1. Asahi/America Constant Flow Valves

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

3. 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) Features & Benefits Asahi/America Constant Flow Valves

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

5. Nominal Size Body material Flange connection Upstream line Pressure ranges. Pressure differential range for function: (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 Working Temp. : 30 - 120 °F ANSI, DIN etc. PVC (Unplasticized Polyvinyl Chloride) 1/2”, 3/4”, 1”, 2”, 3”,4” Asahi/America Constant Flow Valves

6. Rangeability Asahi/America Constant Flow Valves

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

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

9. P1 P2 Asahi/America Constant Flow Valves

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

11. B type (2”) C type (2”) Differential Pressure (psi) Flow ( gal/min ) 2.85 psi - 14.22 psi 39.6 35.2 30.8 26.4 22.0 17.6 13.2 8.8 4.4 0 2.855.7 8.6 11.414.317.12022.9 25.7 28.631.434.337.1 35.2 30.8 26.4 22.0 17.6 13.2 8.8 4.4 0 2.855.7 8.6 1114.22 Flow ( gal/min ) 39.6 Differential Pressure (psi) 4.27 psi - 28.45 psi Asahi/America Constant Flow Valves

12. Q1+Q2 Q1 Q2 LINE A LINE B Asahi/America Constant Flow Valves Parallel Lines C V = Q  s.g. /  P] (Q = flowrate (gpm) s.g. = specific gravity)

13. sea water tank AV Constant Flow VALVE Asahi/America Constant Flow Valves

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

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