Shipped preset to your system specifications
Large nozzle for high flow
The Kunkle 337 pressure relief valve is
specifically recommended for WWTP
blower service. It is designed to provide
high flow discharge capacity at a preset
pressure with minimum pre-open leakage.
All valves are set, pressure tested
and sealed at the pressure you specify
when placing your order.
Pressure range of the Model 337 is 1
to 60 psi. To minimize leakage, we recommend the set pressure
be 10-15% above system operating pressure or 5 psi, whichever is
greater. Valves set at or above 15 psi are ASME certified.
Cast iron body has brass internals, stainless steel spring and a
bronze male threaded connection. The Model 337 has a T-handle
lift device for easy testing. Temperature range is -20° to 406°F.