Cashco 4381-SST-S36-1500Psig-400 Pressure Regulator

The Cashco Model 4381-SST-S36-1500Psig-400 Pressure Regulator is a stainless-steel, 1/2-inch NPT pressure-reducing regulator designed for high-inlet service in process piping. It accepts inlet pressures up to 1500 psig and, when configured with the S36 range spring, regulates downstream pressure in the 270–400 psig range (maximum setpoint near 400 psig). The regulator features a stainless-steel body with S36 trim and supports a metal-seat configuration for robust performance across gas, liquid, and steam service; for critical cleanliness, Cashco specifies cleaning to S-1134. Cryogenic capability is available via the Option -36 configuration, extending its use into low-temperature applications while maintaining the same general pressure-regulating function. With its compact 1/2-in NPT connections, this regulator is well-suited for upstream gas distribution, pilot lines, or instrumentation feeds where precise downstream pressure control from a high-pressure source is required.