RegO B-9422NH Pressure Relief Valve

RegO B-9422NH Pressure Relief Valve is a brass, external hydrostatic relief device in RegO’s 3127 family, engineered to protect LPG and NH3 piping and shut‑off assemblies from overpressure. It features a 1/4" MNPT container connection and a 275 PSIG start‑to‑discharge setting, providing a defined relief point to safeguard downstream components. The brass body and seat disc assembly are built for durability, with an operating temperature range of -40°F to 165°F, suitable for outdoor or harsh environments. Typically installed between shut‑off valves or on the side boss of RegO shut‑off valves, it offers a controlled discharge path when pressure exceeds the set point. Common applications include propane/butane distribution, LPG bulk storage, and related ammonia gas service where external relief protection is required.