Piping Calculators

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Tools for pipe sizing, pressure drop, valve sizing, hydrotest pressure, pipe wall thickness, and other piping engineering calculations.

Industrial piping calculation tools such as Pipe Sizing, Pressure Drop, Valve Cv, and Hydrotest Pressure.

Minimum required thickness of a blind flange / blank for internal pressure per ASME B31.3.

blind flange
blank thickness
ASME B31.3
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Maximum allowable pipe support spacing based on bending stress and mid-span deflection.

support spacing
bending stress
deflection
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Calculate the minimum required pipe wall thickness for internal pressure per ASME B31.3.

wall thickness
ASME B31.3
pressure design
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Estimate frictional pressure loss along a pipe using the Darcy–Weisbach equation.

pressure drop
darcy
friction
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Compute the hydrostatic test pressure for a piping system based on design pressure and stress ratios.

hydrotest
test pressure
ASME B31.3
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Determine the right pipe diameter for a target flow rate and allowable velocity, for liquid and gas service.

pipe sizing
velocity
flow rate
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Find the flow coefficient (Cv) required for a valve at a given flow and pressure drop.

valve
Cv
flow coefficient
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