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SITRANS F M MAGFLO
Tightening
Maximum allowable torques
Torque calculations
6
Electromagnetic flowmeter type MAG 3100 W
Nominal
size
mm
Inch
Nm
25
1"
N/A
40
1½"
N/A
50
2"
N/A
65
2½"
N/A
80
3"
N/A
100
4"
N/A
125
5"
N/A
150
6"
N/A
200
8"
50
250
10"
50
300
12"
62
350
14"
60
400
16"
88
450
18"
92
500
20"
103
600
24"
161
700
28"
200
800
32"
274
900
36"
288
1000
40"
382
1200
48"
395
All values are theoretical and are calculated making the following assumptions:
1.
All bolts are new and material selection is according to EN 1515-1 table 2
2.
Gasket material not exceeding 75 shore A durometer is used between the flowmeter and
mating flanges
3.
All bolts are galvanized and adequately lubricated
4.
The values are calculated for use with carbon steel flanges
5.
Flowmeter and mating flanges are correctly aligned
Standard bolts must be well lubricated and
tightened evenly around the gasket. Leakage/
damage to the flowmeter or piping may arise if
bolts are overtightened.
Maximum torque
PN 10
F/Lbs
Nm
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
N/A
25
N/A
25
N/A
32
N/A
50
37
52
37
88
46
117
44
120
65
170
68
170
76
230
119
350
148
304
202
386
213
408
282
546
292
731
PN 16
F/Lbs
Nm
N/A
16
N/A
34
N/A
46
18
N/A
18
N/A
18
N/A
24
N/A
37
N/A
38
N/A
65
N/A
86
N/A
89
N/A
125
N/A
125
N/A
170
N/A
258
N/A
224
N/A
285
N/A
301
N/A
403
N/A
539
N/A
PN 40
F/Lbs
12
25
34
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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