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# Pipes - Insulated Heat Loss Diagrams

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

• 1 W/ft = 3.41 Btu/h ft = 3.28 W/m
• 1 oF = 0.555 oC
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## 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.

## Related Documents

### Calcium Silicate Insulation

Thermal conductivity of calcium silicate insulation - temperature and k-values.

### Copper Tubes - Heat Losses

Heat loss from uninsulated copper tubes vs. temperature differences between tube and air.

### Copper Tubes - Uninsulated Heat Losses

Heat loss from uninsulated copper pipes - dimensions ranging 1/2 - 4 inches.

### Heat Loss from Oil Filled Tanks and Pipe Lines

Heat loss from insulated and non insulated sheltered and exposed oil tanks and pipes.

### Heat Traced Pipes - Wrapping Factor

Wrapping factor when the heat loss from a pipe or tube is higher than the capacity of the heat trace cable.

### Insulated Copper Tubes - Heat Loss

Heat loss to surrounding air from insulated copper tubes.

### Mineral Wool Insulation

Thermal conductivity - k-values - vs. temperature.

### Oil Filled Tanks - Heat Loss

Heat loss from insulated and uninsulated, sheltered and exposed heated oil tanks.

### Pipes - Insulated Heat Loss Diagrams

Heat loss (W/m) from 1/2 to 6 inches insulated pipes - ranging insulation thickness 10 to 80 mm and temperature differences 20 to 180 degC.

### Pipes and Cylinders - Conductive Heat Losses

Conductive heat losses through cylinder or pipe walls.

### Polyurethane Insulation

Thermal conductivity - k-values - vs. temperature.

### Steam Pipes - Heat Losses

The amount of condensate generated in a steam pipe depends on the heat loss from the pipe to the surroundings.

### Steam Pipes - Heat Losses (W/m)

Heat losses from un-insulated steam pipes.

### Steam Tracing Pipe Lines

Steam tracing of pipe lines can be done to maintain appropriate product temperatures.

### Steel Pipes - Heat Loss Diagram

Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches.

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