VAT 612 Series - Tightening Torque; Mounting with Centering Rings

Series 612 INSTALLATION
605262EE Edition 2018-08-20 19/
116
8. This valve may optionally be equipped with a heating device. Connect VAT heating device according
to manual of respective heating device.
9. Perform chapter «Setup procedure» to prepare valve for operation.
Without performing the setup procedure the valve will not be able to do pressure
Control.
4.3 Tightening torque
Tighten mounting screws of the flanges uniformly in crosswise order. Observe the maximum torque levels
in the following table. Higher tightening torques deforms the valve body and may lead to malfunction of
the valve.
4.3.1 Mounting with centering rings
Valve size
max. tightening
torque
(Nm)
max. tightening
torque
(lbs . ft)
mm inch ISO-F ISO-F
63 2½ 8-10 6-8
80 3 8-10 6-8
100 4 8-10 6-8
160 6 13-15 9-11
200 8 13-15 9-11
250 10 13-15 9-11
Refer to «Spare parts / Accessories» for centering rings ordering numbers.