Materials: Standard models of Relief Valves are constructed of 316 stainless steel with selected components
Series RVP (Metal Seat) and RVS (Soft Seat) relief valves provide reliable venting of gases or liquids for set pressures from 1,500 psi to 60,000 psi. Standard temperature range on RVP models is -423° F to 400° F. High temperature option to 750° F also available. Temperature range on RVS model is 32° F to 400° F. (Note: Seat material is Arlon). These precision valves are designed for pressure gas systems, cryogenic systems, petrochemical applications and other special systems. They are capable of handling air, gases, steam, vapor and liquids. They are not recommended for steam boiler applications and are not ASME code stampable. Relief valves are designed to open proportionally to increasing back pressure and, therefore, are not recommended for applications requiring immediate full valve flow at set pressure (such as decompositions, polymerizations, etc.). Full flow of relief valve is defined at 10% over set pressure.