Pilot Operated Safety Valve Manufacturer in USA

SVR Global is a leading pilot operated safety valve manufacturer in USA, delivering API- and ASME-certified safety valves designed to meet the highest standards of performance and durability. With strong expertise in engineering, precision machining, and quality assurance, we serve In industries where high pressure, accuracy, and safety are critical, pilot operated safety valves (POSVs) are the preferred choice over conventional designs. Known for their reliability and stable set pressure even under backpressure, pilot operated safety valves protect equipment, pipelines, and personnel from overpressure incidents in demanding industrial environments.

What is a Pilot Operated Safety Valve?

A pilot operated safety valve is a pressure relief device that uses an auxiliary pressure pilot to control the main valve. When system pressure exceeds the set point, the pilot senses the overpressure and allows the main valve to open, venting excess pressure.

Compared to spring-loaded conventional safety valves, POSVs offer:

• Stable performance in high pressure and temperature systems
• Better sealing tightness
• Higher capacity for large-scale applications
• Reduced susceptibility to backpressure effects

Advantages of Pilot Operated Safety Valves

·        High Accuracy & Tight Sealing

·        Handles High Backpressure

·        Greater Flow Capacity.

·        Long Service Life

·        Cost Efficiency

·        ASME Code Compliant

Parts of a Pilot Operated Safety Valve

·        Main Valve Body – Houses the disc, seat, and nozzle.

·        Pilot Valve – Controls the operation of the main valve.

·        Diaphragm/Piston Actuator – Responds to pressure changes.

·        Spring Mechanism (in pilot) – Provides set pressure control.

·        Inlet & Outlet Connections – Available in flanged or threaded types.

·        Sealing Elements – Ensure tight shut-off under normal operation.

Types of Pilot Operated Safety Valves-

1. Balanced Bellows Pilot Operated Safety Valve – Designed to withstand variable backpressure.
2. Cryogenic Pilot Operated Safety Valve – Engineered for LNG, liquid nitrogen, and low-temperature service.
3. Flanged End Pilot Operated Safety Valve – Suitable for large-scale, high-pressure pipelines.

Industries Using Pilot Operated Safety Valves -

• Oil & Gas – Offshore platforms, refineries, and gas processing plants.
• Power Generation – Boilers, turbines, and steam distribution networks.
• Petrochemicals – Pressure protection in chemical reactors and process equipment.
• Marine & Offshore – LNG carriers, ship boilers, and ballast systems.
• Water Treatment & Desalination – Pressure control in pumping stations.

SVR Global is a top pilot operated safety valve manufacturer in USA who ensures uncompromised safety and efficiency.

Description:
•Body Material – Cast Iron and Steel (A216 WCB, WCC, LCB, LCC,WC6, WC9), Ductile Iron, Stainless Steel [SS316, SS304, SS316L,SS904L, CF8, CF8M, F304, F316, F31L, F51, F3, F55, F91] , WCB, WC6,SS304, SS316, DUPLEX STEEL.
•Class 150-2500
•PN 10 – PN 450
•Size: ½ – 24”
•Ends- Butt welded, Socket welded, Flanged, Threaded

https://www.svrglobal.net/product-category/pilot-operated-safety-valve/