ARI Armaturen ARI-PREMIO - Manual (Page 19)

0040501000 4511 Page 19
Operating and installation instructions
Thrust actuator ARI-PREMIO
5.3.2 Mounting for valve lift over 30 mm to 80 mm (column version)
Fig. 8
To mount the thrust actuator to a valve having a nominal lift of over 30mm to 50mm,
proceed as follows:
- Screw coupling (pos. 50.27) out of torsion safety feature (pos. 50.32) of thrust
actuator
(not illustrated).
- Position valve cone approximately in mid lift position.
Fig. A: - Turn flat hexagon nut if not present on valve spindle.
Fig. A-B: - Slip coupling (pos. 50.27) over valve spindle.
- Screw threaded bush (pos. 50.87) matching the valve onto the valve spindle in
accordance with setting dimension (Y) and lock with hexagon nut.
- Setting dimension (Y) for fitting-projection (X) 83mm = 102mm.
- Setting dimension (Y) for fitting-projection (X) 98mm = 116mm.
ATTENTION !
Setting dimension (Y) and fitting-projection (X) are measured with
inserted valve spindle. This means for
- 2-way valves at closed valve,
- 3-way valves with mixing plug at closed way B,
- 3-way valves with diverting plug at closed way A
After measuring put the valve plug back in the mid lift position!
Hexagon nut
Valve spindle
Hexagon nut
Valve spindle
turn