Safety and Pressure Relief Valves are critical components used in oil & gas, power generation, chemical, petrochemical, and process industries to protect equipment and pipelines from overpressure conditions.
Size: ½” up to 24” (DN 15 up to DN 600)
Pressure Rating: ASME B16.34
Materials: Carbon Steel, Stainless Steel (SS 316, SS 304), Alloy Steel, Duplex Stainless Steel, Super Duplex Stainless Steel, Monel, Inconel, Hastelloy, Bronze
Design Standard: ASME Section VIII, API 520, API 526, API 527, ISO 4126, EN 12516
Pressure / Temperature Rating: ASME B 16.34
Test (Inspection) Standard: API 527, ISO 4126-1, ASME PTC 25, EN 12266, API 576
Construction Details:
Types: Spring Loaded, Pilot Operated, Balanced Bellows
Bonnet Type: Open Bonnet, Enclosed Bonnet, Packed Bonnet
Sealing Mechanism: Metal-to-Metal, Soft Seat
End Connection: Flanged (RF, FF, RTJ), Screwed (NPT, BSPT, BSPP), Socket Weld, Butt-Weld
Operator / Actuator : Spring-Loaded, Pneumatic Actuated, Pilot Operated
Types of Safety & Pressure Relief Valves:
Conventional Safety Relief Valves – For general overpressure protection
Balanced Bellows Safety Valves – Suitable for backpressure applications
Pilot-Operated Safety Relief Valves (POSRV) – High-precision pressure control
Thermal Relief Valves – Used for thermal expansion protection
Vacuum Relief Valves – Prevents vacuum conditions in storage tanks
Low-Pressure Safety Valves – Used in low-pressure applications such as storage tanks and venting systems
Cryogenic Service
Safety & Pressure Relief Valves can be customized for cryogenic applications with special materials and extended bonnets to withstand temperatures down to -196°C. Cryogenic testing ensures proper sealing, minimal torque, and compliance with stringent safety standards.
