Standard Torques For Vsti Screw Plugs For Steel And Iron Cast Part - Kohler KD62V12A Operation And Maintenance Manual

Appendix
Standard tightening torques
Serie
10
12
16
16
20
24
28
32
Tab. 76: Standard torques for triple lock flange joints
Information
To tighten the screwed socket:
u Hold screwed socket instead.
u Unscrew union nut until noticeable resistance (without wrench extension).
u Tighten union nut according to torque above.

8.4.9 Standard torques for VSTI screw plugs for steel and iron cast part

According to DIN EN ISO 6149-2 / ISO 11926-2, metric threading.
Information
Tolerances of the indicated tightening torques: 10%.
Always lubricate the thread before tightening these parts (engine oil).
Fig. 140: VSTI screw plugs with ED seal (left), with o-ring (right)
232
Pipe diam. X
mm inch
14, 15, 16 5/8
18, 20 3/4
22 7/8
25 1
28
30, 32 1 1/4
35
38 1 1/2
42
2
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Thread Z Tightening torque
UN/UNF Steel
7/8-14 75 Nm
(55 ft-lb)
1 1/16-12 110 Nm
(81 ft-lb)
1 5/16-12 135 Nm
(100 ft-lb)
1 5/16-12 175 Nm
(129 ft-lb)
1 5/8-12 260 Nm
(192 ft-lb)
1 5/8-12 260 Nm
(192 ft-lb)
1 7/8-12 340 Nm
(251 ft-lb)
1 7/8-12 340 Nm
(251 ft-lb)
2 1/4-12 380 Nm
(280 ft-lb)
2 1/2-12 450 Nm
(332 ft-lb)
Stainless
steel
145 Nm
(107 ft-lb)
180 Nm
(133 ft-lb)
225 Nm
(166 ft-lb)
255 Nm
(188 ft-lb)
295 Nm
(218 ft-lb)
295 Nm
(218 ft-lb)
345 Nm
(254 ft-lb)
345 Nm
(254 ft-lb)
400 Nm
(295 ft-lb)
470 Nm
(347 ft-lb)
KD62V12A 33521061401_1_1 EN_US
2023-10