Appendix
All
S
P Rock Valve Model
s
Startup 250:Users:Danny:Desktop:Operation manuals:line
pumps:All SP Rock Valve models:Frame files:Appendix.fm
Operation Manual -
127
Torque
S
pecification
s
for Metric
Bolt
s
The following charts show the tightening torques
specified for the bolts used on Schwing equipment. The
charts are to be followed unless there is different torque
spec. indicated for a particular procedure.
Torque specifications are very important for proper
machine function. For further information on this
subject, see the section on bolt tightening in the
Maintenance section of this manual.
.
1. Nuts and Bolts as per DIN 912 – 931 – 933 – 934 – 6914 - 6915
Applicable to:
1. Geomet/Dacromet 500 coating.
2. Black and silver-chromated nuts and bolts fitted with mounting
paste such as Cu or MOS
2
.
Assuming a friction coefficient of µ = 0.1.
Coarse-Pitch Thread
Fine-Pitch Thread
* Fitting Tightening Torque
(Nm, ft lb)
* Fitting Tightening Torque
(Nm, ft lb)
Grade
Grade
Bolt Size
Bolt Size
8.8 10.9 12.9
8.8 10.9 12.9
T
h
read
Des
ignat
ion
N m ft
lb
N m
ft lb N m ft lb
Th
re
a
d
Des
ignat
ion
N m ft
lb N m ft lb N m ft lb
M 4 X 0.7
2.2 1.6 3.2 2.4 3.8
2.8
M 8 X 1
20 15 28 21 33 24
M 5 X 0.8
4.3 3.2 6.4 4.7 7.5
5.5
M 10 X 1
40 29 57 42 68 50
M 6 X 1
7.5 5.5 10.8 8 12.6
9.3
M 10 X 1.25
37 27 55 41 64 47
M 8 X 1.25
18 13 27 20 31
23
M 12 X 1.25
67 49 100 74 115 85
M 10 X 1.5
36 27 53 39 62
46
M 12 X 1.5
65 48 95 70 110 81
M 12 X 1.75
62 46 90 66
108
80
M 14 X 1.5
105 77 155 114 180 133
M 14 X 2
100 74 140 103 170
125
M 16 X 1.5
160 118 235 173 280 206
M 16 X 2
150 111 225 166 260
192
M 18 X 1.5
240 177 345 254 400 295
M 18 X 2.5
220 162 310 228 365
269
M 20 X 1.5
335 247 475 350 590 435
M 20 X 2.5
300 221 440 324 510
376
M 20 X 2
560 413
M 22 X 2.5
420 310 590 435 700
516
M 22 X 1.5
460 339 650 479 750 553
M 24 X 3
530 391 750 553 880
649
M 24 X 2
560 413 810 597 940 693
M 27 X 3
780 575 1120 826 1300
958
M 27 X 2
820 604 1170 862 1390 1025
M 30 X 3.5
1080 796 1530 1128 1750 1290
M 30 X 2
1170 862 1660 1224 1930 1423
M 36 X 4
- -
**2000 **1475
- -
* The fitting tightening torque corresponds to the axial force in the bolt at which the limit of
elasticty of the latter is utilised 90 % by tension and torsion.
** only Octagonal column
12_09
Home
TOC
TOC
Содержание 30100750
Страница 8: ...Table of Contents Operation Manual All SP Rock Valve models viii revDate Home TOC TOC Print Print ...
Страница 14: ...Introduction Operation Manual All SP Rock Valve Models 12 revDate NOTES Home TOC TOC Print Print ...
Страница 70: ...Overview Operation Manual All SP Rock Valve Models 68 revDate NOTES Home TOC TOC Print Print ...
Страница 100: ...Operation Operation Manual All SP Rock Valve Models 98 revDate NOTES Home TOC TOC Print Print ...
Страница 126: ...Maintenance Operation Manual All SP Rock Valve Models 124 revDate NOTES Home TOC TOC Print Print ...
Страница 159: ...Alphabetical Index Operation Manual Line pumps ALPHABETICAL INDEX swg99a001 eps Home TOC TOC Print Print ...
Страница 164: ...Alphabetical Index Operation Manual All SP Rock Valve Models 162 revDate Home TOC TOC Print Print ...