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Inside Diameter (ID) of Metal Pipe	Line Temp. +7°C (+44.6°F)	Line Temp. +2°C (+35.6°F)	Line Temp. -8°C (+17.6°F)	Line Temp. -18°C (-0.4°F)	Line Temp. -3°C (-22°F)
Inside Diameter ID 9 mm. thru 75 mm. ID over 75 mm.	Base on Mild Condition, Max Ambient Temp. 25°C (77°F), 50% RH
Inside Diameter ID 9 mm. thru 75 mm. ID over 75 mm.	6 mm. 9 mm.	9 mm. 13 mm.	13 mm. 13 mm.	19 mm. 19 mm.	25 mm. 25 mm.
Inside Diameter ID 9 mm. thru 25 mm. ID 26 mm. thru 50 mm. ID 51 mm. thru 75 mm. ID 76 mm. upward	Base on Normal Condition, Max Ambient Temp. 30°C (86°F), 70% RH
	13 mm. 13 mm. 13 mm. 13 mm.	13 mm. 19 mm. 19 mm. 19 mm.	19 mm. 19 mm. 25 mm. 25 mm.	25 mm. 25 mm. 25 mm. 32 mm.	32 mm. 32 mm. 32 mm. 38 mm.
Inside Diameter ID 9 mm. thru 25 mm. ID 26 mm. thru 50 mm. ID 51 mm. thru 75 mm. ID 76 mm. thru 100 mm. ID 101 mm. thru 250 mm. ID 251 mm. upward	Base on Severe Condition, Max Ambient Temp 33°C (91.4°F), 80% RH
	19 mm. 25 mm. 25 mm. 25 mm. 28 mm. 28 mm.	25 mm. 25 mm. 25 mm. 28 mm. 28 mm. 32 mm.	32 mm. 32 mm. 38 mm. 38 mm. 44 mm. 44 mm.	38 mm. 38 mm. 38 mm. 44 mm. 44 mm. 50 mm.	38 mm. 50 mm. 50 mm. 56 mm. 56 mm. 63 mm.
Inside Diameter ID 9 mm. thru 25 mm. ID 26 mm. thru 50 mm. ID 51 mm. thru 75 mm. ID 76 mm. thru 100 mm. ID 101 mm. thru 250 mm. ID 251 mm. upward	On Extremely Severe Condition, Max Ambient Temp 33°C (91.4°F), 85% RH
	25 mm. 28 mm. 32 mm. 32 mm. 38 mm. 38 mm.	32 mm. 32 mm. 32 mm. 38 mm. 38 mm. 38 mm.	38 mm. 44 mm. 44 mm. 50 mm. 56 mm. 56 mm.	50 mm. 50 mm. 50 mm. 59 mm. 63 mm. 63 mm.	50 mm. 56 mm. 63 mm. 69 mm. 81 mm. 88 mm.

           In areas of low relative humidity, insulation thickness 6mm. will be sufficient for            condensation control purpose. However, we would recommend a minimum
           thickness of 9mm. in order to significantly reduce the heat gain from outer
           sources.

          • For chilled water piping and refrigeration

          Thickness Recommendation for Chilled Water Piping and Refrigeration