Tightening torques for plug screw joints as per MTN 5183-6
Thread
screwed into
Steel/gray cast iron M
A
(Nm)
AI alloy M
A
(Nm)
M10 x 1
20
10 +2
M12 x 1.5
35
14 +2
M14 x 1.5
45
15 +3
M16 x 1.5
55
18 +3
M18 x 1.5
70
23 +3
M22 x 1.5
100
33 +4
M27 x 2
170
57 +5
M33 x 2
310
103 +10
M42 x 2
330
110 +11
M48 x 2
420
140 +14
M60 x 2
–
200 +20
M
A
= tightening torques
Assembly instructions and tightening torque for hose fittings with union nuts
These instructions do not apply to ORFS fittings. In contrast to the instructions for pipe unions, hose fittings
with sealing heads and the matching adapters must be fitted and connected as follows.
Hose fitting, metallic sealing with union nut: tighten union nut by hand then tighten a further max. 1/4 of a
turn with a wrench.
Hose fitting with O-ring and union nut: tighten union nut by hand then tighten a further max. 1/2 of a turn
with a wrench.
Hoses must be properly aligned before tightening the union nuts.
Sealing head/sealing cone with metric union nut
Metric thread
Pipe outer dia.
Torque (Nm)
M12 x 1.5
6
20
M14 x 1.5
8
38
MS15034/00E 2018-08
| General Information | 49
TIM-ID: 0000002333 - 018
Summary of Contents for 8V4000M*3 series
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