Health Loss Diagrams Insulated Pipes

Heat loss (W/m) diagrams for insulated pipes – ranging 1/2 to 6 inches – insulation thickness 10 – 80 mm – temperature difference 20 – 180 deg C

The heat loss diagrams below is based on metal pipes with fiber glass insulation with thermal conductivity 0.036 W/mK, outdoor condition with moderate wind 9 m/s. 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/m)

Pipe Heat Loss – Insulation thickness 80 mm

• 1 W/m = 0.305 W/ft
• 1 oC = 1.8 oF

Pipe Heat Loss – Insulation thickness 50 mm

Pipe Heat Loss – Insulation thickness 40 mm

Pipe Heat Loss – Insulation thickness 30 mm

Pipe Heat Loss – Insulation thickness 25 mm

Pipe Heat Loss – Insulation thickness 20 mm

Pipe Heat Loss – Insulation thickness 10 mm