Piping and coupling with connection in split air conditioner

 1. Align the center of the flanged tube with the service valve.

2. After coupling the center of the flanged surface and tightening the nut firmly by hand, tighten the nut to the specified torque using a torque wrench.


Tightening torque table diameter nut tightening torque N.m

Tightening                        N.m

6mm - ¼ ”                     15 - 20

9.5 mm - 3/8 ”               31 - 35

12mm - ½                     50 - 55

16 mm - 5/8 ”               60 - 65