After The Installation; Pneumatic Connections; Control Function 1 - GEM 650 Special function J Operating Instructions Manual

15 Pneumatic connections

NOTICE
Sealing material
▶ The sealing material is not included in the scope of deliv-
ery.
Only use appropriate sealing material.
●
NOTICE
Connector elements
▶ The connector elements are not included in the scope of
delivery.
Only use connector elements made of approved materi-
●
als.
Observe permissible tightening torque of the bolts.
●
1. Keep sealing material ready.
2. Carry out preparations for installation (see chapter "Pre-
paring for installation").
3. Ensure clean, undamaged sealing surfaces on the connec-
tion flanges.
4. Align flanges carefully before installing them.
5. Clamp the product centrally between the piping with
flanges.
6. Centre the gaskets.
7. Connect the valve flange and the piping flange using ap-
propriate sealing materials and matching bolting.
8. Use all flange holes.
9. Re-attach or reactivate all safety and protective devices.
10. Tighten the bolts diagonally.

14.7 After the installation

● Re-attach or reactivate all safety and protective devices.
GEMÜ 650 / 687 Special function
J
15 Pneumatic connections
15.1 Control function
The following control function is available:

Control function 1

Normally closed (NC):
Valve resting position: Closed by spring force. Activation of
the actuator (connector 2) opens the valve. When the actuator
is vented, the valve is closed by spring force.
Control function 1
Connector 2
Control function 1
Connector 2
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