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Pipes - Insulated Heat Loss Diagrams

Heat loss (W/ft) diagrams for 1/2 to 6 inches insulated pipes - ranging insulation thickness 0.5 to 4 inches and temperature differences 50 to 350 degF.

The heat loss diagrams below is based on metal pipes with fiber glass insulation, thermal conductivity 0.25 Btu/h ^oF ft²/in and outdoor condition with moderate wind 20 mph. A safety factor of 10% is included.

indoor location - reduce values with 10%
mineral wool insulation - increase values with 6%
rigid cellular polyurethane - reduce values by 30%
Heat loss diagram (W/ft)

Pipe Heat Loss - Insulation thickness 4 inches

Pipe heat loss diagram - insulation thickness 4 inches

1 W/ft = 3.41 Btu/h ft = 3.28 W/m
1 ^oF = 0.555 ^oC

Pipe Heat Loss - Insulation thickness 3 inches

Pipe heat loss diagram - insulation thickness 3 inches

Pipe Heat Loss - Insulation thickness 2.5 inches

Pipe heat loss diagram - insulation thickness 2.5 inches

Pipe Heat Loss - Insulation thickness 2 inches

Pipe heat loss diagram - insulation thickness 2 inches

Pipe Heat Loss - Insulation thickness 1.5 inches

Pipe heat loss diagram - insulation thickness 1.5 inches

Pipe Heat Loss - Insulation thickness 1 inch

Pipe heat loss diagram - insulation thickness 1 inch

Pipe Heat Loss - Insulation thickness 0.5 inches

Pipe heat loss diagram - insulation thickness 0.5 inches

Related Topics

Heat Loss and Insulation
Heat loss from pipes, tubes and tanks - with and without insulation. Use of materials lke foam, fiberglass, rockwool and more.
Insulation
Calculate heat transfer and heat loss from buildings and technical applications. Heat transfer coefficients and insulation methods available for reduction of energy consumption.
Insulation and Heat Loss from Steam and Condesate Pipe Lines
Heat loss from uninsulated and insulated steam and condensate pipes and tanks. Calculate insulation thicknesses.

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