GEM 658, Инструкция по установке, эксплуатации и обслуживанию, Страница: 30 / 44

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Installation - Butt weld spigots:
1. Adhere to good welding practices!
2. Disassemble the actuator with the
diaphragm before welding the valve body
into the pipeline (see chapter 12.1).
3. Allow butt weld spigots to cool down.
4. Reassemble the valve body and the
actuator with diaphragm (see chapter
12.4).
Installation - Clamp connections:
G
When installing clamp connections,
insert a gasket between the body clamp
and the adjacent piping clamp and join
them using the appropriate clamp fi tting.
The gasket and the clamp for clamp
connections are not included in the scope
of delivery.
Important:
Butt weld spigots /
Clamp connections:
Angle of rotation for welding into
pipeline to enable optimised
draining see brochure "Angle of
rotation for 2/2-way valve bodies"
(on request or
www.gemu-group.com).
Installation - Threaded connections:
G
Screw the threaded connections into the
piping in accordance with valid standards.
G
Screw the diaphragm valve body into the
piping, use appropriate thread sealant.
The thread sealant is not included in the
scope of delivery.
Installation - Flanges:
1. Pay attention to clean, undamaged sealing
surfaces on the mating fl anges.
2. Align fl anges carefully before installing
them.
3. Centre the seals accurately.
4. Connect the valve fl ange and the piping
fl ange using appropriate sealing material
and matching bolting. Sealing material
and bolts are not included in the scope
of delivery.
5. Use all fl ange holes.
6. Only use connector elements made of
approved materials!
7. Tighten the bolts diagonally!
Observe appropriate regulations for
connections!
After the installation:
G
Reactivate all safety and protective
devices.
11.2 Control function
The following control function is available:
Control function 1
Normally closed ( NC ) :
Valve resting position: closed by spring
force. Activation of the valve see
chapter 9 "Functional description" and
10 "Construction".
Control
function
Connectors
V R
1 (NC) Full stroke Reduced stroke
(for connectors V / R see picture above)
Connector V
Connector R
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