1 conversion of valve with flanges, 3 conversion of 3-way in straight through control, Valve -9 – ARI Armaturen STEVI H 488 EN User Manual
Page 9: 1 conversion of valve with flanges -9

Rev. 0040308000 0410
Page 2-9
Operating and installation instructions
3-way/str.thr. control valves - STEVI
®
H 485-488
7.3 Conversion of 3-way in straight through control valve
7.3.1 Conversion of valve with flanges
Note:
Series 485 differs from Series 486 only in the dummy flange fitted for path B.
- Attach flange (pos. 9) and gasket (pos. 10) to
flange B using hexagon screws (pos. 11) and
nuts (pos. 12).
- Tighten evenly, crosswise.
Tightning torques for hexagonal nuts:
Refer to operating instructions for actuator concerned for installing
actuators !
ATTENTION !
Refer to item 10.0 and 11.0 before dismantling the valve.
Bolts
Torque
M 10
20 Nm
M 12
35 Nm
M 16
80 Nm
M 20
150 Nm
Fig. 11: Series
486
This manual is related to the following products: