For the past 15 years, pilot-operated safety relief valves (POSRVs) have effectively and reliably protected economizers on Section I power boilers in overpressure situations, working in tandem ...

Model 20-500 direct-acting relief valve comes in 1/4-in. NPT or high pressure 9/16-18 coned fittings for liquid or gas up to 60,000 psi. SC Hydraulic Engineering 1130 Columbia St. Brea, CA 92821 ...

CO 2 refrigeration (R-744) systems operate at significantly higher pressures compared to legacy hydrofluorocarbon (HFC) systems. For example, on hot summer days, between its medium-temperature ...