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Steel Pipe Expansion Loops

Thermal expansion and steel pipe expansion loops capacities

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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.

Steel pipe temperature U-bends expansion loops

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

Steel pipes - temperature expansion loops diagram

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 ^oC)

Initial temperature (^oC)

Final temperature (^oC)

Outside diameter of pipe (mm)

Imperial Units

S - Length of expanding pipe (ft)

Expansion coefficient (10^-6 in/in ^oF)

Initial temperature (^oF)

Final temperature (^oF)

Outside diameter of pipe (in)

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Z-Bends Expansion Compensator Calculator

z-bends expansion pipe line compensator

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 ^oC)

Initial temperature (^oC)

Final temperature (^oC)

Outside diameter of pipe (mm)

Imperial Units

S - Length of expanding pipe (ft)

Expansion coefficient (10^-6 in/in ^oF)

Initial temperature (^oF)

Final temperature (^oF)

Outside diameter of pipe (in)

L-Bends Expansion Compensator Calculator

l-bends expansion pipe line compensator

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 ^oC)

Initial temperature (^oC)

Final temperature (^oC)

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 ^oF)

Initial temperature (^oF)

Final temperature (^oF)

Outside diameter of pipe (in)

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Related Topics

Temperature Expansion - Thermal expansion of pipes and tubes - stainless steel, carbon steel, copper, plastics and more
Pipe Sizing - Sizing steam and condensate pipes - pressure loss, recommended velocity, capacity and more

Related Documents

ASTM A270 Sanitary Stainless Steel Tubing - Dimensions - Dimensions of ASTM A270 sanitary steel tubes
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Thermal Expansion of Steam Pipes - inches - Steam pipes heated from room temperature to operation temperatures - expands

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