Safety Relief Valves

CIRCOR Energy offers several lines of spring-loaded safety relief valves ideally suited for pipe and pressure vessel protection in Upstream, Midstream and Downstream Hydrocarbon applications. Useful for air, gas, liquid and mixed phase services, these valves are designed for reliable operation, long seat life and easy, low cost field repair.  

Our valves are constructed with the highest quality materials and are designed and tested to meet ASME Section VIII UV Code as well as API piping standards.  A complete range of API orifices from D through T sizes plus inlet/outlet flange connections from 1”x2” through 8”x10” are available in conventional and balanced bellows spring-loaded relief valves.

Please click on a link below for more information.

Ball & Seat

Brand Description Product Model Appropriate Applications
Hydroseal 1/4"-1" NPT - Max Set Pressure 12,500 PSI 1-4 Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 1"-3" NPT - ANSI Class 150, 300, 600, 900, 1500 5-8 Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control

Disc & Seat

Brand Description Product Model Appropriate Applications
Hydroseal 3/8"-3" NPT - ANSI Class 150, 300, 600, 900, 1500, 2500 1500 Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 1"-8" - ANSI Class 150, 300 LT, 300, 600 2500 Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 1 1/2"-3" NPT - ANSI Class 150, 300, 600, 900, 1500 HC Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 1 1/2"-2" NPT - 2000 PSI Max Set 1200 Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 1/2"-1" NPT - 2000 PSI Max Set 1400 Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 1/2"-3" NPT - 300 PSI Max Set Brass Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control
Hydroseal 3/4"-1" NPT - 3500 PSI Max Set FT Series Compressor Stations, Gas Gathering Systems, Inline Testing Devices, Over Pressure Protection, Pressure Control