Standard Torques For Flange Joints - Kohler KD103V20 Operation And Maintenance Manual

Appendix
Standard tightening torques

8.4.6 Standard torques for flange joints

Fig. 121: Flange joints overview
Standard torques for metric thread unions L series (up to 500 bar/
7252 Psi) for steel and iron cast part
According to ISO 9974-2/3 / ISO 6149-2/3 / DIN 3852-1/2, metric threading.
Information
Tolerances of the indicated tightening torques: 10%.
Always lubricate the thread before tightening these parts (engine oil).
Thread Y
M 10 x 1.0
M 12 x 1.5
M 14 x 1.5
M 16 x 1.5
M 18 x 1.5
M 22 x 1.5
M 26 x 1.5
M 33 x 2.0
M 42 x 2.0
M 48 x 2.0
Tab. 54: Standard torques for metric thread unions L series, for steel and iron cast part
184
Form A with Form B with
sealing edge sealing ring
9 Nm
7 ft-lb
20 Nm
15 ft-lb
35 Nm
26 ft-lb
45 Nm
33 ft-lb
55 Nm
41 ft-lb
65 Nm
48 ft-lb
90 Nm
66 ft-lb
150 Nm
111 ft-lb
240 Nm
177 ft-lb
290 Nm
214 ft-lb
© 2022 by Kohler Co. All rights reserved.
Form E with flat
sealing
18 Nm 18 Nm
13 ft-lb 13 ft-lb
30 Nm 25 Nm
22 ft-lb 18 ft-lb
45 Nm 45 Nm
33 ft-lb 33 ft-lb
65 Nm 55 Nm
48 ft-lb 41 ft-lb
80 Nm 70 Nm
59 ft-lb 52 ft-lb
140 Nm 125 Nm
103 ft-lb 92 ft-lb
190 Nm 180 Nm
140 ft-lb 133 ft-lb
340 Nm 310 Nm
251 ft-lb 229 ft-lb
500 Nm 450 Nm
369 ft-lb 332 ft-lb
630 Nm 540 Nm
465 ft-lb 398 ft-lb
Form F with O-ring
15 Nm
11 ft-lb
25 Nm
18 ft-lb
35 Nm
26 ft-lb
40 Nm
30 ft-lb
45 Nm
33 ft-lb
60 Nm
44 ft-lb
100 Nm
74 ft-lb
160 Nm
118 ft-lb
210 Nm
155 ft-lb
260 Nm
192 ft-lb
KD103V20 33521030901_2_1 EN_US
2022-09