# Unrestrained Pipe Expansion Contraction Design Calculator

Fluid Mechanics Hydraulics Formulas Equations
Equations are for unrestrained change in pipe length due to change in temperature.

Solving for temperature change.
thermal expansion coefficients (α)
 ABS pipe (Acrylonitrile Butadiene Styrene) 5.5 x 10-5 Aluminum Pipe 1.3 x 10-5 Ductile Iron Pipe 5.8 x 10-6 HDPE Pipe (High density polyethylene) 1.2 x 10-4 PVC Pipe (Polyvinyl Chloride) 3.0 x 10-5 Steel Pipe 6.5 x 10-6

## Inputs:

pipe length change (ΔL)
unrestrained pipe length (LUR)
coefficient of thermal expansion (α)

## Conversions:

pipe length change (ΔL)
= 0
= 0
inch
unrestrained pipe length (LUR)
= 0
= 0
inch
coefficient of thermal expansion (α)
= 0
= 0
inch/inch/fahrenheit

## Solution:

temperature change in fahrenheit (ΔT)
= NOT CALCULATED

## Other Units:

Change Equation
Select to solve for a different unknown
pipe expansion and contraction
 Solve for pipe length change due to temperature change. Solve for unrestrained pipe length. Solve for coefficient of thermal expansion. Solve for temperature change.
temperature change stress of restrained/anchored pipe
 Solve for temperature change stress. Solve for short term modulus of elasticity. Solve for coefficient of thermal expansion. Solve for temperature change.

References - Books:
National Resources Conservation Service. National Engineering Handbook. 1995. United States Department of Agriculture.

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By Jimmy Raymond

Contact: aj@ajdesigner.com