Siemens SITRANS F Series Operating Instructions Manual page 24

Installing/Mounting
4.1 Sensor installation
Figure 4-5
Maximum allowable torques
Standard bolts must be well lubricated and tightened evenly around gasket.
Leakage/damage to water meter or piping may arise if bolts are overtightened.
Torque calculations
All values are theoretical and are calculated on the assumption that:
● All bolts are new and material selection is according to EN 1515-1 table 2.
● Gasket material not exceeding 75 shore A is used between the water meter and mating
flanges.
● All bolts are galvanized and adequately lubricated.
● Flanges are made of carbon steel.
● Water meter and mating flanges are correctly aligned.
Torques for 7ME6810 and 7ME6820
Nominal size PN 10
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
24
Pipe support variant 2
PN 16
f/lbs Nm f/lbs
N/A N/A N/A
N/A N/A N/A
N/A 25 18
N/A 25 18
N/A 25 18
N/A 25 18
PN 40 Class 150
Nm f/lbs Nm
10 7 7
16 12 9
N/A N/A 25
N/A N/A 25
N/A N/A 34
N/A N/A 26
Operating Instructions, 03/2020, A5E03071515-AH
AWWA
f/lbs Nm f/lbs
5 N/A N/A
7 N/A N/A
18 N/A N/A
18 N/A N/A
25 N/A N/A
19 N/A N/A
SITRANS FM MAG 8000