3 tightening torques, 1 tightening torques for hexagon nuts, 2 tightening torques for seat rings – ARI Armaturen STEVI 463 EN User Manual
Page 13: 0 troubleshooting, Refer to point 7.3.1), Torques refer to item 7.3.2.), Refer to item 7.3.1.)
Rev. 0040318000 0410
Page 13
Operating and installation instructions
3-way control valves - STEVI
®
423 / 463
7.3 Tightening torques
7.3.1 Tightening torques for hexagon nuts
7.3.2 Tightening torques for seat rings
Refer to operating and installation instructions for actuator
concerned for installing actuators!
8.0 Troubleshooting
In the event of malfunction or faulty operating performance check that the installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
If malfunctions cannot be eliminate with the help of the following table
“9.0 Troubleshooting table”, the supplier or manufacturer should be consulted.
M 12
=
35 - 50 Nm
M 16
=
80 - 120 Nm
M 20
=
150 - 200 Nm
M 24
=
340 - 410 Nm
DN 200
=
3300 Nm
DN 250
=
3850 Nm
-
ATTENTION !
- It is essential that the safety regulations are observed when identifying faults.