PSV relieving temperature
PSV relieving temperature
(OP)
PSV relieving temperature is sometimes above the design temperature of the equipment being protected.
I need you guys `s advice whether to change design temperature of the equipment, pipe line connected to PSV, gasket inside pipe to the relieving temperature or to keep the design temperature as it is. Thank you in advance.
I need you guys `s advice whether to change design temperature of the equipment, pipe line connected to PSV, gasket inside pipe to the relieving temperature or to keep the design temperature as it is. Thank you in advance.





RE: PSV relieving temperature
RE: PSV relieving temperature
Please tell me !!!
RE: PSV relieving temperature
Fire case issues exist regarding flange ratings. If you select the PSV based upon the fire contengency case and include the pressure and temperature of the fire case then the flange must be rated for the higher class if applicable. The PSV vendors will not sell you a valve with a flange rated lower than required for the pressure and temperature.
I know of no requirement that the protected equipment must comply with the fire case temperature. API 521 addresses vessel ptotection from heat input.