AsahiAmerica Constant Flow Valves AsahiAmerica Constant Flow Valves

Asahi/America Constant Flow Valves

Asahi/America Constant Flow Valves PVC & CPVC ANSI Flanged 1/2”, 3/4” In Line Type Spring 1”, 2”, 3”, 4” Plug Orifice Y Type Spring

Asahi/America Constant Flow Valves Features & Benefits High durability and resistance to chemicals High accuracy Flexible flow rate Opening degree indicator High durability and resistance to chemicals The spring is made of stainless steel with coating of PCTFE. ETFE acts as an excellent gas barrier to chemicals such as Cl 2, HF, HNO 3, HCL and so on. The superior durability has been proven by conducting a repeated spring fatigue test. (1 Million cycles)

Asahi/America Constant Flow Valves Flexible flow rates Opening degree indicator Calibrated Flow Dial

Asahi/America Constant Flow Valves Nominal Size 1/2”, 3/4”, 1”, 2”, 3” , 4” Body material PVC (Unplasticized Polyvinyl Chloride) Flange connection ANSI, DIN etc. Upstream line Pressure ranges. Pressure differential range for function: Working Temp. : (Please specify according to upstream pressure) Types Under 35 psi 36 - 70 psi 71 - 110 psi 111 - 150 psi 2. 85 - 14. 22 psi : Type A & B 4. 27 - 21. 33 psi : Type D (only 3”) 4. 27 - 28. 45 psi : Type C 30 - 120 °F

Asahi/America Constant Flow Valves Rangeability

Asahi/America Constant Flow Valves Type - A Fluid flows through the valves internals Suitable for semi-conductor. (Ultra pure water line) Flow Type - B Flow rate setting range is large. (Covers small flow rates to large flow rates) Flow

Asahi/America Constant Flow Valves Type - C Range of working differential pressure is large. (For lines with large pressure differential between upstream & downstream) Flow Type - D A large flow rate can be set. Flow

Asahi/America Constant Flow Valves P 2 P 1 P 2

Asahi/America Constant Flow Valves Flow Quantity High accuracy It is possible to change the flow quantity by changing the position of the plug. Pressure Differential

Asahi/America Constant Flow Valves C type (2”) B type (2”) 39. 6 35. 2 Flow (gal/min) 30. 8 26. 4 22. 0 17. 6 13. 2 8. 8 4. 4 0 2. 85 5. 7 8. 6 11 Differential Pressure (psi) 2. 85 psi - 14. 22 psi 14. 22 0 2. 85 5. 7 8. 6 11. 4 14. 3 17. 1 20 22. 9 25. 7 28. 6 31. 4 34. 3 37. 1 Differential Pressure (psi) 4. 27 psi - 28. 45 psi

Asahi/America Constant Flow Valves Parallel Lines LINE A Q 1+Q 2 LINE B Q 2 CV = Q Ö[s. g. / DP] (Q = flowrate (gpm) s. g. = specific gravity)

Asahi/America Constant Flow Valves < Fish Farms > <Aquariums> AV Constant Flow VALVE sea water tank

Asahi/America Constant Flow Valves Applications: < Salt Water > The protection of ion-exchange membranes. Flow quantity is fixed No Automation or Manual Adjustment Required

Asahi/America Constant Flow Valves Water Supply or Filtration AV Constant Flow VALVE Water supply equipment