blog address: https://www.specialityvalve.com/product-category/safety-valve/
blog details: Specialityvalve is one of the leading and most trusted Safety Valve Manufacturer in India.
The motive for developing Safety Valves was to avoid explosion and were use on steam boilers during Industrial Revolution. Primary purpose of Safety Valve is the protection of life, property and environment. It is designed in way to release excess pressure from vessels and to prevent further release after the normal condition is achieved.
Safety valve should be installed wherever the allowable pressure exceeds the given limit. In steam systems, safety valves are used for boiler overpressure protection and other applications. Although the primary use of safety valve is to give safety, sometimes it is also used in process operation to prevent the product damage.
Safety Valve Working
Safety Valve aim is to provide safety to the system when the pressure exceeds. Here the inlet pressure exerts lifting force to the spindle. This lifting force is reacted downward by the force of the spring. If the inlet pressure increases the upward pressure of the spring, the valve opens and the flow of media happens.
In short due to the overpressure the valve opens and the media flows and when it is normal it comes to its original position.
Parts of Safety Valve
⦁ Spring adjuster
⦁ Blowdown ring
Types of Safety Valve
⦁ Pressure Safety Valve
⦁ Thermal Safety Valve
⦁ Steam Safety Valve
⦁ Bellow seal safety valve
⦁ Pilot operated safety valve
⦁ Oil, gas
⦁ Petroleum industry
⦁ Energy sector
⦁ Chemical Plants
⦁ They protect the system that leads to malfunctions, fire hazard or explosions.
⦁ They only have mechanical parts so are used when pneumatic or electronic safety devices fails.
⦁ They are fully actuated hence also working during power failure
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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