GEM 693 Manual page 43

disassembly (removing actuator from
body)").
3. Allow butt weld spigots to cool down.
4. Reassemble the valve body and the
actuator with diaphragm (see chapter
13.4 "Actuator mounting on the valve
body").
GEMÜ 693 and GEMÜ 698:
Installation - Flanges:
1. Pay attention to clean, undamaged
sealing surfaces on the mating flanges.
2. Align flanges carefully before installing
them.
3. Centre the seals accurately.
4. Connect the valve flange and the piping
flange using appropriate sealing material
and matching bolting. Sealing material
and bolts are not included in the scope
of delivery.
5. Use all flange holes.
6. Only use connector elements made of
approved materials!
7. Tighten the bolts diagonally!
GEMÜ 693:
Installation - Solvent cement spigots:
CAUTION
Damage to the valve body!
Only use solvent cement suitable for
®
the valve body.
The solvent cement is not included
in the scope of delivery!
2 1
1. Apply solvent cement on the outside
of the valve body spigots 1 and on
the inside of the piping connector 2
as specified by the solvent cement
manufacturer.
2. Connect the valve body to the piping.
GEMÜ 693:
Installation - Union ends with insert:
1. Screw the threaded connections into
2. Unscrew union nut 1 from valve body 2.
3. Reinsert O-ring 3 if necessary.
4. Push the union nut 1 over the piping 4.
1 2
5. Screw the union nut 1 to the valve body 2
6. Connect the other side of the valve
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CAUTION
Damage to the valve actuator or valve
body!
Adhere to good welding practices!
®
CAUTION
Damage to the valve body!
Only use solvent cement suitable for
®
the valve body.
The solvent cement is not included
in the scope of delivery!
the piping in accordance with valid
standards.
2
2
Connect the insert 5 with the piping 4 by
cementing / welding.
again.
body 2 to the piping 4, too.
1
3
3
5 1 4
693, 698