Relief Valve Sizing - Liquids
PSV Tag Number:
Service:
P&ID:
Type of PSV
ASME Code
Non Code
Certified
Set Pressure
kPa(g)
Constant back Pressure
kPa(g)
Variable back Pressure
kPa
Built-Up back Pressure
kPa
Overpressure:
%
Viscosity:
mPa.s
Relieving flow rate:
kg/hr
Fluid density:
kg/m3
Vapour Pressure
kPa.abs
Kd (disch. coeff.):
Kw Backpressure correction:
API Area
mm
2
ASME area:
mm
2
ASME uses a 10% derating factor - ASME VIII div1 UG-131
Messages: