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7
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 necessary to fit a pressure disc between the threaded adapter and
the actuator head. This is included in the required 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 adapter
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 included) into the corresponding groove
on the adapter 6.
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8
6. Screw the flange plate on tight using screws 8 (1 – 1.5 Nm).
NOTICE
If included: Push the pressure disc 9 over the adapter 6 and
insert the O-ring 10 in the intended groove of the pressure
disc.
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10 Assembly and installation
GEMÜ 4241
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