This one valve design functions as an all-purpose backpressure valve in many applications: Relief: protects systems and equipment from overpressure/pressure surges. By-Pass: prevents pumps from "dead heading". Back-Pressure Regulator: maintains necessary reverse pressure in closed loop systems. Back-Pressure Valve: enhance pump performance by maintaining backpressure on the pump outlet. Anti-Siphon: used on the outlet of a pump wherever gravity or other downstream conditions may create negative pressure (siphon) and drain a tank. The valve ispre-set to open under pump pressure, but closes bubble-tight when the pump is shut off. Because of the design of the RVDT, this valve actually closes more tightly when unwanted siphon occurs.
- Natural polypropylene
- PTFE diaphragm
- Relief setting is adjustable from 5 psi to 125 psi
- Maximum inlet pressure is 150 psi
- Precision machined with FNPT connections
- Assembled valves are 100% individually tested