AB-QM Pressure Independent Control Valve

Transcription

1 valve equipped with an actuator is a control valve with full authority and automatic balancing function- flow limiter. Typical applications are: Temperature control and permanent automatic balancing on terminal units (chillers airhandling units, fan coils, induction units, chilled seillings, plate heat exchangers,..). Features and Benefits: The temperature control valve provides pressure independent regulation of flow while also providing flow limiting system balance. The valve internally contains a unique differential pressure regulator which automatically adjusts to normal changes in system pressure from valves opening and closing or changing of pump speed. As a result of maintaining a constant pressure for the control valve, valve authority is maintained at 100% allowing for precise interaction with the temperature controller and unparalleled system operation as indicated by maintenance of the highest possible coil log mean temperature difference (ΔT). The valve is easily set and adjusted to provide the precise flow required for the required control. Design calculation and commissioning effort normally required for control and balance valves are virtually eliminated because of it automatic pressure control regulator. A wide selection of actuators is available for the providing further control features the valve, making it an ideal selection for the simplest of two position control strategies or the precision required for modulating control and variable speed pump optimization. Features: stably controls flow through its range of operation unaffected by changes in system pressure 100% built-in control valve authority allows lower pump head than traditional valves and reduces energy consumption Three required valve functions; control, balance and flow limitation in one compact valve design Flow parameter is the only consideration, reducing valve selection engineering Constant regulation of flow limitation through independent pressure balancing User adjustable flow setting for maximum flow limitation Maintains linear characteristic of control voltage (0-10VDC) versus set flow rate when Danfoss proportional actuators are applied. Actuator can be set for equal percentage flow characterisitics Benefits: The valve combines two functions: Balancing & Control decreasing installation costs Through the automatic flow limiting function, On valve adjustment of flow reduces field commissioning Valve allows maximum coil and system differential temperature drops for optimum efficiency Operation costs reduced as much as 90% or more when properly applied with variable speed pumping Plug and Play for quick setup for balancing allowing immediate start up of unit Commissioning accomplished without use of specialized equipment Compact design allows installations in areas with limited space such as stand alone fan coils. 1

2 Technical Data: Nominal Diameter ½ ¾ 1" 1¼ Max flow (GPM) 3.) Diff. pressure 1.) 3 PSI - 60 PSI Max. working pressure 300 PSI Control range Acc. to standard IEC 534 control range does to infinity as Cv characteristic is linear Control valve characteristic Linear (could be converted by actuator to equal percentage) Leakage at 100 N No visable leakage For shut off function Acc. to ISO 5208 class A - no visable leakage Flow medium Water and water mixtures with secondary coolants (like glycols) 2.) for closed heating and cooling systems Medium temperature -15 F to 250 F (-10 C to 120 C) Connection Male NPT and Female solder tailpieces and gaskets or press fittings Actuator M30 x 1.5 Materials of Construction Body Brass (CuZn40Pb2 - CW 617N) O-Ring EPDM Springs W.Nr , W. Nr Cone (Pc) W.Nr Contact Seat (Pc) EPDM with Plug (Cv) CuZn40Pb3 - CW 614N water Seat (Cv) CuZn40Pb2 - CW 617N Screw Stainless Steel (A2) Flat Gasket NBR Sealing Agent Dimethacrylate Ester External Plastic parts POM Screws CuZn39Pb3 - CW 614N; W.Nr ; W.Nr ΔP across valve body P1-P3 (min~max) 2. Always confirm the application with the coolant manufacturer. 3. The max flow may be reduced with the combination of different actuators, please refer to the "recommended actuator" datasheet for more detail. Pc- Pressure controller part Cv- Control valve part 2

3 Technical Data (Cont.): Nominal Diameter 1½" 2" 2½ Max flow (GPM) Diff. pressure 1.) 4 PSI - 60 PSI Max. working pressure 250 PSI 300 PSI Control range Control valve characteristic Leakage acc. to standard IEC 534 Acc. to standard IEC 534 control range does to infinity as Cv characteristic is linear Linear (characterized by actuator to equal percentage) Max. 0.05% of Cv at 112 lbf Max % of Cv at 150 lbf Max. 0.01% of Cv at 225lbf For shut off function Acc. to ISO 5208 class A - no visible leakage - Flow medium Water and water mixtures with (secondary coolants) for closed oxygen tight systems Medium temperature -15 F to 250 F (-10 C to 120 C) Spindle Stroke, in (mm) 0.4" (10.2) 0.6" (15.2) 1" (25.4) Connection Flange - ISO 250 PSI Flange, gasket provided with valve for installation Actuator Danfoss standard Materials of Construction Body Grey iron EN-GJL-250 (GG25) Membrane EPDM W.Nr EPDM O-Ring EPDM Springs W.Nr , W. Nr W.Nr W. Nr Contact Cone (Pc) CuZn40Pb3 - CW 614N, W.Nr W.Nr NC W.Nr with water Seat (Pc) W. Nr W.Nr Cone (Cv) CuZn40Pb3 - CW 614N W.Nr NC W.Nr Seat (Cv) W.Nr W.Nr Screw Stainless Steel (A2) W.Nr Flat Gasket NBR Graphite gasket Non asbestos 1. ΔP across valve body P1-P3 (min~max) 2. Always confirm the application with the coolant manufacturer. Pc- Pressure controller part Cv- Control valve part 3

4 Recommended Actuators: Electronic Actuators for Code No. Style Power Signal 082F F H H8057 TWA-Z ABNM-Z, requires 082F1072 adapter AMV 110NL AME 110NL 24Vac On/Off 0-10 V DC 3-point floating 0-10 V DC 082H8048 AMI point 082H H3078 AME 15 QM AME 55 QM 0-10 V DC 0-10 V DC Travel Speed 1600s/in (64s/mm) 750s/in (30s/mm) 600s/in (24s/mm) 600s/in (24s/mm) 300s/in (12s/mm) 275s/in (11s/mm) 200s/in (8s/mm) Adaptable to: ½"- ¾" 1"- 1¼ 1½"- 2" 2½"- 4" 5"- 6" Maximum close off pressure for all actuators is 90psi (6.2 bar) Up to 70% of Max Flow Up to 55% of Max Flow Additional electronic actuators options are available for the. Other actuator options are modulating or floating with spring return with or without feedback. Refer to the actuator data sheet for full selection and information. Thermostatic Operators for Heating Applications, only for 1/2" and 3/4" valves* Code No. Style Description Sensor Capillary 013G5034 Valve mounted dial and sensor Built-in - RAE-K 013G5036 Valve mounted dial with remote sensor Remote 6.5ft (2m) 013G5458 FEV-Z Combined remote mounted dial and sensor Remote 26ft (8m) Required spindle extension adapter when isntalling thermostatic 003Z0248 N/A operators onto, 5 pcs. * Limited to 30% of maximum flow rate for 4

5 Ordering Information: Code No. Size Max. Flow (GPM) 003Z0302 ½" 4 003Z0303 ¾" Z0304 1" 11 Without P/T Plugs 003Z0305 1¼" Z0700 1½" 33 With P/T Plugs 003Z0710 2" 55 Tail pieces are required. Locking Ring Code No. Description 003Z0236 Locking Ring - installed to inhibit the unintentional changing of the valve setting. (For use with ½"-1¼" valves only) THREADED TAILPIECE KITS (two kits required per valve) Code No. Size Connection Type Description 003Z0282 1/2 003Z0283 3/4 003Z Z /4 TBA 1-1/2 TBA 2 NPT (Male) One Nut + One Threaded Tailpiece + One Gasket SOLDER TAILPIECE KITS (two kits required per valve) Code No. Size Connection Type Description 003Z0292 1/2" 003Z0293 3/4" 003Z0294 1" 003Z /4" TBA 1-1/2" TBA 2" Tail pieces with press fittings are available upon request. Solder One Nut + One Solder Tailpiece + One Gasket NOTE: valves and tailpiece kits sold separately. Two tailpiece kits required per valve. Ordering Example Requirement: 1/2 solder valve. Order: One (1) 003Z0312 valve and two (2) 003Z0292 1/2 solder tailpiece kits. 5

6 Ordering Information: (Cont'd) Code No. Size Max Flow (GPM) Flange Connection 003Z0702 2½" Z0703 3" 123 With P/T Plugs 003Z0704 4" Z0705 5" 396 PN16 With P/T Plugs 003Z0706 6" 638 Flange adapters and gaskets are required. ISO Flange Sets for use with Valves ISO Flanges / Gaskets Code No. Size Description D ½" D D ISO Flange D D Supplied with Valves 2½" Gasket for ISO Flange 6 6

7 Air handling unit Fan coil unit Application: The is a versatile device that can be used as an actuated or non-actuated balance valve. With an actuator mounted to the the assembly is a pressure independent control valve. Utilizing a proportioning controller, the creates a robust and stable energy management sub system using only the required flow and energy to offset facility heat transfer gains and losses. Traditional hydronic systems utilize a series of design decisions including constant speed flat curved pumps to maintain a stable system operating pressure and predictable valve and control operation. Utilization of variable speed drives on pumps creates a constantly fluctuating system pressure making valve flow unpredictable. Tuning temperature controllers becomes difficult and energy is wasted rather than saved due to the valve flow never being correct. The integrated differential pressure regulator virtually eliminates the problem of fluctuating pressures on control valve performance. The regulator immediately reacts to all changes in system pressure creating the stability to make the valve flow and control predictable. The end result is controllers and valves work as intended, not as they normally do, out of control. Energy is saved taking advantage of the greatly reduced amount of flow required for heat transfer of full valve authority for an air handling unit (AHU), fan coil, etc. With the the required designed flow to the AHU is met, subsequently simplifying the balancing of the system. This makes application of the ideal for HVAC system applications such as air handling units. Air handling units react quickly to changes in the building load and simple proportional control will not accurately regulate these systems. Using control integral action alone to adjust for this requires skill and extra commissioning to properly match the required settings to the application, sometimes over several seasons of operation. The differential pressure regulator acts as an extra sub-master controller and makes tuning the main controllers easier and less time consuming. Smaller building HVAC sub-systems such as fan coil units, or terminal unit heating coils and newer modern designs such as chilled beams or radiant cooling panels greatly benefit from application even when applied with simple thermostatic operation. The flow ranges of the are designed to correspond to flow rates typically applied in pipe sizing and selection. This makes control valve selection simple and easy; If a ¾ pipe is selected (typically between 1½ - 4 gallons per minute) select either a ½ or ¾ and set it for the required flow. No pressure calculations are required, valve authority doesn t need to be calculated and no calculations have to be performed to pre-set a balancing valve. If extra flow is determined to be required while tuning the installation, it s easy for the commissioning agent to reset the for any flow up to the rated range of the valve. The HVAC units and controllers will benefit from greatly enhanced ability to control, with no overflow. In a study of a large hotel with fan coils comparing a two position conventional control valve with static balancing from typical circuit setter style manual valves and simple on-off thermostatic control, the application of with the same type of control was shown to reduce required water flow sixty one percent even though the valve was cycled from full flow to no flow. This is because natural 7

8 Application (Cont.): pressure fluctuations and time lags in the piping system caused the conventional valve to always overflow, even though balanced. The dynamic regulator of the never allowed overflow to the coil and reduced the time lags associated with excessive flow rates. If proportional controllers were applied to properly match required flow rate to coil heat transfer, even more flow and energy could have been saved. Often times, there is no extra cost associated with application of this enhanced control as it is a normal component of most applied control systems in newer construction. allows hydronic HVAC systems to achieve the green and sustainable performance envisioned by their designers and owners. Owners benefit in significant reductions in commissioning time, energy cost in operation from reduced flow and less maintenance once the building is operating and occupied. Valve Operation/Design: Function: The combines aspects of both a differential pressure controller and a control valve into a single valve. P1 Available pressure P2 Regulated inlet pressure to control valve P3 Exit pressure of valve 1 Stuffing box 2 Spindle 3 Plastic ring 4 Control valve plug 5 Diaphragm 6 Regulator Spring 7 Regulator cone 8 Regulator seat 8

9 Differential Pressure Regulator: Flow enters the valve through the differential pressure regulator, which maintains a constant pressure difference across the control valve orifice. As pressure increases or decreases entering the valve in reaction to changes in flow and pump speed in the piping system (P1), the regulator diaphragm is balanced with the force of the spring keeping a constant pressure difference (P2-P3) between the water entering the temperature control valve and the leaving side of the valve. Whenever the pressure across the valve changes the hollow cone of the pressure regulator is displaced to a new position which brings a new equilibrium and therefore keeps the differential pressure at a constant level. The unique arrangement of the regulator always keeps pressure in equilibrium on the diaphragm. Even when the control valve completely closes, piping system static pressure is equalized with supply pipe static pressure being counter balanced by return pipe static pressure eliminating the potential damage to the regulator diaphragm found in other types of regulators. A nominal 3-5 psi differential is required from P1 to P3 for the valve and flow regulator operation. The regulator controls a range of system pressure to 60 psi differential (140 Ft. Hd.). Under normal system operation such as in variable speed pumping, as system flow is reduced, controlled pump speed reduces the system differential pressure (head) of the pump. In constant speed pumping applications reductions in system flow may result in increased system differential pressure (head) of the pump. Consult Danfoss if pump shutoff head exceeds 140 Ft. Hd. to prevent potential valve damage. 9

10 Control Valve Flow Coefficient and Characteristic, C v : STROKE STROKE 100% 80% 50% 50% 80% Q,K Q, C v 100% The linear characteristic of the valve allows for application flexibility. Stroke limitation allows the maximum flow of the valve to be adjusted. Control performance is not compromised by the stroke limitation; On-Off controls are not affected as they cycle between full and no flow; Proportional control actuators available for self calibrate aligning the valve stroke and control signal. Maintaining a linear characteristic allows for the predictability required to characterize the control signal when needed in application. Signal characterization is optimally done in the controller, but may be done through an available actuator which allows matching to the heat transfer characteristic. Flow Adjustment: Example: Red Required flow rate: 2.4 GPM Selected valve size: ½ Maximum Flow (Qmax)= 4 GPM Larger Sizes: Require adjustment with cresent wrench or allen key. Required flow from the ½"- 1¼" is easily adjusted without special tools; Remove the blue protective cap or mounted actuator on the to uncover the flow setting scale. The setting scale values of 100% (Open) to 0% (Closed) reflect flow percentages of the maximum flow capable through the sized. Adjust the required flow of the valve by lifting the grey collar and turning the collar to the percentage of required valve flow. Release the collar and the valve is set. 1 ½"- 4" Sizes Set the valve to 60% to achieve 2.4GPM through the valve. Danfoss recommends a presetting range from 20 % to 100 %. Factory presetting is 100 %. By turning the valve counter clockwise flow turning would increase the flow value while clock wise would decrease it. When valve is set to 80 % or more the red ring becomes visible. 1 ½"- 4" Sizes 5"- 6" Sizes

11 Valve Authority: Valve authority can be simply defined as the pressure drop of the control valve divided by the pressure drop of the system it serves e.g. the pipes, fittings, coils and other devices that become a part of the system. A = ΔP Valve ΔP Valve + ΔP System As a percentage ratio from 0%-100% the only operating condition that will ever allow the valve to operate with 100% authority is the laboratory condition and standardized test arrangement that is used to determine the flow coefficient (C V ) of the valve and its flow control characteristic. In standardized valve tests the pressure drop across the valve is controlled to maintain a constant pressure drop across the valve as it is operated and measured. When conventional valves are used in application the standard test conditions don t exist, pressure is not controlled on each valve, and the valve operation is influenced by the pressure drops of all of the other system components. Conventional valves show distortions to their standard test characteristics as shown. This makes tuning controllers difficult in the field if the valve has not been selected accounting for valve authority and coil heat transfer characteristics. % Branch Flow 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Authority 10% 0% 20% 40% 60% 80% 100% % Valve Lift Authority 33% 50% Authority 100% were selected for 125 Feet of Head, and the 5 PSI rule were applied, then the authority calculation would be; A = ΔP V ΔP V + ΔP S ΔP V = 5 x 2.31 = ΔP S = = A = = or 9.2% A conventional valve with an equal percentage characteristic functions as if it is a linear valve in this system! The integrated differential pressure regulator of the essentially creates the same operating condition utilized for standardized valve rating tests in the field overcoming the hydraulic effects of the piping system components through its active control regulation. The linear characteristic of the valve is maintained as linear in the standards lab and the field. Enhanced range of control is achieved by limiting the stroke of the control valve to balance instead of an extra internal orifice which would reduce the control valve authority at low flows. When an equal percentage characteristic is required for superior modulating control, the control signal from the controller should be scaled. Either an actuator that allows user scaling to fit the proper control signal characteristic to the controlled coil heat transfer characteristic is applied, or a simple math routine is implemented in the controller to modify the normally linear output of the proportional control algorithm to the complementary signal required for the coil. The coil design and selection and thus the hydronic system design that follows it is the determining factor in linearizing the control signal, with low water side design ΔT (10 F -20 F) having characteristics that are highly curved, and high ΔT (60 F) as found in high efficiency condensing boiler hot water system design more linear characteristics. Your Danfoss hydronic system professional is your technical resource for assistance should you require more knowledge in this area. Rules of thumb have been utilized over the years with recommendations such as Utilize a 5 psi pressure drop for valve flow coefficient selection. The pressure drop of a system is equal to the operating head of the pump at design conditions. As an example if a pump 11

12 Service/Installation: Typical hydronic system design recommendations and specifications for coil application typically require components for coil isolation, test and balance pressure and temperature measurement, union pipe connection and a dirt and sediment strainer. In addition, it is considered good practice to provide flexible connections to the coil to ease Installation time and allow for minor positioning adjustment of the piping system and any expansion or contraction issues. Typical System Design The coil package allows for all required piping connections and is available in several configurations adaptable to all project installations. In addition, it is delivered to the installing agency packaged and tagged for the specific coil installation. The coil and control devices are easily serviceable through the included ball service valves, and ease installation through the variety of union tail piece sizes and pipe configurations, reducing the required fittings from larger riser piping sizes to that for the smaller coil branch piping. When a strainer is included, the optional capped ball drain valve allows for hose connection and back flushing of the strainer. Pressure/Temperature reading ports allow all commissioning measurements to be read and recorded. The actuator for the is a standard M30 x 1.5 connection with 5.5 mm lift allowing for a variety of actuators to be applied. Should service to the control valve packing ever be required, the features a back seating plug design that allows for the packing to be removed and replaced without removal of the valve from the system. The may also be fitted with an optional manual service handle. Under normal operation, the connected actuator shields the flow setting mechanism and prevents unauthorized adjustment. As an added precaution, the flow setting mechanism can be locked with an optional locking ring to prevent tampering with flow settings. The locking ring is inserted in a groove below the scale. The locking ring hinders the ability for the grey plastic setting ring to lift ensuring no possible changes to the s setting. 12

13 Typical Specification: Revised Construction Specification Institute standard numbering is utilized. The specifier is advised to coordinate product provision with other specialty specification areas as more than one may apply. The model for this specification and suggested placement is based on the Unified Facilities Guide Specifications downloadable from the Whole Building Design Guide web site (www. wbdg.org) and found under the Documents & References specifications library. The WBDG web site is offered as an assistance to the building community by the National Institute of Building Sciences (NIBS) through funding support of several US government agencies. SECTION DIRECT DIGITAL CONTROL FOR HVAC AND OTHER LOCAL BUILDING SYSTEMS PART 2 PRODUCTS 2.6 AUTOMATIC CONTROL VALVES Valves shall have stainless-steel stems and stuffing boxes with extended necks to clear the piping insulation. Valve bodies shall meet ASME B16.34 or ASME B16.15 pressure and temperature class ratings based on the design operating temperature and 150 percent of the system design operating pressure. Unless otherwise specified or shown, valve leakage shall meet FCI 70-2 Class IV leakage rating (0.01 percent of valve Kv). Unless otherwise specified or shown, valves shall be two way pressure independent globe-style bodies. Unless otherwise specified: a. bodies for valves 2 inches and smaller shall be brass or bronze, with union ends b. bodies for valves 2 to 3 inches shall be of brass, bronze or iron. c. bodies for valves 2.5 inches and larger shall be provided with flanged-end connections. d. valve and actuator combination shall be normally open or normally closed as shown Two-Way Pressure Independent Globe Valve Two-way modulating valves used for liquids. The valve shall be two way globe style with integrated differential pressure control regulator. Where indicated modulating proportional valve application shall utilize controller or actuator to match required control signal to complement controlled coil heat transfer characteristic for linear control. The valve shall; a. provide integrated pressure regulator; regulator to control pressure across control valve orifice. b. provide regulator incorporating EPDM diaphragm, stainless steel spring and pressure control disc. Pressure control seat shall be brass construction with vulcanized EPDM. c. provide counterbalance of supply pipe pressure to return pipe pressure across diaphragm to prevent diaphragm damage when control valve is closed d. provide user adjustable maximum flow within valve control range; Adjustment method shall indicate percentage of valve flow range and utilize spring locked method of adjustment. e. regulate internal control valve differential pressure to provide 100% control valve authority. f. shall have linear flow characteristic. g. provide back seated globe design to allow service of packing under pressure without leakage. h. provide entering to leaving (P1-P3) pressure control across valves ½ ¾ in size from 3PSI 60PSI. i. provide entering to leaving (P1-P3) pressure control across valves 1 1¼ in size from 3PSI 60PSI. j. provide entering to leaving (P1-P3) pressure control across valves 1½ 2 in size from 4PSI 60PSI. k. provide union connections l. utilize stainless steel internal trim with brass globe and seat. m. utilize threaded actuator connection n. flow requirements shall be sized to provide nominal body selection no more than one size smaller to corresponding nominal pipe connection. a. ½ bodies shall be utilized for ½ and may be utilized for ¾ pipe connection and flow less than 4 GPM. b. ¾ bodies may be utilized for ¾ pipe and may be applied to 1 pipe connection with flow less than 6.6 GPM. c. 1 bodies may be utilized for 1 pipe and may be applied to 1¼ pipe connection with flow less than 11 GPM. d. 1¼ bodies may be utilized for 1¼ and may be applied to 1½ pipe connection with flow less than 17.5 GPM. e. 1½ bodies may be utilized for 1½ pipe and may be applied to 2 pipe connection with flows less than 33 GPM. f. Flows less that 55 GPM may use 2 bodies. g. Flows less than 88 GPM may use 2-1/2 bodies. h. Flows less than 123 GPM may use 3 bodies. i. Flows less than 167 GPM may use 4 bodies. j. Flows less than 396 GPM may use 5 bodies. k. Flows less than 638 GPM may use 6 bodies. 13

14 Typical Specification (Cont.): Duct-Coil and Terminal-Unit-Coil; Hot and Chilled Water Systems Control valves utilized for controlled flows shall be proportionally modulated. Control valve shall be integrated into coil assembly package. Coil assembly package shall conform to requirements of other common valves as specified in Section Common Piping For HVAC. Coil assembly package shall; a. provide integrated ball valve and wye pattern strainer. Strainer shall be #20 mesh. Strainer valve shall provide pressure and temperature measurement port with integrated positive shutoff gland seal. Strainer valve shall have plugged ¼ female NPT accessory port. Strainer valve shall provide integrated ¼ ball drain valve with cap and common hose connection. Strainer valve shall provide integrated union connection and tailpiece. Strainer valve shall be provided to match flow requirements for connected control valve. b. provide union connection entering and leaving piping of coil. Union connection fitting shall include three accessory ¼ female NPT tapped ports for test and other HVAC devices. Provide pressure and temperature measurement port with integrated positive shutoff gland seal in unions entering and leaving coil. Provide manual air vent in union leaving coil. Provide ¼ threaded plugs in all unused union ports. Provide union nut, tailpiece and o-ring seal, or appropriate connectors to flexible piping. c. provide ball shutoff valve with integrated union. Valve shall provide pressure and temperature measurement port with integrated positive shutoff gland seal. Valve shall have plugged ¼ female NPT accessory port. Provide union nut, tailpiece and o-ring seal, or appropriate connectors to flexible piping. d. provide flexible piping for connection to coil. Piping shall be configured such that unions are hard mounted to coil either directly or with elbows as appropriate to allow straight flexible connection without ninety degree change in direction. Flexible pipe shall be mounted between coil union and control valve or strainer valve. 14

15 Dimensions: ½"- 1¼" L1 H3 H4 H2 H1 TWA-Z + ABNM + AMV (E) 110 NL + AMI Valve size ½ ¾ 1 1 ¼ Dimensions, in (mm) L1 L2* H1 H2 H3 H (65) 3.23 (82) 4.09 (104) 5.12 (130) 4.69 (119) 5.60 (142) 6.82 (173) 8.12 (206) 2.95 (75) 3.03 (77) 3.5 (88) 4.02 (102) 0.98 (25) 1.30 (33) 1.65 (42) 1.97 (50) 4.33 (110) 4.53 (115) 5.12 (130) 5.71 (145) 5.71 (145) 5.91 (150) 6.50 (165) 7.09 (180) Weight lb (kg) 1.06 (0.50) 1.43 (0.65) 3.20 (1.45) 4.87 (2.20) *L1, Length varies with selected tailpiece. Dimensions shown are approximate and should be verified to application and selected valve kit 15

16 Design: 1. Shut off screw 2. Main spring 3. Membrane 4. DP cone 5. Seat 6. Valve body 7. Control valve cone 8. Locking screw 9. Scale 10. Stuffing box 11. Spindle 1½"- 2" 2½"- 4" 16

17 Dimensions: 1½"- 2" L1 AME 15 QM + H2 b H1 H5 Valve size 1½ 2 Dimensions, in (mm) L1 H1 H2 H5 4.3 (110) 5.1 (130) 7.6 (192) 7.6 (192) 6.9 (174) 6.9 (174) 12.4 (315) 12.4 (315) Weight lb (kg) 15 (6.9) 17 (7.8) *L1, Length varies with selected tailpiece. Dimensions shown are approximate and should be verified to application and selected valve kit 2½ " - 4" AME 15 QM + Valve size 2 ½ 3" 4" Dimensions, in (mm) L1 H1 H2 H (290) 12.2 (310) 13.8 (350) 9.2 (233) 9.3 (236) 9.8 (249) 6.8 (172) 7.0 (177) 7.4 (187) 14.7 (373) 14.8 (376) 15.3 (389) Weight lb (kg) 84 (38) 99 (45) 126 (57) 17

18 Design (Cont.'d): 1. Valve body 2. Valve seat 3. DPC cone 4. Cv cone 5. Controller casting 6. Rolling diaphragm 7. Adjusting screw 8. Bellow for pressure relief on DPC cone 5" 6" 18

19 Dimensions (Cont.): 5" 6" AME 55 QM + 5" AME 55 QM + 6" Valve size 5" 6" Dimensions, in (mm) L1 H1 H2 H (400) 18.9 (480) 9.1 (232) 10.6 (268) 20.4 (518) 18.3 (465) 20 (507) 20.4 (518) Weight lb (kg) 188 (85.3) 304 (138) 19

20 Danfoss can accept no responsibility for possible errors in printed materials and reserves the right to alter its products without notice. All trademarks in this material are property of the respective companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved. Master Distributor Indianapolis, IN Toll Free: Tel: , Fax: Danfoss Baltimore, MD Tel.: , Fax: