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Examples of Correct Insulation
[Insulating both a gas pipe [Insulating supported
and a liquid pipe] sections]
Examples of Incorrect Insulation
• Gas pipes and liquid pipes [Insulating just a gas pipe]
cannot be insulated
simultaneously.
• Insulate all joints
adequately.
5-17. Insulation Work
Work procedure
Material
Use material withstanding sufficiently to temperature of pipe for the heat insulator.
Example : Heat insulating polyethylene foam (Heat insulating 120°C or more)
Insulation guidelines
All insulation work for brazed joints, flared joints, etc., should be performed only after successfully passing the
leak test. Gas pipes and liquid pipes must be insulated separately in Super MMS air conditioning system.
Liquid
pipe
Liquid
pipe
Liquid
pipe
Gas pipe
Gas pipe
Gas
pipe
Control
wires
Control
wires
Control wires
Finishing
tape
Finishing
tape
Finishing
tape
Insulation
Insulation
Insulation Insulation
Insulation
This portion is
not insulated.
Support
bracket
Copper pipe
Refrigerant
piping work
Heat insulating work
(Except connecting section)
Airtight test
Heat insulating work
(Connecting section)
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