ABB GWT C9, Product Manual

Page: 119 / 128

7.4.2 Standard tightening torques
Screws
M12 M10 M8 M6 M5 Screw thread size
79 Nm 46 Nm 23 Nm 9.5 Nm 5.5 Nm Tightening torque
CLASS 8.8
116 Nm 67 Nm 34 Nm 14 Nm 8.1 Nm Tightening torque
CLASS 10.9
136 Nm 79 Nm 40 Nm 16.4 Nm 9.5 Nm Tightening torque
CLASS 12.9
Water couplings/fittings
QS fittings
Tightening torque [Nm] - Nominal G-thread dimension
7 Nm G1/8
9 Nm G1/4
15.5 Nm G3/8
26 Nm G1/2
R-thread
All R-threads are coated with a sealing material. This coating replaces the conventional
sealing ring. Simply screw in the R-thread by hand and tighten it with 1 or 2 turns with a
spanner.
NPQH fittings
Tightening torque [Nm] - Nominal G-thread dimension
6 Nm G1/8
7.5 Nm G1/4
9 Nm G3/8
9 Nm G1/2
Product manual - GWT C9 119
3HAA010198-001 Revision: A
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7 Reference information
7.4.2 Standard tightening torques