ANSI Safety Valve

1)Size:DN10mm-600mm(NPS1/2"-25") 2)Pressure:0.06Mpa~42.0Mpa(150lb~2500lb) 3)Temperature:-196~580 4)body:WCB,WC6,WC9,CF8,CF8M

Safety valves were first used on steam boilers during the industrial revolution. Early boilers without them were prone to accidental Explosion.Safety valves also evolved to protect equipment such as pressure vessel (fired or not) and heat exchangers. Safety valve term should be limited to compressible fluid application (gas, vapor, steam).

The two general types of protection encountered in industry are thermal protection and flow protection.

  

For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the safety valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure.

Flow protection is characterized by safety valves that are considerably larger than those mounted in thermal protection. They are generally sized for use in situations where significant quantities of gas or high volumes of liquid must be quickly discharged in order to protect the integrity of the vessel or pipeline. This protection can alternatively be achieved by installing a High Integrity Pressure Protection System (HIPPS).

Safety Valve/Relief Valve/Pressure Safety Valve Specification:

1)      Size:DN10mm-600mm(NPS1/2”-25”)

2)      Pressure:0.06Mpa~42.0Mpa(150lb~2500lb)

3)      Temperature:-196~580

4)      Material of body:WCB,WC6,WC1,WC9,ZGCr5Mo,ZG15Cr1Mo1V,CF8,CF3,CF3M

Design standard:ISO4146,API 520,JIS 82190,DIN 3320

Face to face:API 526,JIS B2001,DIN3202

ANSI Safety Valve