Kunkle 230/330/330S/333S

Compact high pressure relief valves for air and gas on multi-stage compressors, receivers, storage bottles and breathing air systems. Urethane soft seat, −20°F to 185°F, 300 to 7500 psig. The 230 is non-code; the 330, 330S and 333S carry ASME Sections VIII and XIII ‘UV’ and National Board certification.