Appendix
Service and Repair Manual
Standard tightening torques
Thread Y Form A with sealing edge Form B with sealing ring Form E with flat sealing
G 3/4A
72 Nm
53 ft-lb
216 Nm
159 ft-lb
144 Nm
106 ft-lb
G 1A
120 Nm
89 ft-lb
272 Nm
201 ft-lb
248 Nm
183 ft-lb
G 1 1/4
A
192 Nm
142 ft-lb
432 Nm
319 ft-lb
360 Nm
266 ft-lb
G 1 1/2A
232 Nm
171 ft-lb
560 Nm
413 ft-lb
432 Nm
319 ft-lb
Tab. 73: Standard torques for imperial thread union S series, for aluminium – see figure above
5.3.7 Assembling pipes with cutting rings
Fig. 347: Cutting ring lubrication
Information
Tolerances of the indicated tightening torques: 10 %.
Always lubricate the thread before tightening these parts (engine oil).
Fig. 348: Cutting ring tightening
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KD83V16 33525088901_2_1 EN_US
2021-07