Appendix B: R22 Piping Materials/Radial Thickness - McQuay MDS080B R Installation Manual

Appendix B: R22 Piping Materials/Radial Thickness

Type
φ6.4
Size (mm)
Size （ inch ）
1/4
Minimum Thickness
0.8
(mm)
The minimum thickness of the pipe in the chart is based on the PRC Standard Specification for Drawn Tube of Copper and Copper Alloys
(GB/T1527-1997), TP2M and TP2Y
meets the local standards and the maximum operation pressure reaches 3.0MPa.
If the unit is used in the environment which is eroded seriously, it should be thickened by 0.2mm.
The table shows the minimum thickness. If the pipe is need to be bent or drawn, which causes the thickness to thin, please add the extra
thickness appropriately.
TP2M
φ9.5 φ12.7 φ15.9
3/8 1/2 5/8
0.8 0.8 1.0
are the marks of the material brand and state. Using this table as reference, choose the pipe that
2
φ19.1 φ22.2 φ25.4
3/4 7/8 1
1.0 1.0 1.0
TP2Y
2
φ28.6 φ31.8 φ34.9
1-1/8 1-1/4 1-3/8
1.0 1.1 1.3
©2005 McQuay International
30
φ38.1 φ41.3
1-1/2 1-5/8
1.4 1.5