Pipes and Tubes - Recommended Insulation Thickness.pdf

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Pipes and Tubes - Recommended Insulation Thickness

Insulation thickness of heating systems - hot water - low, medium and high pressuresteam - systems

To avoid heat loss and reduced efficiency pipe work in heating systems should always be insulated. Very hotsystems, like hot water and steam systems should also be insulated to avoid potential personal injuries.

The table below indicates recommended insulation thickness.

Nominal PipeSizeNPS

(inches)

Recommended minimum Thickness of Insulation (inches)*

Temperature Range (oC)

50 - 90 90 - 120 120 - 150 150 - 230

Temperature Range (oF)

120 - 200 201 - 250 251 - 305 306 - 450

Hot WaterLow Pressure

SteamMedium

Pressure SteamHigh Pressure

Steam

< 1" 1.0 1.5 2.0 2.5

1 1/4" - 2" 1.0 1.5 2.5 2.5

2 1/2" - 4" 1.5 2.0 2.5 3.0

5" - 6" 1.5 2.0 3.0 3.5

> 8" 1.5 2.0 3.0 3.5

* based on insulation with thermal resistivity in the range 4 - 4.6 ft2 hr oF/ Btu in

Related Topics

Heat Loss and Insulation - Heat loss from pipes, tubes and tanks - with and without insulation -foam, fiberglass, rockwool and more

Insulation - Heat transfer and heat loss from buildings and technical applications - insulationmethods and coefficients to reduce energy consumption

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Pipes and Tubes - Recommended Insulation Thickness http://www.engineeringtoolbox.com/pipes-insulation-thickness-d_16.html

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Key Words

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