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Pipe Insulation

Pipe Insulation

Pipe Insulation

(OP)
Does anyone know of a standard or reference that describes the maximum safe outside surface temperature of pipe insulation (for safety purposes)?

RE: Pipe Insulation

OSHA requires surface temps below 140 deg.F. for piping that can be accessed by workers.

There's a thread over on the Piping & Fluid Mechanics forum that discusses this in detail:
Surface temperature for insulation design

RE: Pipe Insulation

The formula for determining outside temps of insul piping is per the following:

To = Ti - (x/k / x/k + l/fo) (Ti-Ta)

l/fo is in a table, see below

see stamper & koral, "Handbook of Air Conditioning Heating and Ventilating", 3rd Edition, Page 8-178 "Piping"

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