Vacuum relief valve

HV Compatible Pressure relief @ 10 PSIG (±15%) 10CFR851 compliant ISO 9000 Compliant Leak tight to 2 x 10-8 std. cc/sec of Helium 316 Stainless steel body, spring & stem with Viton sealed seat Temperature range -20ºC to 150ºC Compact design brushing with 1/2" FPT connection Reseats once pressure is relieved Description Pop-off Pressure Relief MDC's pop-off bushing is designed as low cost pressure safety device to protect vacuum systems against over-pressurization during back-fill or from an accidental increase in pressure due to a system malfunction. The Pop-off pressure relief features stainless steel constructed body, spring and stem with Viton seat. They are designed for use in HV applications.