Burst Pressure of Pipe or Tubing Equation
The following equation is Barlow's formula and can be used to estimate burst pressure of pipes.
P = (2t x S) / D
P = is burst pressure in PSI
t = is wall thickness, in inches
S = is allowable or tensile strength of material in PSI
D = is outside diameter, inches
It is recommended that the estimated bursting pressure be smaller by some factor of safety.
The design of a complex pressure containment system involves much more than the application of Barlow's formula. For almost all pressure vessels , the ASME code stipulates the requirements for design and testing.