® AquaMatic Product Specifications Metal Diaphragm Valves Metal Diaphragm Valves n Features and Options n Low Pressure Loss ....................................The AquaMatic Y-pattern diaphragm valve features a large seat opening and high lift-disc for higher flow rates at a lower pressure loss than other comparable valves n Positive Control .........................................A separate valve flow and control chambers permits positive sealing without springs. The optional spring- assist open feature is available for low pressure and self-draining applications. n Cost Effective .............................................The AquaMatic is a cost-effective solution both in initial cost, as well as lifetime maintenance expenses. n Long Diaphragm Life ...............................Separate diaphragm chambers protects the diaphragm from the flow stream, while allowing the valve to be serviced in-line. n Durable Construction................................The valve is constructed of cast iron, brass, stainless steel and Nitrile elastomer components, giving an unparalleled service life of three years or longer depending on the application’s environment. n Design and application engineering service n Optional adjustable flow rate control n Optional seal and diaphragm materials for n Optional spring assist special applications n Optional position indication n Handles liquid and gases n Optional all stainless internals n Adaptable to wide variety of control devices (3" and 4" sizes only) n Principles of Operation ON-OFF CONTROL ON-OFF LINE NO PRESSURE PRESSURE AIR UPPER AIR LOWER VENT CHAMBER VENT CHAMBER VALVE VALVE CLOSE OPEN LINE LINE FLOW PRESSURE PRESSURE Drip-Tight Closing: Closure is obtained by directing Full Open Operation: When closing pressure line pressure or equivalent independent pressure in upper chamber is relieved by venting the pilot into the upper chamber. This pressure on the line, the valve opens, positively, by line pressure large diaphragm area causes the valve disc to seal on the disc. against the seat. (Ratio of diaphragm to disc area is 1.3 or greater.) n Applications In addition to the water treatment process systems, the valves are used in a wide variety of applications. Some of the typical applications are: n Concrete Additive n Cooling Towers n Conveyor Systems n Vacuum Control n Agricultural Irrigation n Level Control Systems n Air Control Systems n Systems n Turf Irrigation n Sand Blasting n Dust Suppression n Machine Hydraulic n Air Dryers n Car Wash Systems n Plastic Molding n Cooling Control n Pump Controls n Process Water Systems n Machinery n Street Cleaning Vehicles n Fuel Handling n Laundry Equipment n Nitrogen Handling n Centrifugal Separators n HVAC Systems Pressure Drop (Bar) 681.4 3000 454.2 2000 227.1 1000 204.4 900 181.7 800 159.0 700 136.3 600 113.6 500 90.8 400 68.1 300 45.4 200 22.7 100 20.4 90 18.2 80 15.9 70 13.6 60 11.4 50 9.1 40 6.8 30 4.5 20 2.3 10 n Series 420 Valves n Series VAV Air Valves Standard valves are normally open. Body and cap are Standard valves are normally open. Body and cap are of of cast iron. Preformed stress-relieved diaphragm of cast iron. Preformed stress-relieved diaphragm of Nitrile Nitrile (Buna N) on Polyamide, and static seals are Nitrile, (Buna N) on Nylon, and static seals are FKM & Hycar, stainless steel and brass internal parts. stainless steel and brass internal parts. Pipe sizes are 3/4 to 3-inch threaded (N.P.T. or B.S.P.); Pipe sizes are 3/4 to 3-inch threaded (N.P.T. or B.S.P.); 3-inch through 6-inch flanged drilled in accordance with 3 to 4-inch flanged drilled in accordance with ASA16.1 ASA16.1 class 125, or BSP4504. class 125, or BSP4504. n Options n Options Normally closed, spring assist closed, spring assist open, Normally closed, spring assist closed, spring assist open, limit stop, position indicator, high temperature service, FKM diaphragm for high temperature service. brass body and cap (3/4 to 3-inch only), optional seal and n Operating Specifications diaphragm materials for special application, stainless Working Pressure.................125 PSI (8.6 bar) maximum steel internal parts. Temperature .........................150ºF (65ºC) n Operating Specifications 250ºF (120ºC) – Optional Working Pressure.................125 PSI (8.6 bar) Maximum Temperature .......150ºF (65ºC) 250ºF (120ºC) – Optional n Metal Body Valves D 3 Flow Rate (m /hr) 20 1.38 f C 10 0.69 9 0.62 F 8 0.55 7 0.48 s C 6 0.41 5 0.34 4 0.28 3 0.21 E 2 0.14 s A (Threaded) Cv1 0.07 Flow Rate in Gallons per Minute (GPM) (gpm x 3.78 = lpm) Flow Rate f A (Flanged) Continuous Flow Intermittent Flow n Flow Thru Metal Diaphragm Valves Model Number Dimensions (Approximate) Pipe 420 VAV Size s f s f s f CV (3) Series Series Unit A A B B C C D E(1) F(2) 3/4" V42B VAVB 11.4 in. 3.69 4.25 3.75 2.75 1" V42C VAVC 12.8 mm 94 108 95 70 1-1/4" V42D N/A 26.5 in. 4.75 5.37 4.00 3.50 1-1/2" V42E VAVE 32.5 mm 121 137 102 89 in. 6.62 7.25 5.37 4.87 2" V42F VAVF 56 mm 168 184 137 124 2" V42G VAVG 68 in. 7.37 8.00 5.75 5.50 2-1/2" V42H VAVH 84 mm 187 203 146 140 in. 9.00 9.75 6.75 7.25 3" V42J VAVJ 134 mm 229 248 171 184 in. 10.62 10.75 7.00 7.25 6.00 0.75 3" V42J VAVJ 134 mm 270 273 178 184 152 19 in. 11.75 14.75 10.00 8.75 7.50 0.75 4" V42K VAVK 275 mm 298 375 254 222 191 19 in. 17.00 19.00 13.50 15.75 9.50 0.87 6" V42L N/A 680 mm 432 483 343 402 241 2 (1) Bolt circle diameter (2) Bolt hole diameter (3) CV = Flow rate in gpm of water at 60°F @ 1psi pressure drop For More Information: Contact the Residential and Commercial Group at (815) 964-9421 or (800) 245-9421 or visit www.gewater.com For Spare Parts: Visit www.aquamaticstore.com © Copyright 2006 General Electric Company Printed in USA, P/N 1163574 Rev. F V42B V42C V42D V42E V42F V42G V42H V42J V42K V42L Flanged Threaded s B (Threaded) f B (Flanged) Pressure Drop Pressure Drop (PSI)