice pattern and the outer tube contains an integral layer of sound absorbing insulation. Noise reduction levels of -30 da can typically be achieved. Installation The Series-H Diffuser Tube should be installed immediately downstream of the regulator, as shown below. Series-H DIMENSIONS inches A1 A Inlet Model A1 A Weight (lbs) LV- LV- LV- 4 6 6 14 16 1 57 71 1 145 2 295 Note: Other sizes available. onsult factory. Series-H Typical Hook-up Gate Valve Sensing Line Gate Valve Separator FLOW Strainer PRV To Trap Series-H Acoustic Silencer Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 237

- Noise Attenuators Acoustic Diffuser for Regulating Valves Series S Noise Reduction Noise Reduction apability: -15 da Series-S Acoustic Diffuser How it Works The Series-S Acoustic Diffuser incorporates a single tube with a drilled orifice pattern which reduces downstream turbulence. Noise reduction levels of -15 da can typically be achieved. Installation The Series-S Diffuser Tube should be installed immediately downstream of the regulator, as shown below. Series-S Typical Hook-up Gate Valve Gate Valve Sensing Line Separator FLOW Strainer PRV Series-S Acoustic Diffuser To Trap Model Selection hart for Series-S Diffuser Steam apacity (lbs/hr) Valve Inlet (PSIG) 15 25 30 40 00 S-3 S-3 S-3 S-3 S-3 10 S-3 S-3 S-3 S-3 S-3 00 S-4 S-4 S-4 S-4 S-4 3000 S-4 S-4 S-4 S-4 S-4 4000 S-5 S-5 S-5 S-5 S-5 6000 S-6 S-6 S-6 S-6 S-6 000 S- S- S- S- S- 000 S- S- S- S- S- Note: For higher capacity models, S- & S-, consult factory. 23 60 75 90 0 5 1 175 0 225 S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- S-3 S-3 S-4 S-5 S-5 S-6 S- S- www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

- Noise Attenuators Acoustic Diffuser for Regulating Valves Series S Noise Reduction x utt-weld Series-S DIMENSIONS inches Inlet (A) Model S-3 S-6 S- S- S- Notes: 21/2 21/2 3 21/2 3 4 21/2 3 4 6 21/2 3 4 6 FLG/W D 2 2 4 4 4 4 4 4 4 4 4 4 4 6 6 6 6 6 51/2 51/2 61/2 61/2 61/2 61/2 61/2 61/2 61/2 61/2 61/2 61/2 61/2 131/2 131/2 131/2 131/2 131/2 131/2 131/2 161/2 161/2 161/2 161/2 161/2 161/2 14 14 14 14 14 17 17 17 17 17 14 14 14 14 14 21 21 21 21 23/ 23/ 41/2 41/2 41/2 41/2 41/2 41/2 41/2 41/2 41/2 41/2 41/2 55/ 55/ 55/ 55/ 55/ 5/ 5/ 5/ 5/ 5/ 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 1)1# & 300# flanged available. 2) Other sizes available; consult factory. FLOW D (A) Inlet Outet W Flanged x utt-weld (A) Inlet Flanged S-5 3/4 1 3/4 1 11/4 11/2 2 3/4 1 11/4 11/2 2 21/2 11/4 11/2 2 21/2 3 11/2 2 21/2 3 4 2 21/2 3 4 6 21/2 3 4 6 FLG x Weld Dimensions S-4 Outlet Outet W x Flanged (A) Inlet Outet Flanged Flanged x Flanged W = utt-weld (A) Inlet Flanged Outet Flanged Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 239

apacity harts HD & HSP Series Full Port A PA I T I E S Steam (lbs/hr) Inlet (PSIG) Outlet (PSIG) v Factors 5 7 15 25 30 40 60 75 90 0 5 1 175 0 225 300 400 4 Note: 240 0 2 0 2 3 0 2 5 0 4 7 0-3 5 0-5 0-7 15 0-15 0-1 25 30 0-30 40 0-30 35 0-35 60 0-45 60 75 0-60 0 0-60 75 0 0-75 0 5 0-5 5 1 0-0 5 1 0-1 1 175 0-130 1 0 0-160 175 0 0-0 300 0-225 300 3 FULL PORT 1/2" 3/4" 1" 11/4" 11/2" 2" 21/2" 3" 4" 6" 3. 6.7 11 15 21 37 55 71 113 241 5 0 115 5 90 1 140 0 160 140 5 190 175 140 2 190 170 225 0 275 225 3 300 400 3 275 475 425 300 575 475 400 675 575 425 7 700 0 925 25 625 10 925 6 75 00 7 14 1300 75 1575 14 13 17 16 10 45 1945 170 1 140 0 10 160 260 240 175 20 240 0 325 300 375 325 300 4 425 3 0 4 375 600 0 425 700 6 0 775 525 00 25 700 10 00 7 1300 10 75 16 1475 10 1900 1600 11 2 1300 0 2300 1900 200 0 2400 30 2900 3605 3425 3140 230 325 300 275 425 400 300 475 400 375 5 0 400 625 5 0 775 700 600 00 7 6 00 700 10 10 00 13 1 16 13 11 19 1700 10 00 1400 2700 2400 30 2700 1900 3700 2900 40 3700 30 4600 40 3900 4700 30 59 5625 5155 790 75 6700 970 0 7540 3 3 4 400 375 575 5 400 600 5 0 7 700 0 7 675 975 00 10 00 13 11 00 16 10 10 1900 1700 10 2300 1900 1600 2700 2300 1700 3000 2700 1900 3700 3300 0 4300 3600 2600 00 4000 2900 5700 4300 60 5700 5300 6900 60 400 075 7670 7030 0 440 600 575 525 00 600 900 00 700 00 900 00 10 00 9 10 1300 10 10 1400 10 1900 1600 1400 2300 00 10 2600 2400 1600 30 2600 20 3700 30 2300 40 300 2700 4600 30 6000 3600 70 5600 40 000 70 6000 700 000 7400 9700 90 6700 113 740 940 140 1300 1 16000 13300 00 770 10 00 900 10 1400 00 1600 1400 10 1700 1300 1600 2600 2400 00 2700 0 3300 200 0 40 3600 2700 4600 4300 2900 5600 4600 3900 6600 5700 40 7300 6700 400 90 0 60 600 9000 6400 10 9900 7300 140 600 600 15400 140 130 170 16000 11900 192 1925 17340 2300 210 26900 23900 10 10 16 10 1300 20 1600 2400 1900 2700 0 00 30 2700 0 300 3600 3000 40 300 30 00 40 3700 6000 5400 40 6900 6400 4300 300 6900 500 900 0 60 00 000 70 14000 0 90 0 13400 90 1600 14700 00 0 1700 15700 22900 0 190 250 2300 17600 296 2130 2570 1600 10 00 200 2700 00 30 2700 2400 30 30 2600 4000 30 30 00 4600 3900 4900 40 6400 5400 4700 700 6900 900 0 5600 00 900 7400 700 900 7900 14000 900 90 170 15700 11900 400 17400 300 24000 1900 14000 270 240 300 290 270 2 32900 3000 2200 3230 363 33275 400 460 400 500 5 460 2600 2400 3600 30 200 4600 4300 30 4900 4300 300 5600 40 6400 5600 7900 7300 60 300 700 60 300 700 7600 400 300 140 130 900 170 140 1 0 17400 600 220 0 14700 2000 00 19000 32400 27700 19600 30 300 220 430 3400 32300 47000 43300 400 53400 49000 360 6040 5700 52960 7000 739 6 7600 30 73900 50 700 6700 6000 9900 90 6900 300 90 0 110 900 13700 00 16900 15600 130 1700 16600 14000 21900 10 160 260 23600 1700 30300 27900 19000 36600 300 2 430 370 27000 470 4300 31300 590 530 40400 690 59000 41900 1400 64300 470 900 1900 6900 00 92300 50 11 4600 77300 97 3270 19 For inlet pressures in green shaded area, use low pressure main valve and low pressure temperature pilot. For 400 & 4 PSIG inlet pressures, use HSP regulator only. www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

apacity harts HD & HSP Series Reduced Port A PA I T I E S Steam (lbs/hr) Inlet (PSIG) Outlet (PSIG) v Factors 5 7 25 30 40 60 75 90 0 5 1 175 0 225 300 400 4 Note: 3/4" 1" 11/4" 11/2" 2" 21/2" 3" 4" 6" 1.4 3.3 5.6 7. 13.3 1. 25.9 41.7 74 163 15 13 21 19 29 2 25 35 33 29 43 41 37 57 51 47 70 67 59 1 76 66 5 99 7 135 11 153 143 9 195 164 132 229 197 146 255 235 176 322 294 221 31 329 243 449 360 265 9 459 39 560 493 416 62 5 441 755 715 655 35 32 4 46 44 70 6 60 3 7 6 2 9 134 1 111 166 15 139 190 10 155 24 199 13 31 277 360 33 230 460 37 3 540 465 345 600 554 416 760 693 51 900 775 575 60 49 625 10 2 917 1319 1162 90 140 136 40 1775 1690 15 59 53 2 79 74 117 115 2 141 133 115 173 166 149 227 4 1 22 269 235 323 305 263 4 367 311 539 470 353 611 573 390 70 657 529 916 79 55 1 940 706 90 1176 2 1527 1315 975 1440 60 37 136 1556 223 1972 1663 2511 2352 1764 3015 265 2625 4070 360 3430 450 4340 360 2 75 115 1 4 164 160 142 197 15 160 241 232 317 24 262 393 375 32 4 426 366 55 511 433 751 655 491 51 79 543 6 916 737 77 10 15 1419 13 93 1796 163 29 2 131 135 5 06 1476 237 2557 2167 3117 2747 2316 349 3276 2457 40 3990 3655 197 11 276 265 395 37 342 473 446 35 50 55 0 764 64 632 94 905 790 5 25 3 14 32 44 109 1579 114 51 1924 1309 2619 27 1777 3077 264 1964 3419 315 2367 4329 394 2961 5 4414 3274 6939 435 355 63 6164 5223 7514 6621 553 431 796 5922 1 9615 240 30 1 240 13930 30 272 249 31 365 344 544 533 471 653 615 530 00 769 690 53 942 70 1305 46 1495 1413 16 1943 169 1439 2492 2175 1632 226 2651 104 360 3040 244 4239 3649 2705 47 4351 3263 5964 5439 4079 7065 601 45 3 6661 5606 94 492 7195 351 91 7692 11614 7 159 13945 13 140 43 401 613 57 554 76 5 75 51 990 54 7 3 1111 1696 1517 1401 22 06 1751 240 2275 195 3 2734 2317 4013 32 2627 45 426 2904 509 495 3941 625 574 4357 754 7006 5254 9603 757 656 11376 9791 7261 13396 725 793 1516 13672 1154 16667 1466 34 1700 17514 13136 224 21330 19545 2990 27460 244 32600 3090 27460 777 7 42 93 1554 1523 1346 165 175 1515 224 219 1972 3009 2692 246 3730 3561 3 4273 4037 3475 5551 452 4111 71 6216 4662 074 7573 5154 30 67 6993 1 425 7731 1345 432 9324 17041 15540 11655 17 17374 5 23771 19032 1400 26916 24262 557 29577 26061 21976 3314 30 233 3940 37 3460 514 47 43330 5790 5440 47 17 1569 2396 2296 2165 3423 3354 2964 4 373 3336 31 441 4343 6629 5929 5477 215 743 646 9411 92 7654 227 6 9056 1566 13692 269 1776 1662 11353 22706 19135 15404 2660 22962 17029 29644 2734 53 37536 34230 25672 44467 3270 232 52362 41923 3055 592 53442 45232 651 57405 4409 73095 6460 51345 7760 3370 76400 140 195 17 177 279 274 242 335 316 272 4 395 354 541 43 447 670 640 559 76 726 625 99 72 739 0 1117 3 1451 1361 926 153 1561 57 2177 174 139 2419 2234 1676 3063 2793 95 362 33 2316 4272 3421 251 43 4360 3695 5360 464 39 5964 556 4190 7160 600 6235 9460 970 7970 6 090 970 15 1/2" 0 2 0 2 3 0 2 5 0 4 7 0-3 5 0-5 0-7 15 0-15 0-1 25 30 0-30 40 0-30 35 0-35 60 0-45 60 75 0-60 0 0-60 75 0 0-75 0 5 0-5 5 1 0-0 5 1 0-1 1 175 0-130 1 0 0-160 175 0 0-0 300 0-225 300 3 REDUED PORT For inlet pressures in green shaded area, use low pressure main valve and low pressure temperature pilot. For 400 & 4 PSIG inlet pressures, use HSP regulator only. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 241

Direct-Operated & Temperature Regulating Valves Direct-Operated are used for controlling pressure or temperature in a variety of applications. Regulating Valves Page No. Page No. ast Iron 3/ 2 O Series 246-249 & Temp Regulating Valve: Steam, Water, Oil, Air, other Liquids & Gases The O-Series, with ast Iron body and Hardened Stainless internals, is our most popular and economical solution for reducing pressure in STEAM systems. It is also suitable for Water, Oil, Air as well as other Liquids & Gases. ronze, ast Iron 1/2 4 ronze, ast Iron 1/2 4 Ductile Iron 1/2 4 242 Series -251 Regulating Valve: Water, Air, Oil, other Liquids & Gases, The -Series is primarily used for reducing pressure in WATER systems. It is also suitable for Air, Oil, as well as other Liquids and Gases. The -Series offers higher capacity than the O-Series. 455 Series 252-253 Regulating Valve: Steam, Air, Other Gases The 455 is ideally suited for reducing pressure in STEAM applications and requires only 5 PSIG minimum inlet pressure. Excellent for use in steam systems that contain large amounts of scale that may cause failure in pilot-operated regulators. 403 Series 254-257 Regulating Valve: Steam, Air The 403 are pilot-operated, piston-actuated, pressure regulators primarily used for reducing pressure in STEAM systems. This regulator is available with an optional internal sensing line which simplifies installation. www.watsonmcdaniel.com 42 Jones oulevard Limerick Airport usiness enter Pottstown PA 19464 Tel: 6-495-5131

Direct-Operated & Temperature Regulating Valves ack- Relief Valves ronze 1/2 3 R-Series & 691-Series ronze, ast Iron 1/2 2 3040-Series Page No. 25-260 Relief & ack Valves: Water, Liquids, Air The R-Series & 691 Series are economically-priced ack Relief Valves for Liquid service. Relief Valves (ack Valves) are used to maintain a specific back pressure or to protect systems from an over-pressure condition. 691-Series is similar to the R-Series with the exception of a soft-elastomeric seat for bubble-tight shut-off. Relief & ack Valves: Water, Liquids, Air The 3040 ack Relief Valve offers a much higher capacity than the R-Series. Used for Liquid service. Relief Valves protect systems from over-pressurized conditions. & Temp 261-263 Temperature Regulating Valves W91 & W94 Series 265-25 Self-Operating Temperature Regulating Valves: Heating, ooling, Mixing & Diverting The W91/W94 Series Temperature Regulating Valves are used for controlling process temperature in industrial and HVA applications. Typical applications are: Heating different processes & devices with steam, ooling equipment with chilled water, or Mixing & Diverting hot & cold liquids using 3-Way Valves. Tel: 6-495-5131 42 Jones oulevard Limerick Airport usiness enter Pottstown PA 19464 www.watsonmcdaniel.com 243

Introduction What are Regulating Valves (PRVs) used for? Steam, liquids and other gases are typically transported through piping systems at relatively higher pressure than ultimately needed and therefore need to be reduced to a lower pressure at the final point of use. The purpose of the Regulating Valve (PRV) is to reduce the pressure of steam, liquid or gas to a lower pressure appropriate for its final application. All pressure regulating valves are self-operated, which means they do not require any outside source of power such as air pressure or electric actuators to operate. In contrast, ontrol valves do require an outide source of power to actuate the valve. All pressure regulating valves are Self-Operated; however, they are categorized as either Direct-Operated or. The are either Piston-Actuated or Diaphragm-Actuated. Direct-Operated O-Series for Steam, Air & Water 455-Series for Steam -Series for Water & Liquids. PRESSURE O-Series -Series 455-Series Direct-operated pressure regulating valves are the simplest in design and the most economical to purchase and therefore should be used whenever suitable. The downstream pressure of the steam or liquid being regulated is used to position the diaphragm and valve disc to control the amount of flow through the valve. Downstream pressure adjustment is easily made by turning the adjustment screw to increase or decrease compression on the control spring. The limitation of the direct-operated type regulator is a variation of up to % of initial set pressure depending on changes in flow through the valve. As flow requirements through the valve increase, the outlet set pressure will tend to decrease. For example; Inlet pressure is 0 PSIG and downstream pressure is adjusted to maintain PSIG while lbs/hr of steam flows through the valve. If the steam flow rate happens to increase to 0 lbs/hr, then the outlet pressure would drop to 45 PSIG. Direct-operated regulators are suitable for many less critical uses in the low-to-moderate flow range including small heaters, humidifiers, hospital equipment, tire molds, typical applications in food processing, as well as many other general uses. Inlet Steam Inlet Flow 244 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 O-Series PRV Reduced Outlet

Introduction Piston-Actuated 403-Series for Steam, Air & Gas Applications Pilot-operated piston-actuated pressure regulating valves contain a separate pilot valve which is mounted on top of the main valve. The valve senses the downstream pressure (low pressure side) and precisely modulates a small amount of steam from the upstream side (high pressure side) to the top of the piston chamber, which in turn controls the opening of the main valve. When steam demand increases and downstream pressure starts to drop, the valve is opened further, allowing for additional flow. Pilot-operated piston-actuated regulators have increased accuracy and consistency of set pressure when compared to the Direct-operated type. Set pressure is more stable and will only vary a few percent over the full flow range. Downstream pressure sensing is either done internally (internally sensed) or by using an external pressure sensing line (externally sensed). The piston-actuated valves are more compact than diaphragm-actuated valves; however, since the piston has more friction than a freely flexing diaphragm, they are not quite as accurate. These valves can be used for low-to-high flow applications or when larger flow rates or more accurate pressure control is required than can be achieved with direct-operated pressure regulators. Reduced Outlet Inlet External Sensing Line PRESSURE External Sensing (standard) (requires sensing line) Steam Inlet onnection Point for External Sensing Line 403 Series Regulator Internal Sensing Path FLOW Internal Sensing Option (Specially drilled internal sensing path eliminates the need for an external sensing line) Reduced Outlet Inlet Steam Inlet 403 Series Regulator Diaphragm-Actuated Diaphragm-Actuated PRVs contain a separate pilot valve mounted externally to the main valve. The pilot valve senses the downstream pressure (low pressure side) through an external sensing line which in turn controls the opening of the main valve. The sensitivity and frictionless motion of the diaphragm, in combination with using a control pilot, make this style of regulators the most accurate. Downstream pressure can often be controlled within 1-2 % of initial set-pressure. Refer to Watson HD-Series for steam applications. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 245

Regulating Valve Model Service Sizes onnections ody Material Seat & Disc Diaphragm (for Steam) O-Series Direct-Operated O-Series Steam, Air, Water & Other Liquids 3/, 1/2, 3/4, 1, 11/4, 11/2, 2 ast Iron Hardened 4 Stainless Steel Phosphor ronze - Steam Diaphragm (for Liquid or Air) Viton - Water, Air & Oil (300 F max) Max Inlet Min Inlet Max Differential Min Differential PSIG 15 PSIG 5 PSI 15 PSI Design /Temperature Rating PMA/TMA PSIG @ 4 F PRESSURE Inlet O-Series PRV Reduced Outlet Steam Inlet Typical Applications The O-Series direct-operated pressure regulators with heavy duty cast iron bodies and internal strainer are suitable for a wide range of applications in the low-to-moderate flow range. Applications include small heaters, humidifiers, various hospital equipment, tire molds, as well as many other general uses. This style of regulator does not require an external sensing line. Set pressure is controlled by turning an adjustment screw with lock nut that increases or decreases spring force above the diaphragm. Several spring ranges are available, depending upon the downstream pressure that needs to be maintained. O-Series contains hardened stainless steel seat and disc for extended service life. Phosphor ronze Diaphragm specifically designed for Steam service is considered a preferred choice over Stainless Steel diaphragms which are prone to work-hardening and potential cracking. Viton diaphragms are specifically designed for water, air, gases and other liquid service and have a working temperature range up to 300 F. Features & Options Hardened stainless steel seat and disc for extended service life (55 Rc) Phosphor ronze diaphragm for Steam Service Viton diaphragm for up to 300ºF for Water, Oil & Air Service Double spring available for extended outlet pressure range Integral stainless steel strainer on 3/4 H, 1, 11/4, 11/2 & 2 246 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Double-Spring Option allows for a wider range of pressure reduction Adjustment Screw

Regulating Valve O-Series Direct-Operated Adjustment Screw Lock Nut ontrol Spring(s) PRESSURE High-performance Diaphragm: Phosphor ronze for Steam Service Viton for Liquid or Air Service Hardened Stainless Steel Trim for Extended Service Life Internal Strainer to protect against dirt & scale On 3/4 H & 1-2 Models Guided Stem Double Spring Outline DIMENSIONS & WEIGHTS inches Size A Single Spring Double Spring Weight (lbs) 3/" 1/2" 3/4" 3/4" H 1" 11/4" 11/2" 2" 41/4 35/ 35/ 35/ 41/2 41/2 61/2 61/2 61/2 61/2 61/2 1/2 1/2 3/4 3/4 1/2 1/2 1/2 13 13 141/2 141/2 15 1 1 40 40 Flow A Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 247

Regulating Valve O-Series Direct-Operated How to Size/Order From the apacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (steam, air, water) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. Select a model with the spring range that accommodates the required outlet set pressure. Example: PRESSURE Application: 0 lbs/hr of 0 PSIG Steam reduced to 30 PSIG Model ode: O--N-14- (1/2 O-Series, - PSIG spring range, with ronze Diaphragm for Steam) SINGLE Spring Only A PA I T I E S Steam (lbs/hr); *Air (SFM); *Water (GPM) Inlet Outlet 3/, 1/2, 3/4 Press. Press. Steam Air Water 15 30 0 5 1 0 2 5 5 15 5 5 25 40 30 70 30 70 0 30 70 0 1 30 70 0 70 5 Available with either SINGLE or DOULE Adjustment Spring(s) 46 3 65 61 45 3 3 71 1 1 7 214 214 195 261 261 261 1 307 307 307 29 239 401 401 401 401 494 494 494 26 21 36 34 25 46 46 40 67 67 49 119 119 9 145 145 145 1 171 171 171 166 133 222 222 222 222 274 274 274 6 4 6 4 6 13 6 17 14 11 19 17 15 22 1 14 11 26 24 23 2 27 22 3/4 H ** Steam Air Water 92 75 130 3 90 167 167 142 242 242 174 42 42 275 522 522 522 402 615 615 615 596 47 02 02 02 02 9 9 9 51 42 72 69 51 93 93 79 134 134 97 23 23 154 290 290 290 225 341 341 341 333 267 445 445 445 445 549 549 549 11 9 15 13 9 1 13 27 13 33 2 1 39 35 30 44 40 36 2 22 52 49 46 40 57 54 45 Inlet/Outlet s (PSIG) Steam 1 Air Water 130 6 14 174 236 236 1 342 342 247 607 607 390 739 739 739 569 71 71 71 44 677 1135 1135 1135 1135 1400 1400 1400 73 59 2 97 72 131 131 1 190 190 13 337 337 21 4 4 4 31 44 44 44 471 37 630 630 630 630 777 777 777 16 13 22 1 13 2 25 1 3 2 1 47 40 25 55 49 42 2 62 57 51 40 31 74 69 65 57 0 76 63 Steam 11/4 Air Water 145 119 5 194 143 264 264 225 32 32 276 67 67 436 26 26 26 636 974 974 974 943 756 69 69 69 69 1565 1565 1565 1 66 114 9 0 147 147 6 2 2 154 376 376 244 45 45 45 355 540 540 540 527 422 705 705 705 705 69 69 69 1 14 25 14 32 2 42 32 53 45 2 62 55 47 32 69 63 57 45 35 3 7 72 63 90 5 71 * Air and water capacities are based on using elastomeric diaphragms. ** 3/4 H is high-capacity version of standard 3/4 valve. Note: For capacities of other gases multiply the air capacities by the following factors: Argon 0.5 24 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Steam 11/2 Air Water Steam 2 Air Water 10 147 254 241 177 327 327 27 473 473 341 39 39 540 21 21 21 77 14 14 14 1167 935 1570 1570 1570 1570 1935 1935 1935 0 2 141 134 99 11 11 155 263 263 191 466 466 301 567 567 567 440 66 66 66 652 523 71 71 71 71 74 74 74 22 1 30 25 1 39 35 25 53 39 25 66 55 35 76 6 5 39 6 7 70 55 43 2 96 9 7 111 5 199 163 21 266 196 362 362 30 523 523 377 92 92 597 1130 1130 1130 71 1332 1332 1332 91 35 1737 1737 1737 1737 2141 2141 2141 111 91 156 149 9 1 1 172 291 291 211 515 515 333 627 627 627 46 740 740 740 721 57 964 964 964 964 119 119 119 25 19 34 27 19 43 39 27 5 43 27 73 61 39 4 75 64 43 95 7 7 61 47 113 6 99 7 3 116 97 O2 0.1 Helium 2.69 Nitrogen 1.02

Regulating Valve O-Series Direct-Operated Regulating Valves for Steam: Phosphor ronze Diaphragm Water, Oil, Air: Viton Diaphragm Size/ onnection Reduced STEAM Range (PSI) Model ode SINGLE SPRING The O-Series with ast Iron body and Hardened Stainless internals, is our most popular and economical solution for reducing pressure in STEAM systems. It is also suitable for Air, Water, Oil as well as other Liquids and Gases. When used on STEAM Applications, the valve must be specified with a Phosphor ronze Diaphragm (Suffix ode ). When used on Air, Water & Oil or other Liquid Applications, the valve must be specified with a Viton Diaphragm (Suffix ode V). Diaphragm ode: - Phosphor ronze for Steam Service V - Viton (300 F Max) for Air & Other Liquids (O-Series, 3/4, - PSI, Single Spring, Phosphor ronze Diaphragm) 3/ O-11-N-13- O-11-N-14- O-11-N-09- O-11-N-- O-11-N-13-V O-11-N-14-V O-11-N-09-V O-11-N--V 1/2 0- - 40-0 0-0 O--N-13- O--N-14- O--N-09- O--N-- O--N-13-V O--N-14-V O--N-09-V O--N--V 3/4 0- - 40-0 0-0 O-13-N-13- O-13-N-14- O-13-N-09- O-13-N-- O-13-N-13-V O-13-N-14-V O-13-N-09-V O-13-N--V STEAM Water Oil Air 3/4 H 0- -30 30-40-5 OH-13-N-0003- OH-13-N-0004- OH-13-N-0005- OH-13-N-0006- OH-13-N-0003-V OH-13-N-0004-V OH-13-N-0005-V OH-13-N-0006-V 15 15 15 15 1 0- -30 30-40-5 O-14-N-0007- O-14-N-000- O-14-N-0009- O-14-N-00- O-14-N-0007-V O-14-N-000-V O-14-N-0009-V O-14-N-00-V 19 19 19 19 11/4 0- -30 30-40-5 O-15-N-0007- O-15-N-000- O-15-N-0009- O-15-N-00- O-15-N-0007-V O-15-N-000-V O-15-N-0009-V O-15-N-00-V 1 1 1 1 11/2 0- -30 30-40-5 O-16-N-000- O-16-N-0009- O-16-N-00- O-16-N-0011- O-16-N-000-V O-16-N-0009-V O-16-N-00-V O-16-N-0011-V 47 47 47 47 2 0- -30 30-40-5 O-17-N-000- O-17-N-0009- O-17-N-00- O-17-N-0011- O-17-N-000-V O-17-N-0009-V O-17-N-00-V O-17-N-0011-V 4 4 4 4 SINGLE SPRING 2) O-13-N-14-V (O-Series, 3/4, - PSI, Single Spring, Viton Diaphragm) Water Oil Air 0- - 40-0 0-0 Example Model odes: 1) O-13-N-14- Weight lbs STEAM Water Oil Air 0-75 30-130 OH-13-N-070- OH-13-N-009- OH-13-N-070-V OH-13-N-009-V 19 19 1 0-75 30-130 O-14-N-009- O-14-N-09- O-14-N-009-V O-14-N-09-V 22 22 11/4 0-75 30-130 O-15-N-009- O-15-N-09- O-15-N-009-V O-15-N-09-V 22 22 11/2 0-75 30-130 O-16-N-009- O-16-N-09- O-16-N-009-V O-16-N-09-V 4 4 2 0-75 30-130 O-17-N-009- O-17-N-09- O-17-N-009-V O-17-N-09-V 4 4 DOULE SPRING 3/4 H Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com Phosphor ronze Diaphragms may fracture if used on Liquid Service. Use for Steam Only. Model ode PRESSURE Important Application Note: Use Phosphor ronze Diaphragms for Steam. Use Viton diaphragms for Water, Air and Oil Applications. STEAM Water Oil Air 249

Regulating Valve Model Service Sizes onnections ody Material Disc & Diaphragm Max Inlet Min Inlet Max Differential Min Differential -Series Direct-Operated -Series Water, Air, Oil, Other Gases & Liquids 1/2, 3/4, 1, 11/4, 11/2, 2, 21/2, 3, 4, 5# FLG, # FLG 1/2 21/2 ronze 3 & 4 ast Iron Viton - 300 F max PSIG PSIG 5 PSI % of Inlet Design /Temperature Rating PMA/TMA PRESSURE 5# FLG # FLG PSIG 5 PSIG PSIG @ 400 F @ 4 F @ 4 F Typical Applications The -Series direct-operated pressure regulators with balanced valve trim are used for reducing pressure in air and water systems. These regulators are commonly found in industrial plants, apartment buildings, water supply systems, schools and underground water distribution systems. The soft-seated elastomeric Viton disc has an operating temperature up to 300 F and will produce a lass V shutoff. No external sensing line is required with this style of regulator. Inlet Note: Flange selection may reduce pressure/temperature ratings. Size/onnection Model ode * ody Material VITON Diaphragm & Disc (300 F Max) Reduced Outlet 1/2 --N-X-V ronze 3/4-13-N-X-V ronze 1-14-N-X-V ronze 9 11/4-15-N-X-V ronze 13 11/2-16-N-X-V ronze 15 2-17-N-X-V ronze 21 21/2-1-N-X-V ronze 5# FLG -19-F5-X-V ast Iron 1 3 4 # FLG -19-F-X-V ast Iron 160 --F5-X-V ast Iron 0 # FLG --F-X-V ast Iron 2 Example Model ode: -13-N-2-V (-Series, 3/4, -70 PSI Spring Range) Series Spring Selection Table Diaphragm, disc and cup packing in Viton for 300ºF service alanced pressure regulator allows accurate control even when incoming pressure fluctuates Valve has a lass V shut-off rating due to the soft-seated Viton disc Reduced Outlet (PSI) Spring # ode =X 1 - #4 4 5-35 #3 3-70 #2 2 40-5 #1 1 Note: Reduced Outlet 1 PSI (ode 4) available in 1/2, 3/4, and 1 sizes only. www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 27 5# FLG X=Spring ode (reference Spring Selection Table). Features & Options Weight lbs

Regulating Valve -Series Direct-Operated DIMENSIONS Adjustment Screw Size 1/2", 3/4 1" 11/4" 11/2" 2" 21/2" 3" 4" D Spring ase Dia. inches Face-to-Face A 5# # Threaded Flanged Flanged 33/ 35/ 41/4 43/4 57/ 61/2 1/4 11 13 135/ 17/ 21/4 23/ 21/2 33/ 41/4 41/2 53/4 9 91/2 1/2 3/4 115/ 3/4 211/2 23 D Spring ase Dia. (in.) 5 5 63/4 63/4 63/4 63/4 91/4 91/4 How to Size/Order Flow PRESSURE From the apacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (water, air) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. From the spring range chart, select the spring range that accommodates the required outlet set pressure. Example: Application: 35 GPM of 70 PSIG Water reduced to PSIG Model ode: -14-N-3-V (-Series,1, 5-35 PSIG spring range) A A PA I T I E S Water (GPM); Air (SFM) Inlet Outlet 1/2 Press. Press. Water Air 30 70 0 5 1 0 5 5 15 5 5 25 40 30 30 70 30 0 30 0 5 70 0 5 0 5 5.5 9..0 5.5.5 11.3.0 16..5.0 19.3 15. 11.3 21.0 17.5 13. 24.3 21.5.5 27.5 25.0 17.5.5 2.5 25.0 21.5 30. 2.0 25 4 43 30 6 63 4 9 63 5 95 175 165 135 213 213 140 5 153 325 263 223 403 393 3/4 Water Air 1 14 23 14 30 23 14 35 2 3 32 25 44 39 23 45 32 23 51 45 39 55 45 6 77 54 2 113 6 176 15 113 230 225 171 315 297 243 33 33 252 4 4 369 275 55 473 401 725 707 Inlet/Outlet s (PSIG) 1 Water Air 13 23 19 13 30 27 19 40 30 19 46 3 27 42 33 5 52 30 66 60 42 30 6 60 52 74 67 60 114 2 72 162 1 114 234 2 1 306 300 22 4 396 324 5 5 336 600 600 492 366 70 630 534 966 942 11/4 Water Air 22 39 32 22 45 32 67 32 77 63 45 4 70 55 97 6 1 0 70 114 0 6 3 1 0 190 170 1 270 190 390 3 5 0 30 700 660 540 560 00 00 6 1300 90 16 1570 11/2 Water Air 33 59 4 33 75 6 4 1 75 4 116 95 6 6 5 3 146 9 75 165 1 5 75 171 1 9 15 16 1 25 255 10 405 375 25 55 525 375 765 7 570 990 75 75 40 10 10 30 915 19 1575 1335 2415 2355 21/2 Water Air 2 Water Air 55 9 0 55 5 113 0 16 5 0 193 15 113 2 175 13 243 215 5 275 175 5 25 215 30 20 475 425 300 675 625 475 975 75 625 75 1 9 17 16 13 25 25 1400 0 0 1525 3 2625 2225 4025 3925 Note: For capacities of other gases multiply the air capacities by the following factors: Argon 0.5 156 0 10 26 0 30 252 10 336 20 2 3 344 0 440 400 20 0 456 400 344 492 44 O2 0.1 400 760 60 40 0 00 760 1560 1400 00 40 00 15 200 2640 2160 3400 3400 2240 4000 4000 320 2440 40 3560 6440 620 3 4 Water Air Water Air 132 234 192 132 300 270 192 402 300 192 462 37 270 4 4 330 52 516 300 660 600 4 3000 64 600 516 73 672 600 1140 7 16 10 1140 2340 10 3060 3000 220 40 3960 3240 3360 6000 6000 49 3660 700 6300 5340 9660 94 176 3 256 176 400 360 256 536 400 256 616 4 360 672 560 440 776 6 400 0 00 560 400 9 00 6 94 96 00 15 1360 960 2160 00 15 31 200 00 400 4000 3040 5600 520 43 600 600 440 000 000 6560 40 400 400 71 0 560 Helium 2.69 Nitrogen 1.0 Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 251

455 Series Regulating Valve Model Service Sizes onnections ody Material Seat & Disc Diaphragm Max Inlet Min Inlet Max Differential Min Differential Direct-Operated 455 Series Steam, Air & Other Gases 1/2, 3/4, 1, 11/4, 11/2, 2, 21/2, 3, 4, 5# FLG, # FLG 1/2 11/2 SS ody/rass Stuffing ox 2 4 ast Iron Stainless Steel Neoprene/Nylon PSIG 5 PSIG 5 PSI % of Inlet Design /Temperature Rating PMA/TMA PRESSURE 5# FLG # FLG PSIG 5 PSIG PSIG @ 400 F @ 4 F @ 4 F Typical Applications The 455 Series direct-operated pressure regulatoring valves are used for pressure reduction applications on steam, air and other gases. alanced seat and disc design allows these valves to be used in applications with low inlet pressure; down to 5 PSIG. Unlike pilot-operated valves, the 455 does not contain any small pilot orifices and are therefore less susceptible to issues caused by dirt and pipe scale. The 455-Series is installed using an external sensing line which is connected several feet downstream of the valve. Placing the pressure sensing location out of range of valve discharge turbulence makes it more accurate in controlling downstream pressure. Note: Flange selection may reduce pressure/temperature ratings. Size/onnection Model ody Weight ode * Material lbs STEAM Applications - 455 1/2 455--N-X ronze 15 3/4 455-13-N-X ronze 15 1 455-14-N-X ronze 15 11/4 455-15-N-X ronze 1 11/2 455-16-N-X ronze 1 455-17-N-X ast Iron 75 5# FLG 455-17-F5-X ast Iron 75 # FLG 455-17-F-X ast Iron 75 5# FLG 455-1-F5-X ast Iron 5 # FLG 455-1-F-X ast Iron 5 5# FLG 455-19-F5-X ast Iron 5 2 Features Operates with minimum inlet pressure of 5 PSIG Stainless steel internals Excellent for use in steam systems that contain excessive 21/2 3 amounts of pipe scale and other contaminants balanced valve & seat for more precise control 4 of downstream pressure # FLG 455-19-F-X ast Iron 5 5# FLG 455--F5-X ast Iron 175 # FLG 455--F-X ast Iron 175 X=Spring ode (reference Spring Selection Table). Options & Notes: Must Specify Spring ode when Ordering: 455 Spring Selection Table Use the 455 Spring Selection Table to specify the proper spring(s) based on valve size and reduced pressure range by Replacing the X with Spring ode from chart. Size Example Model odes: 1/2 11/2 1) 455-15-N-65 (455 Series, 11/4, 1-6 PSIG outlet pressure) 2) 455-1-F5-73 (455 Series, 21/2 5# Flanged, 40-70 PSIG outlet pressure) 2 4 252 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Reduced Outlet (PSI) 1-6 5-15 - 45 40-70 60-5 1-6 5-15 - 45 40-70 60-5 Spring ase Dia. (in.) 6 6 6 6 5 13 9 9 7 7 Spring # #5 #3 #2 #1 #1 #4 #4 #3 #3 #2 ode =X 65 63 62 61 51 134 94 93 73 72

455 Series Regulating Valve Sensing Line onnection Direct-Operated DIMENSIONS Size 41/4 41/4 41/ 5 51/4 91/2 1/2" 3/4" 1" 11/4" 11/2" 2" 21/2" 3" 4" Adjustment Knob inches Face-to-Face A 5# Threaded Flanged 3/ 5/ 7/ 1/2 # Flanged 7/ 111/4 115/ 131/ Sensing Line onnection 23/ 23/ 23/ 31/ 33/ 53/4 61/4 71/ 1/4 1/4 1/4 1/4 3/4 11 11/2 13/4 191/4 1/4 1/4 1/4 1/4 1/4 3/ 3/ 3/ 3/ How to Size/Order A Example: Application: 00 lbs/hr of PSIG Steam reduced to 5 PSIG Model ode: 455-16-N-65 (455-Series, 11/2, 1-6 PSIG spring range) A PA I T I E S Steam (lbs/hr); Water (GPM) Inlet Outlet 1/2 3/4 1 Press. Press. Steam Water Steam Water Steam Water 5 30 75 0 5 1 0 2 53 2 95 5 73 0-5 157 5 0-0 145 25 7 0-295 30 245 40 15 0-30 402 327 60 255 0-522 60 455 0 325 0-60 635 70 575 0 4 0-70 7 0 6 5 435 0-0 977 5 0-5 110 4.3 7.1 5.6 9.7 7.9 11.2 7.9 5.6 13.7 11.2 7.9 16..5 9.7 17.7 15. 11.2.2 1.5.5 22.4 17.7.5 25.0 21.7 2.0 95 171 131 23 225 360 261 193 531 441 333 724 59 459 940 19 55 1143 35 756 13 73 1759 1530 24 7..7.1 17.4 14.2.1 14.2.1 24.6.1 14.2 30.2 22.5 17.4 31. 2.5.1 36.3 33.4 22.5 40.2 31. 22.5 45.0 39.0.3 191 342 263 565 4 7 522 35 62 2 666 1447 1177 91 179 163 1170 226 70 15 2700 23 1566 3517 3060 424 15.6 25.0.0 35.0 2.0 40.0 2.0.0 49.0 40.0 2.0 60.0 45.0 35.0 64.0 57.0 40.0 73.0 67.0 45.0 0.0 64.0 45.0 90.0 7.0 1 Flow PRESSURE From the apacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (steam) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. From the spring range chart, select the spring range that accommodates the required outlet set pressure. Inlet/Outlet s (PSIG) 11/4 Steam Water 11/2 Steam Water 276 494 30 16 6 40 754 556 1534 74 962 90 1700 1326 2714 2366 1690 3302 2990 214 3900 312 2262 0 44 6136 403 722 555 1193 9 15 13 2242 162 1406 3055 245 193 3967 345 2470 426 4370 3192 5700 4651 3306 7425 6460 96 22.5 37.0 29.0.0 41.0 5.0 41.0 29.0 71.0 5.0 41.0 7.0 65.0.0 92.0 2.0 5.0 5 96.0 65.0 116 92.0 65.0 130 113 145 2 21/2 3 4 Steam Water Steam Water Steam Water Steam Water 33.0 572 54.0 26 42.0 7 75.0 1696 60.0 13 5.0 2160 60.0 1566 42.0 1156 4 316 5.0 2646 60.0 199 7 4342 95.0 3532 74.0 2754 134 563 1 4914 5.0 35 153 65 141 62 95.0 4536 170 0 134 66 95 469 190 552 165 910 2 744 47.0 76.0 60.0 5 5.0 1 5.0 60.0 14 1 5.0 11 135 5 191 171 1 21 0 135 241 191 135 270 234 302 90 1596 26 263 3360 2436 179 4956 4116 3 6754 5494 424 770 7644 5460 66 9660 7056 600 22 730 16414 1420 1924 73.0 119 94.0 163 133 1 133 94.0 230 1 133 22 2 163 297 266 1 339 311 2 376 297 2 4 364 470 1166 95.0 144 90 156 2660 1606 3 44 3454 213 4396 27 174 30 4400 246 5600 3190 174 4060 2354 3 2996 6490 301 260 5390 247 660 4070 174 510 44 369 156 7194 275 9156 56 213 7140 1144 39 14616 0 34 740 71 246 90 13970 443 1770 6 40 160 9240 275 11760 160 492 0 13464 39 17136 9570 275 10 21494 5 27356 1700 476 2300 25960 615 33040 1 19 157 271 221 313 221 157 33 313 221 470 3 271 495 443 313 564 519 3 626 495 3 700 606 73 Note: Air in SFM (Standard ubic Feet per Minute) = Steam (lbs/hr) x 0.36 Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 253

Regulating Valve 403 Series 403 Series Steam & Air 1/2 4, 1# FLG, 300# FLG Ductile Iron Hardened 4 Stainless Steel (55 Rc) 4 PSIG PSIG PSI 15% of Inlet ( PSI min) Model Service Sizes onnections ody Material Seat & Disc Max Inlet Min Inlet Max Differential Min Differential Design /Temperature Rating PMA/TMA PRESSURE 1# FLG 300# FLG 4 PSIG @ 6 F 1 PSIG @ 566 F 4 PSIG @ 6 F Typical Applications Features & Options The 403 Series pilot-operated (piston-actuated) pressure regulating valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate downstream pressure regardless of fluctuations in supply pressure or usage. These regulators can be supplied with an optional internal sensing line which simplifies installation. Piston-actuated regulators are more compact than Diaphragm-actuated regulators. The 403 Series contains all stainless steel internals for high-pressure applications up to 4 PSIG. The Double-Spring option is available for a wider range of reduced pressures. Pilot-operated regulators minimize outlet pressure fluctuations even when load varies Internal Sensing option (If requested, the regulator can be modified to internally sense pressure, eliminating the need for an external sensing line) Ductile Iron body to handle increased pressure and temperature Hardened stainless steel seat and disc (55 Rc) Reducing Station with External Sensing Line Reducing Station with Internal Sensing Line External Sensing (standard) (requires sensing line) Internal Sensing Option (Specially drilled internal sensing path eliminates the need for an external sensing line) External Sensing Line Reduced Outlet Inlet Inlet Steam Inlet Steam Inlet 403 Series Regulator 254 Reduced Outlet www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 403 Series Regulator

Regulating Valve 403 Series Adjustment Screw Pilot Spring Pilot Diaphragm Pilot Strainer Prevents dirt and scale from entering pilot Pilot Seat & Disc PRESSURE Actuator Piston High-performance piston rings minimize friction for increased accuracy Hardened Stainless Steel Trim for Extended Service Life Lower Stem Guide for greater stability DIMENSIONS Size 1/2" 3/4" 1" 11/4" 11/2" 2" 21/2" 3" 4" Flow inches Face-to-Face A 1# Threaded Flanged 41/2 41/2 41/2 3/16 3/16 3/4 1/4 91/ 93/4 131/2 300# Flanged 3/4 93/4 1/2 14 enterline to Top Single Double Spring Spring 3/4 3/4 13 133/4 143/4 16 143/ 143/ 143/ 151/ 151/ 153/ 161/ 161/ 13/ Overall Height Single Double Spring Spring 143/ 143/ 143/ 161/ 161/ 171/ 11/4 193/4 24 163/4 163/4 163/4 11/2 11/2 191/2 5/ 221/ 263/ A Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 255

Regulating Valve 403 Series How to Size/Order From the apacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (steam, air) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. From the spring range chart, select the spring range that accommodates the required outlet set pressure. Specify Internal or External (remote) sensing. Example: Application:,0 lbs/hr of 300 PSIG Steam reduced to 5 PSIG Model ode: 403-17-N-00-R (2 403 Series Valve, 0-0 PSIG spring range, with external sensing Note: Flange selection may reduce pressure/temperature ratings. PRESSURE Size/onnection Model ode * Weight lbs REMOTE Sensing - Requires External Sensing Line 1/2 403--N-X-R 3/4 403-13-N-X-R 1 403-14-N-X-R 11/4 403-15-N-X-R 37 11/2 403-16-N-X-R 3 403-17-N-X-R 54 1# FLG 403-17-F1-X-R 54 2 21/2 3 4 403-17-F300-X-R 56 403-1-F1-X-R 66 0 to #13 0013 lue & yellow 403-1-F300-X-R 69 to #14 0014 lack & yellow 1# FLG 403-19-F1-X-R 40 to 0 #9 0009 Red & yellow 300# FLG 403-19-F300-X-R 96 0 to 0 # 00 Green & blue 1# FLG 403--F1-X-R 174 300# FLG 403--F300-X-R 12 Red & yellow lack & yellow Red & yellow Green & blue 3/4 403-13-N-X-I 1 403-14-N-X-I 11/4 403-15-N-X-I 37 11/2 403-16-N-X-I 3 403-17-N-X-I 54 1# FLG 403-17-F1-X-I 54 DOULE Spring Ranges 30 to 5 #14 & #9 1409 to 0 #9 & # 09 Note: For 0-20 PSI use ellville washers (ode = 0015) Notes: Must Specify Spring ode when Ordering: Use the 403 Spring Selection Table to specify the proper spring(s) based on reduced pressure range by Replacing the X with Spring ode from chart. 300# FLG 403-17-F300-X-I 56 Internal Sensing 1# FLG 403-1-F1-X-I 66 300# FLG 403-1-F300-X-I 69 1# FLG 403-19-F1-X-I Sensing odes: ode R - Remote Sensing ode I - Internal Sensing (not available with 0- PSI range) 300# FLG 403-19-F300-X-I 96 1# FLG 403--F1-X-I 174 Example Model ode: 12 1) 403-15-N-0014-R 300# FLG 403--F300-X-I X = Spring ode (reference Spring Selection Table). 256 olor 1# FLG 403--N-X-I 4 ode =X 300# FLG 3 Spring # 300# FLG 1/2 21/2 Reduced Outlet PSI SINGLE Spring Ranges INTERNAL Sensing - No Sensing Line Required 2 403 Spring Selection Table www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 (403 Series, 11/4, - PSI, Remote Sensing)

Regulating Valve A PA I T I E S 30 0 5 300 400 4 Steam Air 11/2 Steam Air 2 Steam Air 21/2 Steam Air Steam Air Steam Air 1309 1925 1463 249 2541 2 4697 3311 6314 5929 4900 7546 564 70 9604 19306 1736 740 246 22540 1666 24 162 3626 3234 646 597 4214 036 7546 3 4 0-0- 0-30 0-60 0 0-60 70 175 270 3 35 343 690 637 455 65 05 60 67 130 116 231 214 151 27 270 425 655 493 935 33 1675 1547 15 1955 145 213 162 315 21 561 519 366 697 655 600 924 696 13 1176 2364 214 1560 2964 2760 4 300 22 444 396 792 732 516 94 924 1309 96 170 1666 3349 3094 22 4199 39 29 425 323 629 561 12 37 731 1394 1309 1300 02 1 260 254 52 4732 330 6422 590 442 6 494 962 5 1716 156 111 2132 02 27 4235 3190 60 5390 35 0 71 1355 6 935 1375 45 35 115 3630 3355 2365 45 4235 3 5929 4466 470 7546 15169 14014 0 19019 177 0 0-70 0 5 0-0 1 175 0-5 175 0 5 19 5 609 1337 01 739 1652 135 113 196 343 27 214 445 333 245 5 452 37 142 2474 3 1479 3247 2431 1794 40 329 2763 476 33 697 519 0 0 595 1335 97 91 16 3492 2940 454 3432 2532 5664 4656 3900 672 1176 94 732 1524 1140 40 14 154 96 256 4947 4165 295 6494 462 357 024 6596 5525 952 1666 1394 37 2159 1615 1190 2669 2193 136 436 7566 6370 4524 9932 7436 546 272 0 4 1456 254 2132 156 3302 2470 1 402 3354 20 9240 16005 13475 9570 2 15730 11605 25960 21340 1775 300 5390 45 3355 695 5225 3 635 7095 5940 936 43 16464 54 22407 7546 251 9604 165 6314 240 036 1339 4697 17052 597 29414 9779 37436 446 222 7315 202 93 16247 5390 67 660 36344 19 46256 1536 2976 9933 3024 642 25 316 31 54 0-1 0 0-0 20 16 16 1 2657 2146 665 665 417 75 711 496 496 3035 6452 5211 1615 1615 25 1726 69 69 424 9 7356 220 220 142 3000 2436 9792 9792 6069 903 421 3230 3230 23 4 3451 14976 14976 922 19734 1593 4940 4940 3094 60 527 3160 3160 19635 41745 33715 4 4 6545 137 11165 44352 44352 2749 5443 471 0-225 20 2975 2975 94 94 7225 7225 239 239 0 0 3372 3372 144 144 4777 4777 2 2 7306 7306 467 15455 654 21637 3300 2753 467 15455 654 21637 3300 2753 Note: For capacities of other gases multiply the air capacities by the following factors: Argon 0.5 O2 0.1 Helium 2.69 14630 14630 9163 19 15631 5644 5644 3496 7432 60074 0 Inlet/Outlet s (PSIG) 11/4 Steam Air 1 PRESSURE 1 Steam (lbs/hr); Air (SFM) Inlet Outlet 1/2, 3/4 Press. Press. Steam Air 403 Series 16 16 11662 240 1994 Nitrogen 1.02 Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 257

Relief & ack Valves Model Service Sizes onnections ody Seat Material Disc Material Max Inlet R Series Liquids 1/2 3 ronze ronze Stainless Steel (1/2 11/2 ) ronze (2 3 ) 300 PSIG R & 691 Series 691 Series* Liquids 1/2, 3/4, 1 ronze ronze EPDM* Optional Viton or Teflon 300 PSIG * 691-Series Relief Valves use a soft elastomeric disc for tight shut-off. Available in 1/2, 3/4 & 1 sizes only. Design /Temperature Rating PMA/TMA PRESSURE 300 PSIG @ 10 F Description The R-Series & the 691-Series ack & Relief Valves relieve upstream pressure in a variety of processes. R-Series has a stainless steel disc and the 691-Series has a soft elastomeric disc for tight shut-off. These valves automatically maintain desired maximum pressure in a vessel or system by relieving excess pressure into lower pressure return line or to atmosphere. Ideally suited for use as pump bypass control valve by maintaining constant pump discharge pressures. Used as a continuously operating valve or for protection against intermittent overpressure conditions. ap Adjustment screw Gasket Lock nut Spring NOT TO E USED ON STEAM. Typical Applications The R-Series & 691 Series ack Relief Valves are used in the following applications: Water pump bypass for irrigation, sprinkler systems on golf courses, fountains and fire protection systems Fuel oil pump bypass on commercial systems or large residential systems Note: Outlet Model 691 has a Soft Disc which allows for lass VI bubble tight shut-off Seat Inlet Not to be used as a safety relief valve on steam systems. 1/2 1 691-Series Features & Options Four Springs easily interchanged to cover pressures from 1 to 300 PSIG Heavy-duty bronze valve body 691 Series has EPDM Seat for tight shut-off (1/2-1 ) 25 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Adjustments To adjust set pressure of valve, remove top cap, loosen lock nut and adjust pressure by rotating adjustment screw. Rotating the screw clockwise increases the compression on the spring thereby increasing the set pressure. Rotating the screw counterclockwise lowers the set pressure. Tighten the lock nut and replace top cap and gasket.

Relief & ack Valves R & 691 Series DIMENSIONS & WEIGHTS D D Size 1/2" 3/4" 1" 11/4" 11/2" 2" 3" 11/ 13/ 15/ 17/ 23/16 21/2 31/2 11/2 13/4 21/4 21/2 23/4 35/16 43/4 inches D 35/ 51/2 6 59/16 65/ 73/ 97/ Weight (lbs) 1.5 2 3 6 25 Note: Model 691 available only in sizes 1/2 thru 1. 1/2 11/2 2 & 3 R-Series R-Series Spring # Spring olor 1-6 #4* yellow 5-35 #3 silver 25-0 #2 blue 75-300 #1 red Relief (PSI) PRESSURE Flow Flow Spring Selection Table * 1/2 11/2 R-Series type only. Not available on 2 & 3 models. How it Works The Relief Valve is actuated by the system pressure on the inlet side of the valve. Valve loading is provided by a spring. The adjustment is done by removing the cap and rotating the screw clockwise or counter-clockwise. Spring load balances against the opening force of the upstream (or relief) pressure. Valve will open at the slightest increase in pressure above the spring set point, and will close when the excess pressure has been relieved. The higher the system pressure is above the relief set point pressure, the more flow the valve will pass. It is therefore typical to specify the maximum capacity of a back pressure relief valve at % and % over set pressure. Protection Against Over-pressure ondition To Tank or Suction Side of Pump (Relief or bypass flow) Outlet R-Series or 691 Relief or ypass Flow Discharge Inlet Pump ypass flow occurs when the discharge pressure exceeds the relief valve set point pressure System Flow R-Series or 691 Outlet Inlet Discharge Pump Inlet A Relief Valve allows water to recirculate through the pump even when the discharge valve on the pump is completely closed. As a rule, a minimum of % of the pump capacity must recirculate to prevent overheating of the pumped liquid. Pressurized System (liquid) System Flow Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 259

Relief & ack Valves Water, Oil & Other Liquids Model ode 691 Series EPDM Disc Relief Range (PSI) Weight lbs 1/2 R--N-4 R--N-3 R--N-2 R--N-1 NA 691--N-3-E 691--N-2-E 691--N-1-E 1-6 5-35 25-0 75-300 1.5 1.5 1.5 1.5 3/4 R-13-N-4 R-13-N-3 R-13-N-2 R-13-N-1 NA 691-13-N-3-E 691-13-N-2-E 691-13-N-1-E 1-6 5-35 25-0 75-300 2.5 2.5 2.5 2.5 1 R-14-N-4 R-14-N-3 R-14-N-2 R-14-N-1 NA 691-14-N-3-E 691-14-N-2-E 691-14-N-1-E 1-6 5-35 25-0 75-300 3.3 3.3 3.3 3.3 11/4 R-15-N-4 R-15-N-3 R-15-N-2 R-15-N-1 1-6 5-35 25-0 75-300 4.5 4.5 4.5 4.5 11/2 R-16-N-4 R-16-N-3 R-16-N-2 R-16-N-1 1-6 5-35 25-0 75-300 6.3 6.3 6.3 6.3 2 R-17-N-3 R-17-N-2 R-17-N-1 5-35 25-0 75-300.3.3.3 3 R-19-N-3 R-19-N-2 R-19-N-1 5-35 25-0 75-300 25.0 25.0 25.0 R-Series Example Model ode with Set- Option: R--N-2, Set at PSI (R Series, 1/2, 25-0 PSIG Spring Range, with a Factory Set Relief of PSIG) 691 Example Model ode with Set- Option: 691-14-N-2-E, Set at 75 PSI (691 Series, 1, 25-0 PSIG Spring Range, EPDM disc, with a Factory Set Relief of 75 PSIG) Model ode R-Series Size/ onnection Options & Notes: Factory Setting of Relief Option: Specify Set- when ordering. Add desired factory set pressure to the end of the model code. See Example below: PRESSURE R & 691 Series 691-Series Disc Material: standard in EPDM (Sufffix ode E) Also available in: Teflon (Sufffix ode T) & Viton (Sufffix ode V) The Relief Valve remains closed until the Set- is reached. When the Set-Pressue is met or exceeded, the spring will compress, allowing the valve to open and flow to occur. It is standard practice to publish flow values at % and % over the Set-. Example: A 1 valve set at PSIG will pass 3.1 GPM if the system pressure exceeds the set point by %. The R Series & 691 Relief Valve water capacities at inlet pressures of % and % over Set-: APAITIES Water (GPM) At % Over Set Spring Range 1-6 5-35 5-35 25-0 25-0 75-300 75-300 Set (PSIG) 3 75 0 0 1/2 (PSIG) 1.2 0.3 0.6 1.0 1.4 1.9 3.4 1-6 5-35 5-35 25-0 25-0 75-300 75-300 3 75 0 0 2.2 0.6 1.4 1. 2.3 3.6 6.5 3/4 1 11/4 11/2 2 3 2.2 0.4 0.7 1.3 1.9 2.5 4.4 3.2 0.4 0. 1.6 2.3 3.2 5. 4.3 0.5 1.0 1. 2. 3. 6.9 5.4 0.5 1.1 2.2 3.4 4.6.2 0.6 1.3 2.6 4.0 5.4 9.7 0.7 1.6 3.2 5.0 6.9.3 5. 1.3 3.0 3. 4. 6.3 11.2 7.1 1.4 3.4 4.4 5.6 7.0.4 1. 4.1 5.4 6.9 7.3 13.1 2.2 4. 6.4.1.9 16.0 At % Over Set 260 3.4 0. 1.9 2.0 3.2 4.2 7.6 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 4.6 1.1 2.4 3.1 4.0 5.0 9.0

Relief & ack Valves 3040 Series Water, Air, Oil & Other Liquids 3040 Series Model Service Water, Oil, other Liquids, Air Sizes 1/2, 3/4, 1, 11/4, 11/2, 2 onnections ody Material, 5# FLG, # FLG 1/2 11/2, SS ody, ronze Diaphragm hamber 2, ast Iron ody 2 FLG, ast Iron ody Seat Material Stainless Steel Disc Material Viton - 300ºF max Diaphragm Viton - 300ºF max Max Inlet PSIG Design /Temperature Rating PMA/TMA 300 PSIG @ 0 F 5 PSIG @ 0 F PSIG @ 0 F PRESSURE 5# FLG # FLG Typical Applications The 3040 Series ack Valves relieve upstream pressure in a variety of processes. Automatically maintains desired maximum pressure in a vessel or system by relieving excess pressure into lower pressure return line or to atmosphere. Ideally suited for use as pump bypass control valve by maintaining constant pump discharge pressures. Used as a continuously operating valve or for intermittent protection against over-pressure conditions. Adjustment screw Features & Options Spring Lock nut Fast response Viton Trim for 300 F service Soft Seat for tight shut-off Diaphragm Adjustments Rotating the adjustment screw clockwise increases the compression on the spring, thereby increasing the set-pressure. Rotating the adjustment screw counter-clockwise lowers the set-pressure. Tighten the locknut after adjustment. Disc Inlet Outlet Seat Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 261

Relief & ack Regulating Valve 3040 Series Water, Air, Oil & Other Liquids DIMENSIONS inches Face-to-Face A 5# Flanged Flanged Size Threaded 41/ 41/ 41/ 413/16 53/16 91/2 PRESSURE 1/2" 3/4" 1" 11/4" 11/2" 2" 3/ 25/16 25/16 25/16 31/4 31/2 51/2 9 9 9 3/4 131/4 163/4 # 7/ Flow A How it Works The 3040 Series ack Valve senses upstream pressure acting on the underside of the diaphragm through a port in the bottom diaphragm case. An increase in the upstream pressure above the set point will compress the spring and allow the valve to open. The spring will close the valve as the upstream pressure decreases to the set-point. The higher the system pressurizes above the relief set-point pressure, the more flow the valve will pass. It is therefore typical to specify the maximum capacity of a back pressure relief valve at % & % over set-pressure. Protection Against Over- ondition 3040 Series To Tank or Suction Side of Pump (Relief or bypass flow) Outlet Inlet Pump Discharge System Flow Pump Inlet A Relief Valve allows water to recirculate through the pump even when the discharge valve on the pump is completely closed. As a rule, a minimum of % of the pump capacity must recirculate to prevent overheating of the pumped liquid. 262 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 3040 Series Discharge Relief or ypass Flow ypass flow occurs when the discharge pressure exceeds the relief valve set point pressure Pressurized System (air or liquid) System Flow

Relief & ack Regulating Valve 3040 Series Water, Air, Oil & Other Liquids Size/onnection Model ode * ody Material Weight lbs Viton Diaphragm & Disc (300 F Max) 3040 Series Spring Selection Table 1/2 3040--N-X-V ronze 3/4 3040-13-N-X-V ronze Relief (PSI) Spring # ode =X 1 3040-14-N-X-V ronze 9 11/4 3040-15-N-X-V ronze 15 1 - #4 4 11/2 5-35 #3 3-70 #2 2 40-5 #1 1 2 Note: Relief 1- PSI (ode 4) available in 1/2, 3/4, and 1 sizes only. 3040-16-N-X-V ronze 16 3040-17-N-X-V ast Iron 4 5# FLG 3040-17-F5-X-V ast Iron 53 # FLG 3040-17-F-X-V ast Iron 56 X=Spring ode. (reference Spring Selection Table) Example Model ode: PRESSURE 1) 3040-15-N-3-V (3040 Series, 11/4, 5-35 PSIG Relief ) Note: The Relief Valve remains closed until the Set- is reached. When the Set- is met or exceeded, the spring will compress, allowing the valve to open and flow to occur. It is standard practice to publish flow values at % and % over the Set-. Example: A 1 valve set at PSIG will pass 35.6 GPM of water or 409 SFM of air if the system pressure exceeds the set-point by %. The 3040 Series Relief Valve water and air capacities at inlet pressures of % and % over Set-: APAITIES APAITIES Air (SFM) At % Over Set Water (GPM) At % Over Set Spring Range (PSIG) Set (PSIG) 1/2 3/4 1 11/4 11/2 2 1/2 3/4 1 11/4 11/2 2 1-5-35 5-35 -70 40-5 40-5 40-5 5 75 0 5 4.0 5.7.1.7 15.6 1.0.0 11.4 16.2 25.4 31.2 36.0 40.0 14.3.3 31. 39.0 45.0 29 41 64 7 90 0 43 61 95 117 135 1 71 1 159 195 225 31 39 56 6 14 190 231 55 70 0 191 266 341 416 111 141 1 31 532 62 33 3 290 551 76 96 13 297 424 05 13 1441 175 422 603 1144 1596 47 2499 At % Over Set At % Over Set 1-5-35 5-35 -70 5 4.4 6.3.9 14.0..5 17. 27.0 11.2 16.0 22.7 35.6 32 45 71 47 67 5 79 113 177 32 57 113 41 59 114 73 6 4 146 2 409 211 306 591 30 447 63 43 635 26 40-5 40-5 40-5 75 0 5 17.2 19. 22 34.3 39.6 44 43.7.4 56 7 1 1 9 149 166 217 27 159 5 27 369 451 573 737 901 2 65 1302 1556 1903 1719 22 2704 Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 263

264 TEMPERATURE

Direct-Operated Temperature TEMPERATURE www.watsonmcdaniel.com 42 Jones oulevard Limerick Airport usiness enter Pottstown PA 19464 Tel: 6-495-5131 265

Direct-Operated TEMPERATURE Temperature Introduction W91 Non-Indicating W94 Indicating - Dial Thermometer For Heating with Steam for ooling with Water Mixing/Diverting for Liquids Description & Selection The W91/W94 Self-Operating Temperature Regulator is a mechanically operated device designed to regulate system temperature by modulating the flow of a heating or cooling fluid in response to temperature changes; requires no external power source. They are recommended for controlling temperature on relatively stable systems, where small valve stroke modulations will correct temperature drift. Where sudden or large load changes, or rapid temperature changes occur, a pneumatically-actuated ontrol Valve should be considered. Please consult the ontrol Valve Section of this catalog. Indicating Dial Actuator Principle of Operation TEMPERATURE W94 (with Indicating Dial) The W91/W94 Temperature Regulator is a fully self-contained unit requiring no external power source (i.e., compressed air or electricity). Regulation takes place when the sensing element (bulb) of the thermal system is exposed to changes in temperature. The thermal system is charged with a predetermined amount of vapor fill, which, when heated, will cause the bellows within the unit s actuator housing to expand. The valve action is either In-To-lose for Heating or In-To-Open for ooling. apillary Thermal System Sensing ulb Valve ody Normally Open Valves are used for HEATING, so the valve stem closes (in-to-close) as the control signal (temperature) increases. HEATING Normally Open FLOW (in-to-close) Single-Seated alanced Valves are used for Heating Applications (normally steam) where tighter shut-off is required. Leakage rate is approximately 0.01% of the maximum capacity (lass IV shut-off). OOLING Normally losed Normally losed Valves are used for OOLING, so the valve stem opens (in-to-open) as the control signal (temperature) increases. (in-to-open) Double-Seated alanced Valves are used for ooling Applications where larger flow rates of water are frequently required, and a small leakage rate through the valve is normally acceptable. Leakage rate can be up to 0.5% of the maximum valve capacity (lass II shut-off). FLOW MIXING & DIVERTING 3-Way Valves UPPER PORT () LOWER PORT () 3-Way Valves are used for mixing two flows together, or for diverting a flow to or around a device (bypass). In order to produce consistent flow quantity for stable operation, the pressure drop across both flow paths (inlet to outlet) must be nearly equal. The Sleeve-Type (common port on the bottom) is most commonly used for diverting applications; however, due to its design, it can also be used for mixing applications (NOT for steam use). It is also suitable for water or glycol type service, up to a maximum temperature of 300 F. A higher temperature O-ring for use with other fluids, such as oil, or for temperatures up to 4 F, is available. onsult factory. OMMON PORT (A) 266 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

Direct-Operated TEMPERATURE Inverted ucket Temperature Introduction HEATING OOLING Regulating Temperature of a Plating or Finishing Tank Using Water to ool Engine Valve ody determines the action of the Regulator For Heating: use Normally Open Valve ody (in-to-close) Valve ody determines the action of the Regulator For ooling: use Normally losed Valve ody (in-to-open) W94 W94 ooling Water Inlet Steam Supply Temperature Sensing ulb Engine that requires ooling TEMPERATURE Temperature Sensing ulb Water Outlet F&T Trap omponents of a Self-Operated Temperature Regulator Model W91 Actuator is Non-indicating (without temperature indicating dial). Model W94 Actuator is equipped with an integral dial thermometer to indicate sensing bulb temperature. The W94 displays the temperature at the sensing bulb. This allows for easy adjustment of the temperature set-point, as well as continuous monitoring of the application, without the installation of an additional thermometer. The thermometer has a 31/2" diameter dial face and can be rotated and tilted for maximum readability. The Sensing ulb and apillary are available in either opper (for best heat transfer) or Stainless Steel (for corrosive applications). The capillary tubing is protected by stainless steel flexible armor to resist damage during handling and installation. The sensing bulb is also available with an optional Teflon or Kynar coating; used for special corrosive applications such as plating tanks where stainless steel may not be acceptable. apillary lengths up to 24 feet are considered standard; non-standard lengths up to 52 feet are available. Longer capillary lengths require longer bulb length to contain the additional actuating fluid required (see selection chart). Valve ody Single-seated balanced valves are used on heating applications (most commonly steam) where tight shut-off is required. Double-seated valves are used on cooling applications because of the high flow rates often required. The balanced double-seated design also allows the temperature actuator to operate with higher differential pressures than would be possible using single-seated non-balanced valves. 3-way valves are used for mixing and diverting applications. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 267

Direct-Operated TEMPERATURE Introduction Design & Operation Temperature ellows Housing Assembly (Die-ast Aluminum) Return Spring Overheat Protection Spring Temperature Adjustment Screw Stainless Steel Valve Plug Packing Ring TEMPERATURE ompression Spring Seat Packing Spring-loaded Teflon V-Ring Packing Valve Trim razed-in Stainless Steel Seats eliminate potential leak path between seat & body (requires no adjustment) Inlet Outlet Double-seated valve shown used for ooling applications Valve ody Types (Valve body shown with) Integral Union - onnection Simplifies Installation & Removal Single-Seated - for Heating Double-Seated - for ooling 3-Way - for Mixing & Diverting Actuator Housing Assembly The housing consists of a cap and yoke constructed from precision die cast aluminum. This assembly ensures permanent alignment with the valve body, while protecting the bellows assembly. The yoke includes a set-point scale used to reference the setting of the temperature adjustment screw. The entire housing is finished in a corrosion resistant, baked grey epoxy. Actuator ellows & Spring Return Assembly The accordion type bellows is corrosion resistant to provide accurate response for the life of the regulator. An adjusting bar is provided to turn the brass temperature adjustment screw, which compresses or expands the range adjustment spring, thereby setting the control-point of the unit. Valve ody & onnection Type W91/W94 Temperature available with connection, Integral Union (with connection) and Flanged. Valve Trim Valve Trim is composed of the plug and seat(s). Single and double-seated valves employ a stainless steel, tapered plug for enhanced modulation. The valve plug is both top and bottom guided to ensure positive seating alignment. 3-Way valves use a stainless steel sleeve and brass seating surface to change flow direction within the body. Packing Valves feature a self-energizing (spring-loaded) Teflon V-Ring packing, which reduces leakage around the valve stem. V-Ring packing is spring loaded to maintain proper compression and does not require manual adjustment. 26 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

Direct-Operated TEMPERATURE Introduction Design & Operation Inverted ucket Temperature Temperature Sensing ulb & Thermowells Sensing ulb Sensing ulb Installation 1 Union Hub are must be taken to ensure that the entire length of the sensing bulb is immersed into the medium at the sensing location. Partial immersion of sensing bulb in the process fluid can result in faulty control. The sensing bulb is designed to be installed in either a horizontal or vertical orientation (with the tip down). If the tip must be installed upwards, please specify when ordering, as a special bulb construction is required. The sensing bulb material is available in either copper (best heat transfer) or stainless steel (corrosion resistant) and must be compatible with the process fluid, or an optional thermowell can be used for complete isolation of the sensing bulb from the process fluid. First insert threaded Union Hub into side of tank (or pipe) & fully tighten. Union Nut Sensing ulb Sensing ulb is inserted through union hub and is in direct contact with fluid. Installed in Pipe Line: Drawing shows Sensing ulb installed in a 1 pipe fitting. 11/4 is minimum pipe size for adequate clearance around sensing bulb. TEMPERATURE 11/4 Pipe Liquid level must be lowered below sensing bulb insertion point for installation or removal. Sensing ulb with Thermowell Thermowell (isolates sensing bulb from process fluid) Thermowells isolate the sensing bulb from the process fluid. For applications in which the process media may be corrosive or contained under excessive pressure, the use of a thermowell is required to prevent damage to the sensing bulb. A thermowell also allows the removal of the sensing bulb without having to drain liquid from the system. Thermowells are available in either brass (best heat transfer) or stainless steel (for corrosive applications). The 11/4 hub of the thermowell can be installed into the side of a tank or female pipe connection, depending on the application. Three different length thermowells are available to match sensing bulb lengths. To ensure minimum response time, Heat Transfer Paste (supplied with thermowell) should be applied to the sensing bulb prior to installation. Thermowell remains installed into tank or pipeline; therefore, liquid does not require draining when replacing sensing bulb. 11/4 Thermowell Thermowell threaded into tank wall Union Nut Thermowell remains in place during installation or removal of bulb Sensing ulb Inserted into Thermowell Removing Sensing ulb from Thermowell Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 269

Direct-Operated TEMPERATURE Introduction Temperature Typical Applications for Temperature for Heating & ooling Temperature Range Nominal ranges from F (- ) through 440 F (225 ) are available. The nominal range defines the entire temperature range of the unit. The service conditions and choice of valve style and action will determine the actual operating range (recommended working span) of the unit. Using the valve in the recommended working span improves temperature response time of the system. The nominal range should be selected so that the set-point falls within the recommended working span for the specified valve style and action. They include an over-range protection spring, which allows the sensing bulb to be heated 0 F above the upper limit of the unit s nominal range for system cleaning or temporary situations. Accuracy TEMPERATURE The W91/W94 Temperature Regulator is a set-and-forget regulating device. Once the proper control-point setting has been achieved, the unit requires virtually no adjustments and very little maintenance. ontrol-point accuracy is dependent upon the sensing bulb location, load change size and speed, and valve size. The sensing bulb must be installed in an area within the process that is most representative of overall process conditions. are should be taken not to locate the bulb in close proximity to the valve, as the regulator might respond to temperature changes before the process has had time to reach the control-point. Where sudden or large load changes occur, a pneumatically or electrically-powered ontrol Valve should be specified. onsult the ontrol Valves section of this catalog. Valve sizing also plays a major part in regulator performance. A valve that is too small will not be able to provide the desired capacity during peak load conditions, while a valve that is too large may overshoot the control-point and operate with the valve plug too close to the seat, resulting in undue wear of the plug and seat. As part of a well-designed system, a properly sized valve (operating in the 60-90% open position) can control to within 2 to 5 F. Size The proper sizing of a regulating valve is one of the most important factors in its selection. A valve that is too small will not be able to provide the desired capacity during peak load conditions, while a valve that is too large may overshoot the control-point and operate with the valve plug too close to the seat, resulting in premature wear of the plug and seat. The valve coefficient (v) is used to determine the maximum capacity of a valve. From this value, a valve body with the appropriate port size can be selected. Port sizes from 1/" through 4" and connection sizes from 1/2" through 4" are available. onsult the Valve Selection section of this catalog. lose-off Temperature are not considered shut-off valves. A pressure surge may force a single-seated valve plug open. The W91/W94 Temperature Regulator is a balanced equilibrium system and may not provide the force necessary to tightly seat the valve plug. A separate power-driven or hand-actuated valve is required to ensure tight shut-off when necessary. W94 Heating Fuel Oil to Proper Temperature W94 Elevating Temperature of a Plating or Finishing Tank When the Sensing ulb is mounted remotely from the actual point of heating (as shown) the irculation Pump MUST continue to run so that the sensing bulb can sample the product temperature in the heat exchanger. Without product circulation, the temperature control valve will never shut off and the oil will be overheated Sensing bulb should be properly placed inside tank for best temperature consistency. An optional Thermowell (Stainless Steel or rass) may slightly reduce temperature sensitivity. However, it will isolate sensing bulb and allow for its removal without draining the tank. W94 W94 Temperature Sensing ulb Steam Supply Steam Supply ypass Heat Exchanger Oil Flow Pump 270 Fuel Oil Storage Tank F&T Trap www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 Temperature Sensing ulb F&T Trap

Direct-Operated TEMPERATURE Introduction Inverted ucket Temperature Temperature Typical Applications for Temperature for Heating & ooling W94 Used in a Drying Oven Application W94 Heating oil Steam Exhaust Air old Outside Air Fan Sensing ulb Air Flow (heated) TEMPERATURE Drying Oven W94 Valve used to regulate the temperature of the air flow through an air heating duct. The sensing bulb is installed toward the end of the heating duct and will sense the temperature of the air flowing past the heating coils. When air temperature is below the set point, the valve will open to allow more steam through to the coils to heat the air passing through the duct. Once the desired air temperature is achieved, the valve will begin to modulate closed to maintain the air temperature. onveyor W91 Used to Reduce Oil Temperature In a Heat Exchanger W91 Used to ontrol Water Flow to Air ompressor for ooling Purposes Temperature Sensing ulb W91 ooling Water Inlet Hot Oil Inlet Heat Exchanger Oil ooler Water Outlet (Increased temperature) Oil Outlet (Reduced temperature) Water Outlet (Increased temperature) old Water Inlet W91 Water Flow Temperature Sensing ulb ontinuous bypass line W91 ooling valve controlling the flow of water through a heat exchanger to maintain the temperature of oil that is gaining heat by some process. The valve automatically shuts off when not required, greatly reducing cooling water usage. The source of the cooling water may be a well or city water supply and it can be circulated or dumped to drain. A 3-way valve may be used on cold water chiller systems so flow can be diverted from going through the heat exchanger when not required. When the Sensing ulb is mounted remotely from the actual point of ooling (as shown), the water MUST continue to flow so that the sensing bulb can sample the product temperature of the unit being cooled. Without continuous water flow, the temperature control valve will never turn on, causing the unit to overheat. The bypass line provides a minimum continuous flow when temperature set point is achieved and the valve is closed. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 271

Direct-Operated Temperature W91/W94 Series For Heating & ooling W94 Model Service Sizes onnections ody Material TEMPERATURE Seat Material Max Inlet W91 (no Indicating Dial) W91 (No Indicating Dial) W94 (Temperature Indicating Dial) Water, Steam, Other Liquids 1/2 4 Threaded, Union Ends, 5# FLG # FLG (optional) 1/2 11/2 ronze/stainless Steel 2 ast Iron (Direct-acting) 2 ronze (Reverse-acting) 21/2 4 ast Iron Stainless Steel PSIG Typical Applications Specifications The W91 & W94 Self-Operating Temperature are the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. They require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The Actuator is noted for its rugged die-cast aluminum housing, fully-enclosed bellows assembly and internal over-temperature range protection. Dial Thermometer: 31/2" dial, stainless steel case, swivel and angle adjustment (Model W94 only) Housing: Die-cast aluminum, epoxy powder coated grey finish ellows: High-pressure brass, corrosion resistant, tin plated finish Temperature Over-range Protection: Protects Thermal System from damage up to 0 F over high limit of range Model W91 Non-Indicating (without indicating dial) features a lower profile and should be specified where space constraints may be an issue. Model W94 Temperature Indicating (with indicating dial) will allow the operator to verify the process temperature and to aid in temperature adjustment. Temperature Regulator Valve Action Features Self-Operating (no external power source required) Temperature Indicating & Non-Indicating models available Heavy Duty Die-ast Aluminum Housing 1/2" thru 4" Valve Sizes Fully Enclosed ellows Temperature Over-range protection spring to protect Application Stem Action Normal (Fail) Position Heating In-To-lose Normally Open ooling In-To-Open Normally losed How to write proper model number: Explanation of Model Number: W91 06 0 Model ap. ulb Length Type Model Number: W91-06-0-S15-H13N thermal system Temp. Range S15 H13N Valve ody Model ode onfiguration Models Temperature Range apillary Length Sensing ulb Valve ody Selection W91 Non-Indicating W94 Indicating Dial 01 14 0 16 24 S15 rass bulb (standard) Refer to Valve ody Section Refer to Temperature Range hart Feet (standard) Feet 16 Feet Feet 24 Feet S16 Stainless bulb Note: Thermowells are ordered separately. See Thermowell & ulb onnections page. 272 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 (Omit this selection if purchasing Actuator only)

Direct-Operated Temperature W91/W94 Series Temperature Range Selection For Heating & ooling W94 Temperature Indicating Actuator W91 Non-Indicating Actuator Ø 3.67 [93] 4.92 [5] Ø 3.63 [92] 9.00 [22] 9.00 [22] TEMPERATURE Dimensions: inches [mm] Actuator Weight: 6 lbs. Description of Working Span The recommended working span typically falls within the upper third of the nominal range. Single-Seat In-To-lose, all Double-Seat, and all 3-Way valves have a recommended working span in this part of the nominal range. Using the valve in the recommended working span improves temperature response time of the system. Temperature Range hart W91 & W94 Actuators Range ode Nominal Range Recommended Working Span * 01 to 70 F - to 40 to 65 F 5 to 02 40 to 90 F 5 to 30 65 to 5 F to 30 03 30 to 115 F 0 to 45 5 to 1 F 30 to 45 04 to 140 F to 60 1 to 135 F 45 to 60 05 75 to 165 F 25 to 70 135 to 160 F 60 to 70 06 5 to 195 F 40 to 90 160 to 190 F 70 to 90 07 5 to 215 F 55 to 0 190 to 2 F 90 to 0 09 155 to F 70 to 1 2 to 245 F 0 to 1 0 to 20 F 95 to 135 245 to 275 F 1 to 135 11 225 to 315 F 1 to 155 275 to 3 F 135 to 155 255 to 370 F 5 to 15 305 to 365 F 155 to 15 13 295 to 4 F 145 to 215 365 to 415 F 15 to 215 14 3 to 440 F 155 to 225 415 to 435 F 215 to 225 *Note: The recommended working span typically falls within the upper third of the nominal range. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 273

W91/W94 Series Direct-Operated Temperature Temperature ulb & Thermowell Selection For Heating & ooling SENSING UL & APILLARY Selection Sensing ulb Selection & Installation: The sensing bulb and capillary are available in opper (best heat transfer properties) or Stainless Steel (for corrosive applications). opper has better heat transfer properties than stainless steel and should always be chosen for better temperature control unless used in corrosive service. The length of the sensing bulb is dependent upon the capillary length required (see chart). Longer capillary lengths require a longer length sensing bulb to operate the regulator. For installation, the Union Hub is threaded into a tank or piping system. The bulb slides through the Union Hub and is held in place by the Union Nut which spins freely around the armored capillary and threads into the Union Hub. The angled surface of the sensing bulb forms a metal-to-metal seal on the inner edge of the Union Hub to prevent leakage of the process fluid. Thermowell Option (ordered separately) TEMPERATURE A thermowell isolates the sensing bulb from the process fluid. It can be used to remove the sensing bulb while the system is filled with fluid or to protect the sensing bulb from corrosive liquids or excessive system pressures (see following page). Sensing ulb & apillary ORDER ODE Sensing ulb Material apillary Tubing Material S15 opper (rass Union Hub) opper with Stainless Steel Spiral Armour A 13 16 U.25 15.25 19.25 Stainless Steel with Stainless Steel Spiral Armour A U 13.25 16 15.25 19.25 S16 Stainless Steel (Stainless Steel Union Hub) apillary Length in Ft.,, 16 24 Other Options available. onsult Factory. Tank Wall UNION NUT Unscrews for Sensing ulb Removal A Insertion Length U Sensing ulb Length Sensing ulb 1.00 STAINLESS STEEL ARMOUR PROTETED APILLARY UNION HU - 1 The union hub is threaded into side of vessel & is not permanently fastened to bulb. (union hub is included with sensing bulb & not needed when using a Thermowell) ulb being removed from thermowell Sensing ulb 274 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131

Direct-Operated Temperature W91/W94 Series ulb & Thermowell Selection For Heating & ooling SENSING UL inside OPTIONAL THERMOWELL Thermowell Option (ordered separately) Thermowells isolate and protect the sensing bulb from the process fluid, and are available in either rass (best heat transfer) or Stainless Steel (for corrosive applications). Thermowells allow for sensing bulb removal and replacement without having to drain liquid from the system. To maintain the best temperature control, always use a opper Sensing bulb as opposed to a Stainless Steel sensing bulb. For corrosive applications, Stainless Steel thermowells (with a copper sensing bulb) can be used. Thermowells are also recommended for applications with excessive system pressures or extremely turbulent flow to protect the sensing bulb from damage. Thermowell Length must be selected based on the length of the sensing bulb. The sensing bulb length is based on the length of the apillary used in the Thermal System. Longer capillary lengths require a longer sensing bulb to hold the additional actuator fluid inside the sensing bulb. Reference Sensing ulb hart for sensing bulb length. THERMOWELLS - Model Numbers & Lengths Stainless Steel Model ode 536-S2 536-SE2 536-WE2 Notes: 536-S6 536-SE6 536-WE6 Nominal Length 13" 16" " A INSERTION LENGTH (in.) UL THERMOWELL apillary Length (Ft.).25 15.25 19.25 13.00 16.00.00, or 16 24 TEMPERATURE rass Model ode 1) Other connections and lengths may be available, consult factory. 2) External pressure rating on opper is 0 PSI max. 3) External pressure rating on 316 SS is 00 PSI max. The Thermowell isolates the sensing bulb from the process liquid and allows for easy and safe removal of the sensing bulb. For applications in which the process media may be corrosive or contained under pressure, the use of a thermowell is required to prevent damage to the sensing bulb. For corrosive applications, use a stainless steel thermowell & copper sensing bulb. To ensure minimum response time, Heat Transfer Paste should be applied to the sensing bulb prior to installation into the thermowell. UNION NUT Unscrews for Sensing ulb Removal Tank Wall THERMOWELL LENGTH Thermowell A Insertion Length Sensing ulb 1.13 HU - 11/4 (Attached to thermowell and threaded into side of vessel) THERMOWELL LENGTH A Insertion Length ulb being removed from thermowell Sensing ulb Sensi ng Thermowell remains in place during installation or removal of bulb HU - 11/4 (Attached to thermowell and threaded into side of vessel) Tank Wall Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 275

W91/W94 Series Direct-Operated Temperature HEATING Model odes in hart are for complete Temperature. This includes the Valve ody and Thermal Actuator with standard copper bulb and ft. capillary. 3/4 TEMPERATURE 1 11/4 11/2 2 2 21/2 3 3 4 PMO (PSI) X = Temperature Range 0 = apillary Length ft. S15 = opper ulb PMO Weight (PSI) (lbs) W91-X-0S15-HN W94-X-0S15-HN 21 with Integral Union W91-X-0S15-HU W94-X-0S15-HU 21 Standard ody W91-X-0S15-H13N W94-X-0S15-H13N 21 with Integral Union W91-X-0S15-H13U W94-X-0S15-H13U 21 Standard ody W91-X-0S15-H14N 0 W94-X-0S15-H14N 0 21 with Integral Union W91-X-0S15-H14U 0 W94-X-0S15-H14U 0 21 Standard ody W91-X-0S15-H15N 0 W94-X-0S15-H15N 0 24 with Integral Union W91-X-0S15-H15U 0 W94-X-0S15-H15U 0 24 Standard ody W91-X-0S15-H16N 0 W94-X-0S15-H16N 0 25 with Integral Union W91-X-0S15-H16U 0 W94-X-0S15-H16U 0 25 W91-X-0S15-H17N 1 W94-X-0S15-H17N 1 57 W91-X-0S15-H17F5 1 W94-X-0S15-H17F5 1 57 W91-X-0S15-H1F5 65 W94-X-0S15-H1F5 65 65 W91-X-0S15-H19F5 W94-X-0S15-H19F5 0 Standard ody Standard ody *Flanged with Standard Actuator 4 21/2 W94 Indicating Type Actuator with valve body X = Temperature Range 0 = apillary Length ft. S15 = opper ulb onnection 1/2 W91 Non-Indicating Type Actuator with valve body *Flanged with High-Force Actuator W91-X-0S15-HF5 40 W94-X-0S15-HF5 40 5 W91H-X-0S15-H1F5 1 N/A - 96 W91H-X-0S15-H19F5 1 N/A - 11 W91H-X-0S15-HF5 1 N/A - 60 * # Flange available. onsult Factory. The Special High-Force Actuator will allow the valve to be operated at a higher operating pressure. Note: Thermowells for Models W91/W94 are ordered separately. Model onfiguration hart Models Temperature Range = X apillary Length W91 Non-Indicating W94 Indicating Dial W91H High-Force 01 14 (Refer to Temperature Range hart) 0 16 24 05 (75-165 F) W91 Range ode 01 02 03 04 05 06 07 09 11 13 14 Nominal Temperature Range * - 70 F 40-90 F 30-115 F - 140 F 75-165 F 5-195 F 5-215 F 155 - F 0-20 F 225-315 F 255-370 F 295-4 F 3-440 F - 5-30 0-45 - 60 25-70 40-90 55-0 70-1 95-135 1-155 5-15 145-215 155-225 Feet (std) Feet 16 Feet Feet 24 Feet Valve ody Selection S15 opper ulb (std) (with rass Union Hub) S16 Stainless Steel ulb (with SS Union Hub) Included in Model ode in above chart. H15N (11/4 ) S15 Example Model ode configured: W91-05--S15-H15N (W91, 75-165 F Temp. Range, ft. capillary, Std. opper Sensing ulb, 11/4 Valve ody) Valve bodies used for HEATING have designation H (Example: H15N) Normally Open (IN-TO-LOSE) Single-seated alanced Valve with lass IV shut-off * The recommended working span falls within the upper third of the nominal range. 276 Sensing ulb www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 FLOW HEATING

Direct-Operated Single-Seated Valve odies W91/W94 Series Single Seat 1/2 4 for Temperature HEATING NORMALLY OPEN Stem In-To-lose for HEATING Actuator Mounting Surface Dimensions in inches Actuator Mounting Surface Union FLOW FLOW TEMPERATURE A () A (UNION) A THREADED & UNION FLANGED Valve ody Specifications ody Material 1/2-11/2 Stainless/ronze 2 ast Iron 2-4 ast Iron Trim Material Stainless Steel Stainless Steel Stainless Steel onnection Threaded or Malleable Iron Union Ends Threaded 5# Flanged # Flanged & Temperature Rating PSI @ 4 F PSI @ 4 F 5 PSI @ 4 F PSI @ 4 F Valve ody Selection Valve ody Number (In-To-lose Heating) Union HN HU H13N H13U H14N H14U H15N H15U H16N H16U H17N FLANGED 5# # H17F5 H17F H1F5 H1F H19F5 H19F HF5 HF Size onnection apacity v 1/2" 3.2 3/4" 6.3 1". 11/4" 15.9 11/2" 22.4 2" 33.1 Maximum lose-off (PSI P) 0 0 0 1 Dimensions A A A Threaded 5# FLG # FLG 4.5 x x 4.5 x x 4.5 x x 4. x x 5.190 x x 9.0 x x A Union 6. 6. 7.00 7..00 x 2.375 2.375 2.375 3. 3.0 5.7 2. 2. 2. 2. 2.69 4.75 Approx. Ship. Wt. (lbs) [kg] 14 [6.35] 14 [6.35] 14 [6.35] 17 [7.7] 1 [.2] [22.7] x x x x 5.75 7.00.00.75 4.75 5.00 5.75 6. 0 [36.3] 96 [43.6] 1 [49.9] 160 [72.6] Valve Type 2" 21/2" 3" 4" 33.1 47.5 6.2 9.5 Standard 1 65 40 Special* 1 1 1 x x x x.375.625.75.0.75 11. 11.625 13.5 Notes: For 21/2-4 sizes, consult factory for proper actuators. * With High-Force Actuator, which allows the valve to operate at a higher differential pressure. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 277

Direct-Operated apacity harts Single-Seated Valve odies W91/W94 Series for Temperature HEATING APAITIES Steam (lbs/hr) TEMPERATURE Inlet (PSIG) SINGLE-SEATED VALVES Size & Valve ody Number 11/2" 2" 1/2" 3/4" 1" 11/4" H H13 H14 H15 H16 21/2" 3" 4" H1 H19 H H17 1 91 10 309 454 640 946 1357 1949 39 3 3 3 34 5 722 66 1530 2197 3527 5 115 226 37 570 03 117 1703 2445 3926 144 23 46 715 07 14 2135 3066 4922 15 173 341 54 59 11 179 256 366 5919 2 39 62 04 1415 90 3000 4307 6915 25 231 455 70 1149 161 2392 3432 492 79 30 260 513 79 94 122 2693 364 554 90 40 319 627 75 153 2230 3295 4729 6790,901 377 742 72 172 263 39 5593 031,94 60 435 57 146 2162 3045 40 645 9272 14,7 70 493 971 1665 2451 3453 52 7322,513 16,0 0 552 6 161 2740 361 5705 17 11,755 1,73 90 6 10 5 3030 426 6307 9051,996,66 0 66 1315 2255 3319 4676 69 9916 14,237 22,59 5 14 1602 2746 4043 5695 416,077 17,340 27,41 1 959 1 3237 4766 6714 9922 14,23,443 32,23 175 15 2175 3729 5490 7734 0 1 2462 42 6213 753 1542 3035 Note: Verify that Maximum lose-off for 2-4 models does not exceed max rating for selected Valve ody Number and Type (refer to Valve ody Number in chart). Notes: 1) For reduced-port 1/2 valves, consult factory. 2) All steam capacities based on ritical Drop (hoked Flow). APAITIES Water (GPM) (PSI P) Note: When used with water, add W to the Valve ody Number. Example: H17N becomes HW17N Note: Verify that Maximum lose-off for 2-4 models does not exceed max rating for selected Valve ody Number and Type (refer to Valve ody Number chart on previous page) 27 1 3 5 15 25 30 40 60 70 0 90 0 5 1 175 0 1/2 HW 3/4 HW13 1 HW14 3.2 5.5 7.2 14 16 1 23 25 27 29 30 32 36 39 42 45 51 6.3 11 14 24 2 32 35 40 45 49 53 56 60 63 70 77 3 9 0 11 19 24 34 42 4 54 59 6 76 4 90 97 2 1 132 143 153 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131 SINGLE-SEATED VALVES Size & Valve ody Number 11/4 11/2 2 HW15 HW16 HW17 16 2 36 62 71 0 7 1 1 3 133 142 151 159 17 195 2 225 22 39 71 7 0 1 3 142 15 174 17 0 213 224 274 296 317 33 57 74 5 14 166 11 9 234 256 277 296 314 331 370 405 21/2 HW1 3 HW19 4 HW 4 2 6 1 14 2 23 260 300 336 36 397 425 451 475 531 52 6 11 152 216 264 305 341 374 431 42 52 571 6 647 62 762 35 1 190 245 346 424 490 54 600 693 774 4 916 979 39 95 24 1341

Direct-Operated apacity harts Single-Seated Valve odies W91/W94 Series HEATING for Temperature Steam Required for Heating Water Steam flow required through a temperature regulator (lbs/hr) to heat a specified number of gallons of water per hour (gal/hr) TALE 1- Steam Flow Required in Pounds Per Hour (lbs/hr) ` 25 5 15 25 30 40 60 70 0 90 0 115 130 145 160 175 0 225 1 2 3 4 5 6 15 17 19 21 24 27 30 33 36 41 47 52 2 4 6 16 21 25 29 33 3 42 4 54 60 66 72 3 94 4 0 4 17 25 33 42 5 67 75 3 95 1 133 145 166 17 7 0 16 25 33 42 66 3 0 116 133 149 166 191 216 241 266 290 332 374 415 Gallons of Water per Hour To e Heated 300 0 700 00 00 4000 25 37 62 75 0 4 149 174 199 224 249 26 324 361 39 436 49 560 622 166 332 49 664 30 996 132 1660 1992 2324 2656 29 33 31 4316 4 53 5 6640 7470 300 21 41 62 3 4 4 166 7 249 290 332 373 415 477 539 601 664 726 30 934 37 29 5 7 116 145 174 232 290 34 407 465 523 51 66 755 42 929 17 1162 1307 1452 41 3 4 166 7 249 332 415 49 51 664 747 30 955 79 10 132 1452 1660 167 75 3 166 249 332 415 49 664 30 996 1162 132 1494 1660 1909 215 2400 2656 2900 33 3735 41,000 415 30 45 1660 75 2490 33 41 490 5 6640 7470 300 9544,790,030 13,20 14,524 16,600 1,60,7,000 30 1660 2490 33 41 490 6640 300 9960 11,6 13,20 14,940 16,600 19,0 21,50 24,060 26,560 29,04 33,0 37,360 41,0 Temp Increase ( F) 5 15 25 30 40 60 70 0 90 0 115 130 145 160 175 0 225 TEMPERATURE Temp Increase ( F) HEATING WATER: The amount of steam required to heat water can be found using chart above. Example: To heat 00 gallons per hour of water from 40 F to 140 F (Temp. increase 0 F) requires 30 lbs/hr of steam. HEATING FUEL OIL: The amount of steam required to heat fuel oil is half of that to heat water. Use half the value found in chart above. Example: To heat 00 gallons per hour of fuel oil from 40 F to 140 F (Temp. increase 0 F) requires 415 lbs/hr of steam. apacity Formulas for Steam Loads When Heat Load or Heat Transfer Rate (E) is Known When Square Feet Equivalent Direct Radiation (EDR) is Known When Heating Water with Steam When Heating Fuel Oil with Steam When Heating Air with Steam oils Note: apacity of steam required (lbs/hr) apacity of steam required (lbs/hr) apacity of steam required (lbs/hr) apacity of steam required (lbs/hr) apacity of steam required (lbs/hr) = E (tu/hr) 00 = Sq. ft. of EDR 4 = GPM x Temp Rise ( F) 2 = GPM x Temp Rise ( F) 4 = FM x Temp Rise ( F) 900 Above formulas based on steam containing approximately 00 tu s of Latent Heat per pound. Tel: 6-495-5131 Pottstown PA USA www.watsonmcdaniel.com 279

Direct-Operated Temperature W91/W94 Series OOLING Model odes in hart are for complete Temperature. This includes the Valve ody and Thermal Actuator with standard copper bulb and ft. capillary. W94 Indicating Type Actuator with valve body X = Temperature Range 0 = apillary Length ft. S15 = opper ulb onnection TEMPERATURE W91 Non-Indicating Type Actuator with valve body PMO (PSI) X = Temperature Range 0 = apillary Length ft. S15 = opper ulb (PSI) Weight PMO 3/4 with Integral Union W91-X-0S15-13U W94-X-0S15-13U 1 with Integral Union W91-X-0S15-14U W94-X-0S15-14U 13 11/4 with Integral Union W91-X-0S15-15U W94-X-0S15-15U 17 11/2 with Integral Union W91-X-0S15-16U W94-X-0S15-16U 1 2 with Integral Union W91-X-0S15-17U W94-X-0S15-17U 24 21/2 5# FLG W91-X-0S15-1F5 65 W94-X-0S15-1F5 65 55 3 5# FLG W91-X-0S15-19F5 W94-X-0S15-19F5 0 4 5# FLG W91-X-0S15-F5 40 W94-X-0S15-F5 40 5 Note: Thermowells for Models W91/W94 are ordered separately. Model onfiguration hart Models Temperature Range = X apillary Length W91 Non-Indicating W94 Indicating Dial 01 14 (Refer to Temperature Range hart) 0 16 24 05 (75-165 F) W91 Feet (std) Feet 16 Feet Feet 24 Feet Sensing ulb Valve ody Selection S15 opper ulb (std) Included in Model ode in above chart. (with rass Union Hub) S16 Stainless Steel ulb (with SS Union Hub) 15U (11/4 ) S15 Example Model ode configured: W91-05--S15-15U (W91, 75-165 F Temp. Range, ft. apillary, opper Sensing ulb, 11/4 Valve ody) Range ode 01 02 03 04 05 06 07 09 11 13 14 Nominal Temperature Range * - 70 F 40-90 F 30-115 F - 140 F 75-165 F 5-195 F 5-215 F 155 - F 0-20 F 225-315 F 255-370 F 295-4 F 3-440 F - 5-30 0-45 - 60 25-70 40-90 55-0 70-1 95-135 1-155 5-15 145-215 155-225 Valve bodies used for OOLING have designation (Example: 15U) 3/4-2 with Integral Union for Easy Removal from the piping system Normally losed (IN-TO-OPEN) Double-seated alanced Valve with lass II shut-off FLOW * The recommended working span typically falls within the upper third of the nominal range. OOLING 20 www.watsonmcdaniel.com Pottstown PA USA Tel: 6-495-5131