Valvesonly is a trusted Steam Safety Valve Manufacturer in USA. A steam safety valve is a critical component in steam systems designed to protect boilers, pressure vessels, and other related equipment from excessive pressure buildup. Its primary function is to release excess steam when the pressure inside a system surpasses a predetermined set point, preventing catastrophic failures and ensuring the safety of the equipment and personnel. The operation of a steam safety valve is crucial for maintaining the integrity of the system and preventing potentially dangerous situations.

The structure of a steam safety valve typically consists of a valve body, a disc or poppet, a spring, and an adjusting ring. The valve is installed on the steam system in a way that allows it to discharge excess steam to the atmosphere or a designated discharge location. The spring within the valve exerts a force on the disc, keeping it tightly sealed against the valve seat. As the steam pressure increases beyond the set point, the force exerted by the steam overcomes the spring tension, causing the valve to lift and allowing the excess steam to escape. Once the pressure decreases and returns to a safe level, the spring forces the valve to close, resealing the system.

Advantages of a Steam Safety Valve:

  • The basic function of a steam safety valve is to provide pressure relief in steam systems.
  • They play a crucial role in protecting boilers, pressure vessels, and other related equipment from overpressure.
  • By minimizing the risk of equipment failure and potential steam releases, steam safety valves protect personnel from injuries and create a more secure workplace.
  • They are often required by industry standards, codes, and regulations to ensure the safe operation of steam systems.
  • Properly functioning safety valves contribute to the overall efficiency of steam systems.
  • They are designed to be reliable and robust.
  • These valves are versatile and can be applied in various industrial settings, including power plants, refineries, chemical plants, and manufacturing facilities.
  • In the event of a sudden pressure surge or emergency, the steam safety valve can rapidly release excess steam, contributing to an effective emergency shutdown of the system.


  • Power Generation
  • Petrochemical
  • Refining
  • Chemical Manufacturing
  • Pulp and Paper
  • Textile
  • Oil and Gas
  • Manufacturing (Various processes involving steam)
  • Marine
  • Automotive
  • Aerospace


  • 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

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