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[guoyinyanliner]

When sizing and selecting a safety valve for fire contingency, the operating pressure and temperature are 7 MPa and 80°C respectively, but the relieving temperature reaches 425°C under fire conditions. How should the material selection for the safety valve be considered—should it be based on the operating temperature or the fire condition temperature

[breizh]

Hi,

Safety Valve Material Selection Guide | Body, Trim, Spring & Seat

 

Consider this link to support your work. You don't specify the material based on fire case .

Breizh