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10 Assembly and installation
6
11
9
10
Insert the O-ring 11 (if in-
cluded) into the corresponding
groove on the adapter 6.
10.4 Threaded adapter assembly (linear actuator)
With some mounting kits, it is necessary to install a threaded
adapter as well. This threaded adapter is enclosed with the re-
quired mounting kits. Valves with a normally open and double
acting control function (code 2+3) also include additional O-
rings (1+2).
1. Move the actuator to the closed position.
2. Place O-rings 1 and 2 into threaded adapter 3.
3. Screw threaded adapter 3 into the actuator opening as far
as it will go and tighten.
GEMÜ 4241
If included: Push the pressure
disc 9 over the adapter 6 and
insert the O-ring 10 in the in-
tended groove of the pressure
disc.
1
3
2
10.5 Assembling the stroke limiter (linear actuator)
7.1
1
2
3
4
7.2
5
Option1
9
8
6
1
Stroke limiter
2
Nut
3
1)
Seal
4
1)
Washer
5
2)
Distance piece
6
Actuator spindle
1) Only available for valves with the NO and DA control functions.
2) Only included in required mounting kits. The design depends on
the valve.
14 / 22
1. Screw distance piece 5 onto/
into actuator spindle 6.
2. Move the actuator to the
closed position.
3. Insert the O-ring 7.1 in the
5
stroke limiter 1.
Option2
4. Insert the O-ring 7.2 in the
washer 4.
5. Screw stroke limiter 1 with
nut 2, seal 3 and washer 4
into the actuator opening.
6. Set stroke limiter 1 to the re-
quired stroke.
7. Make sure that the minimum
stroke is reached.
8. Secure stroke limiter 1 with
nut 2.
Key
7.1
O-ring
1)
7.2
1)
8
Protective cap
9
Position indicator
10
Operating bush
11
Spindle
12
Travel sensor
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