Walchem’s economical Tri-Purpose Valves are three valves in one. Installed in one direction, the spring loaded PTFE faced diaphragm provides 30 psi of back pressure and anti-syphon protection. Installed in the opposite direction, it provides pressure relief that is adjustable from 30-125 psi.
Anti-Syphon Valve - Enables feeding into suction/negative pressure applications or metering fluids “downhill”
Back Pressure Valve - Provides accurate metering of fluids into low or open discharge pressures
Pressure Relief Valve - Adjustable between 30 psi and 125 psi