Appendix Operation and Maintenance Manual
Standard tightening torques
Pipe diam. X Thread Y Form A with sealing
ring
Form B with
sealing edge
Form E with flat
sealing
Nm ft/lb Nm ft/lb Nm ft/lb
10 M 14 x 1,5 30 22.13 30 22.13
12 M 16 x 1,5 40 29.5 40 29.5 40 29.5
15 M 18 x 1,5
18 M 22 x 1,5 80 59 80 59
22 M 26 x 1,5 80 59 150 110.63
28 M 33 x 2,0
35 M 42 x 2,0
42 M 48 x 2,0
Tab. 54: Standard torques for metric thread unions L series for aluminium – see figure above
8.4.10 Standard torques for cutting ring flange joints
Fig. 102: Cutting ring flange joints
Series Pipe diam. X Thread Z Nm ft/lb
LL 6 M 10 × 1 14 10.33
L 6 M 12 × 1,5 14 10.33
8 M 14 × 1,5 20 14.75
10 M 16 × 1,5 27–30 19.91 - 22.13
12 M 18 × 1,5 60 44.25
15 M 22 × 1,5 105 77.44
18 M 26 × 1,5 150 110.63
22 M 30 × 2 200 147.51
28 M 36 × 2 250 184.39
35 M 45 × 2 450 331.9
42 M 52 × 2 600 442.54
S 16 M 24 × 1,5 150 110.63
20 M 30 × 2 250 184.39
25 M 36 × 2 450 331.9
30 M 45 × 2 600 442.54
38 M 52 × 2 750 553.17
Tab. 55: Standard torques for cutting ring flange joints
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© 2018 by Kohler Co. All rights reserved.
KD83V16 33521030601_0_1 EN_US
2018-07