# Steel Pipe Expansion Loops

## Thermal expansion and steel pipe expansion loops capacities

The expansion loop is a common way to absorb temperature expansion and contraction in steel pipes. Expansion loops can be fabricated from standard pipes and elbows.

Approximate Expansion Capacity (mm) | |||||
---|---|---|---|---|---|

Nominal Pipe Size (mm) | Width of Expansion Loop - w - (m) | ||||

0.5 | 1.0 | 1.5 | 2.0 | 2.5 | |

25 | 35 | 130 | |||

32 | 25 | 100 | 210 | ||

40 | 20 | 70 | 150 | ||

50 | 65 | 125 | 200 | ||

65 | 50 | 100 | 150 | 220 | |

80 | 40 | 75 | 125 | 190 | |

100 | 35 | 65 | 115 | 150 | |

### U-Bends Expansion Compensator Calculator

#### Metric Units

This calculator can be used to calculate required width and height of an U-bends expansions compensator.

*S - Length of expanding pipe (m)*

* Expansion coefficient (10 ^{-6} m/m ^{o}C) *

* Initial temperature ( ^{o}C)*

* Final temperature ( ^{o}C)*

* Outside diameter of pipe (mm)*

#### Imperial Units

*S - Length of expanding pipe (ft)*

* Expansion coefficient (10 ^{-6} in/in ^{o}F) *

* Initial temperature ( ^{o}F)*

* Final temperature ( ^{o}F)*

* Outside diameter of pipe (in)*

### Z-Bends Expansion Compensator Calculator

#### Metric Units

This calculator can be used to calculate required offset in a Z-bends expansions compensator.

*S - Length of expanding pipe (m)*

* Expansion coefficient (10 ^{-6} m/m ^{o}C) *

* Initial temperature ( ^{o}C)*

* Final temperature ( ^{o}C)*

* Outside diameter of pipe (mm)*

#### Imperial Units

*S - Length of expanding pipe (ft)*

* Expansion coefficient (10 ^{-6} in/in ^{o}F) *

* Initial temperature ( ^{o}F)*

* Final temperature ( ^{o}F)*

* Outside diameter of pipe (in)*

### L-Bends Expansion Compensator Calculator

#### Metric Units

This calculator can be used to calculate required offset in a Z-bends expansions compensator.

*S _{max} - Length of longest expanding leg (m)*

* Expansion coefficient (10 ^{-6} m/m ^{o}C) *

* Initial temperature ( ^{o}C)*

* Final temperature ( ^{o}C)*

* Outside diameter of pipe (mm)*

#### Imperial Units

This calculator can be used to calculate required offset in a Z-bends expansions compensator.

*S _{max} - Length of longest expanding leg (ft)*

* Expansion coefficient (10 ^{-6} in/in ^{o}F) *

* Initial temperature ( ^{o}F)*

* Final temperature ( ^{o}F)*

* Outside diameter of pipe (in)*

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