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After Sales Support
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Information for the Installer (Cont.)
Tightening torque for protection caps and flange connection
Pipe Diameter
Tightening
Torque
(N x m)
Corresponding
Stress (using a
20cm wrench)
Part
Tightening
Torque
(N x m)
6mm (1/4”) 15 - 20 Wrist strength Service port nut 7 - 9
9.52mm (3/8”) 31 - 35 Arm strength Protection caps 25 - 30
12mm (1/2”) 35 - 45 Arm strength
15.88mm (5/8”) 75 - 80 Arm strength