Stübbe MV 310 Series, Operating Manual

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Appendix
9.2 Tightening torques
9.2.1 Housing
Fitting size Tightening torque housing screw [Nm]
d [mm] DN [mm] Manual operation
EPDM diaphragm Manual operation
PTFE diaphragm Compressed air
operation EPDM
diaphragm Compressed air
operation PTFE
diaphragm
20 15 6 8 6 8
25 20 6 8 6 8
32 25 10 12 10 12
40 32 10 12 10 12
50 40 18 20 18 20
63 50 18 20 18 20
75 65 18 20 14 14
90 80 18 20 40 50
110 100 20 22 30 40
Tab. 7 Tightening torques housing
Fig. 9 Tightening torque housing screw
9.2.2 Flange connection
Fitting size
Tightening torque fl ange connection [Nm]
d [mm] DN [mm] Flat sealing ring
max. 10 bar, max. 40 °C Pro fi le seal
max. 16 bar
O-ring
max. 16 bar
16 10 5 5 5
20 15 10 10 10
25 20 12 12 12
32 25 15 12 12
40 32 20 15 15
50 40 25 15 15
63 50 30 20 20
75 65 35 20 20
90 80 35 20 20
110 100 35 20 20
Tab. 8 Tightening torque of fl ange connection
9.3 Accessories
Description
limit switch unit
Tab. 9 Accessories
16 MV 310 BA-2017.10.26 EN 300 719