Technical Specifications Category Specification Type Pilot-Operated Safety Relief Valve Service Gas, Liquid, Steam Design Standards ASME Section VIII, API 520 Orifice Sizes D through T (and larger) per API standards Size Range 1" x 2" through 4" x 6" (inlet x outlet) and larger Connections Flanged (150# to 2500# RF/RTJ) Set Pressure Range 15 to 6000 psig (1 to 413 bar) Temperature Range -450°F to 1000°F (-268°C to 538°C) with appropriate pilots Body Materials Carbon Steel, Stainless Steel, Alloy Steels Pilot Options Standard, Balanced Bellows, Vacuum, Temperature Actuated Typical Applications Oil & Gas Production Facilities Refinery and Petrochemical Processes Chemical Processing Plants Power Generation Systems High-Pressure Gas Storage and Transmission Cryogenic Services