Pipe Insulation Thickness Tables

Refer to fiberglas pipe insulation sizing manual for more information.

Pipe insulation thickness tables.

In the new standard these tables are also reproduced in metric units. Ashrae 189 1 2009 and iecc 2009 featured changes to their. The minimum pipe insulation thicknesses are given in two tables 6 8 3a and 6 8 3b in the standard. For product availability please contact your local owens corning area sales manager.

With a 25 year aged thermal conductivity as low as 0 025 w m k at 10 c mean kooltherm pipe insulation is one of the most thermally efficient insulation material commonly used. Indicative thickness mm of insulation for non domestic hot water 60 c and low temperature heating service areas 75 c to control heat loss. There is usually no additional benefit of adding more than 1 2 thick fiberglass or rubber pipe insulation to cold water piping. A low thermal conductivity allows specified thermal performance standards to be achieved with thinner insulation.

These tables were generated using the naima 3e plus computer program which follows the heat transfer calculation methodology in astm c680. The following tables compare the minimum insulation thickness required to maintain the outside surface temperature at or below 140ºf. Hot water 60 c low temperature. The table below indicates recommended insulation thickness.

The values are in figures 1 and 2 complete with the footnotes. Very hot systems like hot water and steam systems should also be insulated to avoid potential personal injuries. Eca y50 enhanced table 2. Tables 6 8 2a and 6 8 2b see figure 3 can be used to determine the insulation thickness for both supply and return air ductwork.

Thickness 0 2 in 5 mm 0 4 in 10 mm material form 1 500 ft rolls. Hot cold water freeze protection. To avoid heat loss and reduced system efficiency pipe work in heating systems should always be insulated. Iron pipe double layer nesting chart iron pipe size iron pipe outside diameter insulation wall thickness 1 1 2 2 3 3 4 4 5 6 0 840.

To meet the energy code requirement a minimum pipe insulation thickness of 4 5 in. Our fiberglas pipe insulation portfolio is available in thicknesses up to 5 with inside diameters of up to 36. Based on nes y50 enhanced and enhanced capital allowance thickness tables.