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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

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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

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