Circle Seal 5132B-2M-1725 Pressure Relief Valve

The Circle Seal 5132B-2M-1725 Pressure Relief Valve is a compact inline pop‑off valve from Circle Seal’s 5100‑Series designed to guard small‑bore process lines and instrumentation circuits against overpressure. The unit is specified with a cracking pressure of 1,725 psi (±5%), and supports inline end connections with a 1/4 in valve size for straightforward installation in standard piping. Constructed with a brass body and Viton O‑rings, it uses inline male/female pipe interfaces to connect inlet and outlet ports. Typical operating temperature range is -20 to 400 °F, and the valve accommodates pressures from roughly 10 to 2,400 psi, depending on model variant. The 5132B‑2M configuration is designed for reliable reseat after relief, featuring tamper‑proof adjustment and the potential for PED certifications and CE marking on many models. Circle Seal highlights include zero leakage up to about 95% of cracking pressure and positive reseat characteristics, which helps minimize backflow and maintain process integrity when relief is not active. This model is well suited for compact, dependable relief protection in process lines, instrumentation panels, and small hydraulic or pneumatic circuits where space is at a premium and precise set pressures are required.