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1
1. Pull out the
2. Align the indentation of the dis-
spindle 1.
tance piece 4 to the spring and push
it over the spindle 1 using the spring
2 and fix it in place using the operat-
ing bush 3.
3. Tighten the oper-
4. Affix the O-ring 5 and the adapter
ating bush 3 by turn-
6.
ing it
clockwise.
7
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1
4
2
3
5
6
8
5. Attach the flange
plate 7
- Push in the spindle until it pushes against the spring and
then slowly release the pressure on the spring.
▶ For some valves (e.g. GEMÜ 650 and GEMÜ 687) it is ne-
cessary to fit a pressure disc between the threaded ad-
apter and the actuator head. This is included in the re-
quired mounting kits, sometimes with an additional O-ring
(only GEMÜ 650 with normally open and double-acting
control function – code 2+3).
▶ If the pressure disc does not have a groove for a seal, this
will already be inserted in the groove provided at the ad-
apter opening of the actuator head (e.g. GEMÜ 687 with
normally open control function – code 2).
6
11
9
10
Insert the O-ring 11 (if in-
cluded) into the correspond-
ing groove on the adapter 6.
10.4 Assembling the adapter (linear actuator)
With some mounting kits it is necessary to install an adapter
as well. This adapter is enclosed with the required 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 adapter 3.
3. Screw adapter 3 into the actuator opening as far as it will
go and tighten.
11 / 18
10 Assembly and installation
6. Screw the flange plate on tight us-
ing screws 8 (1 – 1.5 Nm).
NOTICE
If included: Push the pres-
sure disc 9 over the adapter
6 and insert the O-ring 10 in
the intended groove of the
pressure disc.
1
3
2
GEMÜ 1240
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