Walchem - Anti-Syphon/Back Pressure Valves

Provide positive discharge pressure to stabilize pump output and prevent syphoning. Rugged valves are constructed from PVC, PP, PVDF, or Stainless Steel components to ensure long life and reliability. Spring loaded PTFE faced diaphragms provide positive discharge pressure to stabilize pump output and prevent syphoning. All valves are screw adjustable from 0 to 150 psi standard. Ideal for LK and EHE metering pumps, but can be used with any metering pump requiring back pressure adjustment or anti-syphon protection.