ARI Armaturen ARI-PREMIO - Manual (Page 17)

0040501000 4511 Page 17
Operating and installation instructions
Thrust actuator ARI-PREMIO
5.3 Installation instructions for mounting to valves
5.3.1 Mounting for valve-lift up to 30 mm (yoke version)
Fig. 7
To mount the thrust actuator to a valve having a nominal lift of up to 30mm, 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) 60 and 83mm = 102mm.
Fig. C: - Place thrust actuator (pos. 50) on valve.
- Mount thrust actuator (pos. 50) on fitting with two T-head bolts (pos. 50.19), two
washers (pos. 50.20), two spring washers (pos. 50.21), two hexagon nuts
(pos. 50.22).
Fig. D/E: - Swing out handwheel lever (pos. 50.12.1) and use it to move out the thrust
actuator until the driving spindle (pos. 50.30) comes to rest on the threaded
bush (pos. 50.87).
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