MLCAC-UTSM-2010-10
Insulation Work
Installation
123
5. Insulation Work
5.1 Insulation material and thickness
1). Insulation material
Insulation material should adopt the material which is able to endure the pipe’s temperature: no less than 70 in the high
℃
-pressure side, no
less than 120 in the low
℃
-pressure side(For the cooling type machine, no requirements at the low-pressure side.)
Example: Heat pump type----Heat-resistant Polyethylene foam (withstand above 120 )
℃
Cooling only type---- Polyethylene foam (withstand above 100 )
℃
2). Thickness choice for insulation material
Insulation material thickness is as follows:
Pipe diameter (mm)
Adiabatic material thickness
Refrigerant pipe
Φ
6.4—
Φ
25.4 10mm
Φ
28.6—
Φ
38.1 15mm
Drainage pipe
Inner diameter
Φ
20—
Φ
32 6mm
5.2 Refrigerant pipe insulation
1). Work Procedure
Before laying the pipes, the non
①
-jointing parts and non-connection parts should be heat insulated.
When the gas proof test is eligible, the jointing area, expanding area and the flange area should be heat insulated
②
2). Insulation for non-jointing parts and non-connection parts
wrong right
Gas pipe and liquid pipe should
not be put together to insulate
Insulate the gas pipe
(cooling only)
Insulate the gas pipe and
liquid pipe
Содержание MOU-12HDN1
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