Thicknesses of thermal pipe insulation used for saving energy vary but as a general rule pipes operating at more extreme temperatures exhibit a greater heat flow and larger thicknesses are applied due to the greater potential savings.
Pipe thermal insulation thickness.
The table below indicates recommended insulation thickness.
For domestic hot water systems use 1 thick fiberglass pipe insulation on pipes up to 2 ips.
For below ambient service by contrast the new pipe insulation thicknesses are not particularly noteworthy.
Pipe insulation plays an important role in the design and construction of buildings where pipe temperatures can range from 0 f to 1000 f 18 c to 538 c in copper iron pvc cpvc and stainless steel piping.
Extra margin must be taken on insulation thickness as sometimes conducting heat transfer through insulation may become higher than convective heat transfer due to air on outside wall of insulation.
Inches recommended minimum thickness of insulation inches.
Minimum thicknesses to meet ashrae 90.
Use 1 1 2 thick wall on pipes larger than 2 ips.
Personnel protection burn protection.
Thickness 305 7 203 2 102 5 mm some margin should be taken on the insulation thickness because if the conductive heat transfer rate happens to be higher than the convective heat transfer rate outside the insulation wall the outer insulation wall temperature will shoot up to higher values than 50 0 c.
Fiberglass pipe insulation and accessories are an ideal solution to meet or even exceed commercial and industrial project requirements.
For example 1 in.
Insulation thickness 77 7 mm.
The pareto solution with thicker insulation thickness 20 cm in the south facade and 21 cm in all the other surfaces is the one presenting lower effect on the human health caused by ionizing radiation which is at the same time the worst from the carcinogenics impact and the economic cost standpoints.
In that case temperature of outer surface of insulation may increase to more than 50 c.
Is sufficient thickness for all sizes on chilled water lines with an assumed operating temperature in the 40 f to 60 f range.
This very rigid insulation offers the lowest heat flow rate of our pipe insulation and restricts absorption of water air and gas.
It is typically used in process piping and chiller plants and performs best in applications below 50 f.
