Self-Operating Temperature Regulators
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1 Self-Operating Temperature Regulators Remote Bulb for Heating, Cooling, Mixing and By-Pass Applications
2 Powers # Regulators With Powers # Self-Operating Temperature Regulators, you no longer need external power to control your process. Just one temperature set-point adjustment to make and the rugged, self-operating # Regulator controls the flow of heating or cooling medium and maintains a uniform temperature. So whether you re using processing equipment, heat exchangers, or machinery, Powers # Self-Operating Temperature Regulators are the easy solution to your control problems. B # v 0448
3 Table of Contents Page # Features...4 Component System Thermal System Options...5 # Type ST Regulators for Heating or Cooling...6 # Type CD Regulator for Heating...8 # Type DS and DB Double Seat Regulators for High Capacity Heating or Cooling...0 # Type WM Water Mix Regulators for Water Mixing... Installation Information...4 Special # Regulators, Optional Accessories....4 Sensing Bulbs and Protective Wells...5 # Regulator Sizing: Sizing, Maximum Operating, Load Calculations....6 # Regulator Sizing Calculations and ChartsEnglish...7 # Regulator Sizing Calculations and ChartsMetric...9 Sizing Mixing RegulatorsSizing Capacities... How to Order... B # v 0448
4 Powers # Features Thick (.049 ) wall capillary eliminates need for additional armor. Large (7.8 sq. in.) bellows provides extra valve positioning power, increasing accuracy. Protected capillary entry into regulator shields against damage and strain. Deep corrugations in bellows provides long life.. High rate spring allows 60 F adjustment span. Temperature adjustment screw utilizes ball bearing spring platform, for easy adjustment. Temperature setting scale provides easy, convenient reference when changing setpoints. Open yoke design minimizes heat transfer from valve to bellows, allowing more accurate control. Wide range of heating, cooling, and mixing valve bodies are available. Union ends assist installation and maintenance B # v
5 Component System Thermal System Options Powers No. Regulator capability includes interchangeable sensing and control components for minimum downtime, greater flexibility, and extra economy. Any of 9 thermal systems (composed of remote bulb, capillary, and bellows) can be teamed up with 5 standard valve assemblies. This means approximately,000 standard models are available to meet virtually every process requirements. If a thermal system is damagedor if process changes require a different temperature rangereplacement can be made in minutes without removing the valve assembly from the supply line. Similarly, a single thermal system can accommodate a variety of valve types and sizes. The Thermal System is the key component of a # Regulator. It senses the process temperature and provides power to stroke the valve. The # Thermal System offers tremendous flexibility through its wide range of options. Standard features and options are listed below. (See How to Order section, pp., for specifying # Thermal System Options.) Capillary Length Standard 8 Optional 5 or 0 Bulb and Capillary Material Standard: Copper Optional: Stainless steel or Teflon Optional Dial Indicator Stainless steel case Rotates in any direction Fast response Dual F / C scale Wide availability of temperature ranges. (See How to Order section, pages, for range availability.) Bulb Fitting Standard Style D (Fixed Union) Optional Style A (Adjustable Union), Style J (Plain Bulb), or Style V (Vertical Bulb) Bulb Usually dictated by range and valve selection. See How to Order section (pp. ) for applicable bulb size. 5 B # v 0448
6 Powers # Type ST Regulator Heating or Cooling to with Stainless Steel Trim Application: # Type ST Regulator is well-suited for heating and cooling applications where good shutoff is required or where high inlet pressures cause a large pressure differential across the valve. The Type ST is normally the single seat valve used for cooling applications, and steam applications above PSI. (Maximum closure is 0.% of maximum flow) Self-Aligning Plug assists with tight shutoff. Spring-loaded V-Ring Packing provides tight sealing and long life. Stainless Steel Plug and Seat provide long life in high and low pressure applications. Union ends ease installation and maintenance Reduced Ports are available for low flow applications. B # v
7 Selection Refer to Load Calculations (page 6) to determine the valve capacity required for your process. Next, refer to the Sizing Charts (pages 6 ) to select valve size matching your capacity requirements. How to Order Refer to the product number guide (on pages ) to match your valve and thermal system selections and determine product number. Type ST Dimensions A Style Material and Connections A Heating B Cooling C Shipping Weight lbs. (kg) B C Single Seat Stainless Steel Trim Bronze body, double female unions 4 8 (59) 4 () 4 (44) (4) (9.5) (6) 8 (5) (5) 6 (5) 0 (0) 4 8 (65) (8) 4 (57) 6 4 (7) () Specifications Body: Bronze ANSI Class Connections: Union ends Trim: Stainless steel s A B C D 4 Cv (psi/kpa) (79) (79) (79) (79) (965) (48) 7 B # v 0448
8 Powers # Type CD Regulator Heating to Bronze trim with Composition Shut Off Disc Application: The # Type CD Regulator is well-suited for heating applications where the steam inlet pressure is under psi and good shut-off is required. The Type CD is only available for steam service. (Maximum closure is.0% of maximum flow) Spring-loaded V-Ring Teflon Packing provides good sealing, long life, and requires no lubricant. Self-aligning plug assists tight shut-off. Union ends ease installation and maintenance. Composition disc assists shut-off Large port area provides extra capacity. B # v
9 Selection Refer to Load Calculations (page 6) to determine valve capacity required for your process. Refer to Sizing Charts (pages 6 ) to select valve size matching your capacity requirements. How to Order Next refer to the product number guide (pages ) to match your valve and thermal system selections and determine product number. Type CD Dimensions A Style Material and Connections A Heating B Cooling C Shipping Weight lbs. (kg) 4 8 (60) 8 (9) N/A (4) 9 (8.6) B C Single Seat Composition Disc Bronze body, double female unions (6) 8 (5) N/A 6 (5) 0 (9.) 4 8 (66) (8) N/A 6 4 (7) (0) (7) 4 (44) N/A 7 (78) 4 (0.9) 5 (8) 6 (5) N/A 8 (0) 6 (.) Specifications Body: Bronze ANSI Class Connections: Union ends Trim: Bronze s Cv (PSI/kPa) (PSI/kPa)Water () () () (0) (07) (07) (07) (07) (07) (07) 9 B # v 0448
10 Powers # Type DB and DS Double Seat Regulators ( to ) Heating or Cooling s to Double Seat Bronze or Stainless Trim Application: The # Double Seat Regulators are normally used in applications where single seat regulators do not have enough capacity. Double Seat Regulators do not have tight shut-off (when new, leakage = 0.5% of max. flow), and should not be used where leakage can cause overheating in low capacity heating systems (e.g. Heat Exchangers). Double Seat Regulators will work well in heating systems that have storage capacity (e.g., tank type water heaters, or constant flow heat exchanger systems with storage tanks) and are excellent for cooling applications which usually utilize some additional method of bypassing water around the # Regulator. Bronze trim is suitable for water and steam inlet pressures below psi. Stainless steel trim should be used when inlet pressure is above psi. Teflon or EPT springloaded V-Ring packing provides tight sealing and long life. Skirt guided plugs assist smooth operation. Double Seat Style provides extra capacity. Union ends ease installation and maintenance size (Bronze body). Stainless steel seats and plugs available for severe service applications. B # v
11 Selection Refer to Load Calculations (page 6) to determine valve capacity required for your process. Refer to Sizing Charts (pages 6 ) to select valve size matching your capacity requirements. Type Description DB...Double Seat Bronze Trim, to DS...Double Seat Stainless Trim, to How to Order Refer to the product number guide (pages ) to match your valve and thermal system selections and determine product number. Double Seat Regulator Dimensions A B C Style Double Seat Material and Connections Bronze body, double female unions, Types DB, DS A Heating B Cooling C Shipping Weight lbs. (kg) 5 (8) 8 (54) 4 (70) 6 4 (7) 4 () (87) (64) (76) 7 (78) 6 () 5 8 (90) 5 8 (67) 4 (8) 8 (0) 8 () 6 (49) 5 8 (9) 4 8 () (44) 9 (8) Specifications Body: to Bronze ANSI Class, to 4 Iron ANSI Class 5 Connections: to Union Ends, to 4 Flanged Trim: Bronze or Stainless Steel s Cv P Bronze (PSI/kPa) P Stainless Steel (PSI/kPa) () () () () (04) (04) (04) 5 (86) B # v 0448
12 Powers # Type WM Regulator ( to ) to Water Mix Three-Way Bronze or Iron Body, Bronze Trim Application: The # Type WM/IM Regulator is typically used for domestic or process water tempering. It is also used for bypass control (in lieu of a diverting valve), but must be piped as a mixing valve (two inlets, one outlet). (Maximum closure is.0% of maximum flow) EPT Discs ( to ) assist shut-off. Lower guide stabilizes plug, assisting shut-off and modulation. EPT spring-loaded V-ring packing provides tight sealing and long life. MIXING BULB IN WELL TEMPERED WATER HOT WATER FROM BOILER Self-aligning plug assists tight shut-off. COLD WATER HOT WATER WATER HEATER RETURN TO BOILER U = Upper Port / Cold Water Inlet B = Bottom Port / Hot Water Inlet C = Combination Port / Tempered (mixed) Water Outlet B # v 0448 BY-PASS
13 Selection Refer to Load Calculations (page 6) to determine valve capacity required for your process. Refer to Sizing Charts (pages 6 ) to select valve size matching your capacity requirements. How to Order Next refer to the product number guide (pages ) to match your valve and thermal system selections and determine product number. Type WM Dimensions Style Material and Connections A B C Shipping Weight lbs. (kg) A B C Water Mix Bronze body, screwed ends, Type WM 4 8 (59) 4 (44) 7 8 (7) (9.5) (6) 4 (57) 8 (86) (0) 4 8 (65) (64) 7 8 (98) (0.4) (7) 4 (70) 4 (4) 5 (.) (78) (76) 5 8 (0) 8 (.7) 5 4 (87) 8 (86) 6 8 (56) (5) Specifications Body: to Bronze ANSI Class 5 Connections: to Screwed Ends Trim: Bronze ( to with EPT discs) s Cv Mixing Cv Bottom Port (bypass) Cv Top Port (bypass) P (PSI/kPa) () 5 () 5 () 5 () 5 () 5 () B # v 0448
14 Special # Regulators Powers Process Controls can build Special # Regulators for a wide range of applications. Always consult your factory representative for availability of any Special # Regulators. For example, Powers Process Controls has developed: Ambient Sensing Regulator for Controlling Space Temperature or Tracing Pipelines Nickel-Coated Regulator for Sea Water Service Plugged Port Three-Way Regulator for Boiler Blow Down Tempering Special bulbs and capillaries for OEM applications Optional Accessories Strainer Prolongs life and prevents temperature variations due to lodged dirt or sediment between plugs and seats. Selfcleaning unit installs in steam supply line to valve. 4 4 Order No # Ambient Sensing Regulator Stem Lubricator Silicone grease lubricant minimizes friction between valve stem and packing. Suitable for valves handling steam, hot and cold water, air, natural gas, oils,and most other liquids compatible with bronze or cast iron valve bodies. Temperature limits of fluid in valve: 40 F to +400 F. (Not used with Teflon V-Ring Pkg.) Order No A Installation Information No. is the simplest of all temperature regulators to install because it mounts directly in the supply lineno external power requirement and no mounting brackets. Recommended valve installation is in vertical position (Figure ) or in any position within 90 in either direction as shown. Remote sensing bulb is mounted either horizontally or vertically (end down) with bushing furnished. A special bulb must be ordered for vertical (end up) mounting (Figure ). Figure : Regulator Figure : Bulb Standard Bulb Special Bulb Specify end-up mounting B # v
15 Sensing Bulbs and Protective Wells Bulb size is usually dictated by range and valve type selected. Refer to How to Order information on pages for proper bulb size. Style DFixed Union Bulbs (Standard) For rigid, pressure-tight attachment to vessel or pipelineeither directly or into socket well (see Style S wells). Union connection simplifies installation. Nominal Dimensions (O.D. x Length) Tank Fitting Bulb & Capillary Material Actual Dimensions (in/mm) D Rating () (PSI/kPa) L Shock Non-Shock x 9 NPT Copper 5 6 (4) 8 (0) 75 (4445) (6) NPT 47 Stainless 5 6 (4) 8 6 (05) 0 (700) 75 (845) x 0 NPT Copper 5 6 (4) (5) 75 (4445) (6) L NPT 47 Stainless 5 6 (4) 9 6 () 0 (700) 75 (845) 4 x 4 4 NPT Copper 6 (0) 6 (576) (80) (80) 8 x 0 4 NPT Copper 8 (5) (77) (80) (80) D Style JPlain Bulb (Special) No unionfor liquid or air immersion in open tanks or ducts. Maximum 5 foot coated capillary length. Nominal Dimensions (O.D. x Length) x 9 x 0 Style AAdjustable Union Bulb (Special) For pressure-tight insertion into tanks or ducts. Adjustable union permits capillary to be moved any desired distance through fitting and into liquid for more effective sensing bulb position. Nominal Dimensions (O.D. x Length) Bulb & Capillary Material Tank Fitting Bulb & Capillary Material Standard Capillary Lengths (Feet) Actual Dimensions (in/mm) D Rating () (PSI/kPa) L Shock Non-Shock x 9 NPT 47 Stainless 5 6 (4) 8 4 () 0 (700) 75 (845) x 0 NPT 47 Stainless 5 6 (4) 0 (50) 0 (700) 75 (845) D Actual Dimensions (in/mm) 47 Stainless 8, (4) 8 4 () Teflon-coated () (4) 8 4 () 47 Stainless 8, (4) 0 (50) Teflon-coated () (4) 0 (50) L D ; ; L L ;; Style GFinned Bulb (Special) Kit may be added to style D bulb as noted. For air-sensing applications not corrosive to copper. Has duct-mounting flange for easy installation. Flange requires 4 dia. bolt circle; four 9 dia. bolt holes at 90 spacing. Nominal Dimensions (O.D. x Length) Bulb & Capillary Material Actual Dimensions (in/mm) D L Accessory Kit Numbers x 9 Bulb Copper (5) 8 6 (4) x 0 Bulb Copper (5) (5) 70-5 L D D Style S Wells For sealing Style D bulb in tanks or pipeline installation. Provides higher pressure rating and corrosion protection for bulb. Nominal Dimensions x 9 x 0 4 x 4 Tank FItting Material Actual Dimensions D L Wall Thickness Rating* D L Part No. NPT 6L Stainless 64 (7) 8 6 ().0 4 (0) 675 (4654) NPT Chrome-Plated Copper (5) 9 6 (0) (07) (74) NPT Chrome-Plated Copper (5) (5) (07) (74) NPT 6L Stainless 64 (7) 0 8 (58).0 4 (0) 675 (4654) NPT 47 Stainless 7 64 (9) 5 6 (59).0 60 (48) 540 (75) NPT Chrome-Plated Copper 4 (0) 4 (60).05 (05) (80) * ratings are valid up to the following temperature limits: 70 F for all copper bulbs and wells; 600 F for all others. L D Notes: () Teflon-coated bulb and capillary is resistant to deterioration in most metal-finishing baths and other chemical solutions at temperatures to 400 F max. (Refer to Powers Form AE-4 for information on corrosive resistance of specific solutions.) () ratings are valid up to following temperature limits: 70 F for all copper bulbs and wells; 600 F for all others. 5 B # v 0448
16 # Regulator Sizing Sizing The following sizing tables apply for steam or water input. For other media, capacities may be calculated using C V factors or consult factory. To prevent cycling, valve size should not exceed supply line size; preferably, it should be one or two sizes smaller. Maximum Operating A pressure drop (differential) for fluid flow must exist across the valve. differential is the difference in pressure between inlet and outlet under flow conditions. The greater the differential, the greater the flow at any plug position. For steam, maximum flow occurs at a drop equal to approximately % of absolute supply pressure (gauge pressure + 5 psi). To size properly, it is necessary to know available differential at maximum flow. For best control, as much differential as possible should be taken across the valve. For water, use a pressure drop of at least 5% of inlet pressure. Caution: Do not exceed maximum differentials for valve size shown in tables on pages 9. Too large a differential may cause valve chatter or prevent shutoff. The maximum differential is the pressure the valve will have against it at shutoff. Load Calculations For obtaining Required Amount of Heating or Cooling Medium. For heating or cooling water GPM =. For heating water with steam Lbs. steam / hr. =. For heating or cooling water with water GPM = GPM x F water temp rise or drop F water temp rise or drop 4. For heating air with steam Lbs. steam / hrs. =.08 x ( F air temp rise) x 5. For heating or cooling air with water GPM =.6 x BTU/hr. ( F water temp. rise or drop) x 0 6. For heating oil with steam Lbs. steam/hr. = GPM CFM x ( F air temp. rise) 000 x ( F water temp drop or rise) GPM 4 x ( F water temp rise) x ( F oil temp. rise) CFM 000 Pounds of per Hour to Raise Water Temperature* T U.S. Temperature Change T F GPH ,000,0,000,000 4, , ,000, ,, ,000,0, ,000,40,000, ,,670,0, ,000,0,000,000 4, ,65,7,40,0 4, ,000,0,000,670 4,000 5, ,5,0,,000 4,0 6,000 * For fuel oil, divide lbs. steam / hr. by. B # v
17 # Regulator Sizing (cont d) See page 9 for metric equivalents. Heating and Cooling Regulators Water Capacities (Gallons per minute) Single Seat Stainless Steel Trim Regulators (Type ST) Single Seat Composition Disc Regulators (Type CD) Heating only Double Seat Regulators Bronze and Stainless Steel Trim (Types DS & DB) A B C D Available Sizing (PSI) C V Available Sizing (PSI) C V Available Sizing (PSI) Diff. Liquid Liquid Liquid C V BRZ SS Heating Regulators Capacities (Pounds per hour) Single Seat Stainless Steel Trim Regulators (Type ST) A B C D 4 A B C D 4 Inlet PSIG Available Sizing PSIG Inlet PSIG Available Sizing PSIG B # v 0448
18 # Regulator Sizing (cont d) See page 0 for metric equivalents. Heating Regulators Capacities (Pounds per hour) Single Seat Composition Disc Regulators (Type CD) Double Seat Regulators Bronze and Stainless Steel Trim* (Types DS & DB) *Note: Always use S.S. trim over psig Bronze Bronze 5 SS SS Inlet PSIG 5 0 Available Sizing PSIG Inlet PSIG 5 Available Sizing PSIG Inlet PSIG Available Sizing PSIG Inlet PSIG Available Sizing PSIG B # v
19 # Regulator Sizing: Metric Equivalents See page 7 for English units. Heating and Cooling Regulators Water Capacities (Liters per second) Single Seat Stainless Steel Trim Regulators (Type ST) Single Seat Composition Disc Regulators (Type CD) Heating only Double Seat Regulators Bronze and Stainless Steel Trim (Types DS & DB) A B C D Available Sizing (kpa) Available Sizing (kpa) Available Sizing (kpa ) Diff. Liquid Liquid Liquid BRZ SS Heating Regulators Capacities (Kilograms per hour) Single Seat Stainless Steel Trim Regulators (Type ST) A B C D 4 A B C D 4 Inlet kpa Available Sizing PSIG Inlet kpa Available Sizing PSIG B # v 0448
20 # Regulator Sizing: Metric Equivalents (cont d) See page 8 for English units. Heating Regulators Capacities (Kilograms per hour) Single Seat Composition Disc Regulators (Type CD) Double Seat Regulators Bronze and Stainless Steel Trim* (Types DS & DB) *Note: Always use S.S. trim over psig Bronze SS Bronze SS Inlet kpa Available Sizing PSIG Inlet kpa 75 Available Sizing PSIG Inlet kpa Available Sizing kpa Inlet kpa Available Sizing kpa B # v
21 Sizing Mixing Regulators Water Capacities (Gallons per Minute/Liters per Second) -Way Mixing s (Type WM) The following water capacities of Powers # Regulator -way valves are based on piping as shown. The cold water supply line must be connected to the upper inlet U. Hot water supply must be connected to bottom inlet B. Side port C is the outlet for the mixed water. Maximum MIXED FLOW for Tempering Applications Gallons per Minute Liters per Second 4 4 C V Available Sizing * (PSI) For sizes,, and 4, use Bottom Port table Note: -way regulators perform poorly with less than 8 lb. pressure differential. Tempered water systems should employ downstream high temperature limit controls (Powers AquaSentry) to protect users from scalding in the event of regulator failure Full Flow through BOTTOM Port (upper port closed) for By-Pass Applications Gallons per Minute Liters per Second Available Sizing * (kpa) Available Sizing (PSI) Available Sizing (kpa) C V For sizes,, and 4, use Bottom Port table. U (upper) COLD C (common) MIXED B (bottom) HOT Full Flow through UPPER Port (bottom port closed) for By-Pass Applications Gallons per Minute Liters per Second Available Sizing (PSI) Available Sizing (kpa) C V Notes: * difference between lowest of inlet and outlet pressures. Piping should be arranged so that inlet pressures are equal. difference between open port and outlet. B # v 0448
22 How to Order Indicate the entire digit code(s) when ordering. Complete # Regulators 595 Lower Housing Determine the order code from the lower housing assembly code chart below. Eliminate the 590 prefix when ordering a complete regulator. Thermal System Determine the code from the thermal system code chart (page ). Eliminate the 700 prefix when ordering a complete regulator. # Lower Housing Assemblies 590 Type Order Seat Packing Body Trim Code Single Comp EP (heating) Bronze Bronze CD Single TFE (H) EP (C) Bronze Stainless ST Double EP (H & C) Bronze Bronze DB Double TFE (H) EP (C) Bronze Stainless DS Mixing EP (Mixing) Bronze Bronze WM Style Order CD ST DB DS WM Code /A n A /B n B /C n C /D n D / n n n 0 /4 n n n 075 n n n n n 00 -/4 n n n n 5 -/ n n n n n n n Action Heating Cooling (not available in Type CD body style) Mixing (WM only) Order Code H C M B # v 0448
23 # Thermal Systems Bulb and Capillary Material Order Code Copper (with 8 capillary) C Stainless Steel (with 8 capillary) S Capillary Length (copper) 5 5 (stainless steel) 5 0 (copper) 0 0 (stainless steel) 0 Bulb Style Fixed Union D No Pipe Fittings J Adj. Union A D Vertical V Head Assembly 4 Water Mix Bodies Range codes 8 H All other bodies Non-Indicating N Indicating I 700 Temperature Ranges Range/Bulb Codes x 0 Bulb x 9 Bulb -/8 x 0 Bulb Single or Double Seat s : s / through Heating Cooling Water Mix D.A. R.A. / to 0 0 to 70 F 0 to 60 F 0 to 60 F 0 55 to 5 F 45 to 05 F 55 to 5 F 0 85 to 45 F 70 to 0 F 80 to 40 F to F 00 to 60 F 05 0 to 70 F 0 to F 0 to 60 F no longer available. Substitute either 05 or to F 0 to 80 F 5 to 95 F to 0 F to 0 F 60 to 0 F 09 to F 85 to 45 F to F 0 0 to 90 F 0 to 80 F 0 to 80 F 70 to 0 F 55 to 5 F 60 to 0 F High Power Head Assembly for -/ 4 Water Mix 8 to 80 F Below 0 F 70 to 00 F 95 to 5 F Range/Bulb Code (two-digit codes below) All ranges/bulb sizes listed below are no charge. Select range with setpoint in upper third for best performance. Consult factory for ranges/bulb sizes not listed. Range/Bulb Codes -/4 x 4 Bulb* x 0 Bulb Double Seat : s -/ through 4 Heating Cooling D.A. R.A. Water Mix 0 to 70 F 0 to 60 F 55 to 5 F 45 to 05 F Not 4 85 to 45 F 70 to 0 F applicable to F 5 0 to 70 F 6 6 no longer available. Substitute either 5 or to F 0 to 80 F 8 70 to 0 F to 0 F Not applicable 9 to F 85 to 45 F 0 0 to 90 F 0 to 80 F 70 to 0 F 5 to 5 F High Power Head Assembly for -/ 4 Water Mix 4 0 to F -/4 x 5 40 to 70 F 4 Bulb* Above 0 F 6 to 80 F 7 80 to 0 F * Not available in stainless steel B # v 0448
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