3 tightening torques, 1 tightening torques for nuts, 2 tightening torques for seatrings – ARI Armaturen STEVI 460 DN 300-500 EN User Manual
Page 13: 0 troubleshooting, Refer to item 7.3.1), Ues refer to item 7.3.2.), Refer to item 7.3.1.)
Rev. 0040304002 0410
Page 13
Operating and installation instructions
Str. thr. stop valves - STEVI
®
405 / 460 (DN300-500)
7.3 Tightening torques
7.3.1 Tightening torques for nuts
7.3.2 Tightening torques for seatrings
! Refer to operating 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 24
=
340 - 410 Nm
M 27
=
340 - 410 Nm
DN 300
=
3850 Nm
-
ATTENTION !
- It is essential that the safety regulations are observed when identifying faults.