Pressure Test Requirement
Required test pressure per ASME B31.3, para. 345 (hydrostatic / pneumatic).
Inputs
Unit system
US Customary (psi / in / °F)
Metric (MPa / mm / °C)
Pipe material
Test type
Hydrostatic (liquid)
Pneumatic (gas)
Design pressure P
Design temperature
Test temperature
NPS size
Schedule
Pipe wall thickness
Min. yield strength σy
Calculate
Reset
Required Test Pressure
Computed values
Minimum (K × P)
–
K
Temperature-adjusted
–
St/Sd
Allowable stress S
–
design temp
Allowable stress S
–
test temp
P_t = K × P × (S_t / S_d)
Check during test
Hoop stress vs. limit
–
limit
verdict
–