Barlow's Formula

The Barlow's formula was given by Peter Barlow, a self-educated mathematician for determining the internal pressure a pipe can withstand. It is an mathematical equation that deals with the relationship of internal pressure to allowable stress, nominal thickness and diameter of pipe. The Barlow's formula is used in the applications of autoclaves and is commonly used in the piping industry to verify that pressure vessels used for transmission can safely withstand operation pressures.

Formula:

Pressure = (2 x S x T) / D


Where,

S = Allowable Stress
T = Wall Thickness
D = Outside Diameter

Related Calculator:

Use this Barlow's formula to calculate the ultimate burst pressure of a pipe in any mechanical applications. Also you can find allowable stress, nominal thickness and diameter of the pipe based on the other inputs. Refer the above given online calculator for ease calculations.


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