Pressure Safety Valve 

Valesonly is a trusted Pressure Safety Valve Manufacturer in USA . A Pressure Safety Valve (PSV), also known as a Pressure Relief Valve (PRV) or Safety Valve, is a crucial component in various industrial systems and processes designed to protect equipment and personnel from overpressure conditions. The primary function of a Pressure Safety Valve is to automatically release excess pressure within a system, preventing potential damage to equipment, pipes, vessels, and other components that may result from pressure buildup beyond safe operating limits.

The operation of a Pressure Safety Valve is based on the principle of relieving excess pressure by allowing a controlled release of fluid (usually gas or liquid) from the system to the atmosphere or to a designated disposal area. This action helps to maintain the pressure within safe levels and prevents catastrophic failures that could lead to explosions or other hazardous situations.


  • Spring-loaded pressure safety valves
  • Full lift pressure safety valve
  • Pilot-operated pressure safety valves
  • Low lift pressure safety valve


  • The primary function of a Pressure Safety Valve is to protect equipment, pipes, and vessels from overpressure conditions. By releasing excess pressure, PSVs prevent potential damage and catastrophic failures, enhancing overall system safety.
  • PSVs play a crucial role in safeguarding personnel by preventing the release of hazardous substances or the occurrence of explosions resulting from overpressure events. This helps maintain a safe working environment.
  • They protect expensive and critical equipment from damage caused by excessive pressure. This extends the lifespan of machinery and reduces the need for frequent repairs or replacements.
  • Many industries are subject to regulations that mandate the use of safety valves to ensure the protection of both people and the environment. The installation and proper functioning of PSVs help industries comply with safety standards and legal requirements.
  • By preventing pressure buildup beyond acceptable limits, PSVs contribute to the stability of industrial processes. This ensures consistent and reliable operation, minimizing disruptions and downtime.
  • PSVs operate automatically without the need for manual intervention. They respond to pressure changes in real-time, providing a quick and efficient means of relieving excess pressure during abnormal conditions.
  • Pressure Safety Valves are versatile and can be used in various applications across different industries, including oil and gas, chemical processing, power generation, and manufacturing.
  • Properly functioning PSVs can lead to cost savings by preventing unplanned shutdowns, equipment damage, and the associated repair or replacement expenses. They contribute to overall operational efficiency and reliability.
  • Pressure Safety Valves are designed to be reliable and are often installed in redundant configurations to ensure continuous protection even if one valve malfunctions. This redundancy adds an extra layer of safety to critical processes.
  • Regular maintenance and testing of PSVs are relatively straightforward, ensuring that they remain in optimal condition. This proactive approach contributes to the longevity and effectiveness of the valves.


  • Oil and Gas
  • Chemical Processing
  • Power Generation
  • Petrochemical
  • Refining
  • Pulp and Paper
  • Water Treatment
  • Aerospace
  • Manufacturing
  • Mining
  • Marine
  • Nuclear Power
  • Utilities (Water, Gas, Electric)
  • Automotive
  • Semiconductor
  • Textile
  • Steel and Metal Production


  • Materials: Cast iron, Ductile Iron, WCB, SS304, SS316, CF8, CF8M, WC6, WCC, LCB, LCC.
  • Class: 150 to 2500.
  • Nominal Pressure: PN10 to PN450.
  • Ends- Butt weld, socket weld, Flanged, Threaded
  • Size: ½” to 60”.


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  • Sale!

    Full Lift Pressure Safety Valve

    Full Lift Pressure Safety Valve Body: Cast Iron, WCB, SS304, SS316, Ductile Iron Nozzle: SS304, SS316 Adjusting Ring: SS304, SS316 Disc: SS304, SS316 Guide Sleeve: SS304, SS316 Bonnet: Carbon Steel Spring: Steel Stem: SS304, SS316 Adjusting Bolt: Stainless Steel Cap: Carbon Steel Working Pressure: PN1.6, PN2.5, PN4.0, Class 150 to Class 300 End Connection: NPT, […]

  • Sale!

    Low Lift Pressure Safety Valve

    Low Lift Pressure Safety Valve Body: Cast Iron, WCB, SS304, SS316, Ductile Iron Nozzle: 2Cr13, SS304, SS316 Adjusting Ring: 2Cr13, SS304, SS316 Disc: 2Cr13, SS304, SS316 Guide Sleeve: 2Cr13, SS304, SS316 Bonnet: Carbon Steel Spring: Steel Stem: 2Cr13, SS304, SS316 Adjusting Bolt: 2Cr13 Cap: Carbon Steel Working Pressure: PN1.6, PN2.5, PN4.0, Class 150 to Class […]