McQuay MDS080B R - Appendix A: Dimension of Indoor and Outdoor Units; Appendix B: R22 Piping Materials;Radial Thickness

©2005 McQuay International
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Appendix B: R22 Piping Materials/Radial Thickness
Type TP2M TP2Y 2
Size (mm)
φ6.4
φ9.5 φ12.7
φ15.9
φ19.1
φ22.2
φ25.4
φ28.6
φ31.8
φ34.9 φ38.1
φ41.3
Size （ inch ）
1/4 3/8 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8
Minimum Thickness
(mm)
0.8 0.8 0.8 1.0 1.0 1.0 1.0 1.0 1.1 1.3 1.4 1.5
 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 2 are the marks of the material brand and state. Using this table as reference, choose the pipe that
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.