Pipe Thermal Insulation Thickness

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.

Pipe thermal insulation thickness. For example 1 in. Insulation thickness 77 7 mm. The location of pipework also influences the selection of insulation thickness. 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.

For below ambient service by contrast the new pipe insulation thicknesses are not particularly noteworthy. Use 1 1 2 thick wall on pipes larger than 2 ips. In that case temperature of outer surface of insulation may increase to more than 50 c. Fiberglass pipe insulation and accessories are an ideal solution to meet or even exceed commercial and industrial project requirements.

Personnel protection burn protection. The table below indicates recommended insulation thickness. Temperature range oc 50 90. 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. For domestic hot water systems use 1 thick fiberglass pipe insulation on pipes up to 2 ips. Very hot systems like hot water and steam systems should also be insulated to avoid potential personal injuries. Inches recommended minimum thickness of insulation inches.

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. Minimum thicknesses to meet ashrae 90.