Laserfiche WebLink
Table 1:Minimum Insulation Thickness for Circulating Hot Water Pipes <br /> Insulation Thickness in Inches by Pipe Sizes <br /> Non-Circulating Runouts Circulating Mains and Runouts <br /> Heated Water Up to 1" Up to 1.25" 1.5'to 2.0" Over 2" <br /> Temperature(°F) <br /> 170-180 0.5 1.0 1.5 2.0 <br /> 140-169 0.5 0.5 1.0 1.5 <br /> 100-139 0.5 0.5 0.5 1.0 <br /> Table 2:Minimum Insulation Thickness for HVAC Pipes <br /> Fluid Temp. <br /> Insulation Thickness in Inches by Pipe Sizes <br /> Piping System Types Range(°F) 2"Runouts 1"and Less 1.25"to 2.0" 2.5"to 4" <br /> Heating Systems <br /> Low Pressure/Temperature 201-250 1.0 1.5 1.5 2.0 <br /> Low Temperature 120-200 0.5 1.0 1.0 1.5 <br /> Steam Condensate(for feed water) Any 1.0 1.0 1.5 2.0 <br /> Cooling Systems <br /> Chilled Water,Refrigerant and 40-55 0.5 0.5 0.75 1.0 <br /> Brine Below 40 1.0 1.0 1.5 1.5 <br /> NOTES TO FIELD:(Building Department Use Only) <br /> Orono-4701 WestBranch Page 4 of 4 <br />