Thermal Expansion of Steam Pipes - inches

When a steam pipes is heated from surrounding temperature to operation temperature - it expands

The table below can be used to calculate the expansion of steam pipes at different operating temperatures.

Production Temperature
(oF)
Expansion pr. 100 ft Pipe
(inch)
150 0.75
200 1.15
250 1.6
300 2.0
350 2.4
400 2.9
450 3.3
500 3.8

To avoid unacceptable stress and damage of the pipe lines - its important to handle the expansion properly.

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