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Pipe Working Pressure Calculation

Equation: P = (2*S*T)/((O.D.-2*T)*SF)
Where: P = Fluid Pressure (psi)


T = Pipe Wall Thickness (in)
O.D. = Pipe Outside Diameter (in)
SF = Safety factor (General Calculations 1.5 – 10, Use 1 For Bursting Pressure)
S =  Material Strength (psi)
Ultimate Tensile strength or Yield strength can be used.
Ultimate should be used to determine the bursting pressure.
Yield can be used for estimating pressures at which permanent deformation begins.

According to ASTM A1016,
Hydrostatic test pressure determined by the following equation:
Inch-Pound Units: P=32000t/D
SI Units: P=220.6t/D
P = hydrostatic test pressure, psi or MPa,
t = specified wall thickness, in. or mm, and
D = specified outside diameter, in. or mm.

Pipe Working Pressure Calculations-Caculator
OD (in) (in)
Wall (in) (in)
Material Strength  (psi) 1Mpa=144.55psi
Safety Factor (working)  See Above
Calculated Working Pressure (psi) 1Mpa=144.55psi
Calculated Bursting/Yield Pressure (psi) 1Mpa=144.55psi
Tensile Strenth value or Yield Strength value? View here: Tensile strength Yield Strength


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