Pneumatic Connections; Use Of Pilot Valves In Gas Applications - GEM 550 Operating Instructions Manual

11 Pneumatic connections

11 Pneumatic connections
The product has 2 control medium connectors.
Control function Control medium
connector 2 (open)
1 (NC)
2 (NO)
3 (DA)
+ = available
– = not available
Control medium connector 2
Fig. 9: GEMÜ 550, control function 1
GEMÜ 550
Control medium
connector 4 (close)
+ -
– +
+ +
Control medium connector 4
Control medium connector 2
Fig. 10: GEMÜ 550, control function 2 and 3
1. Use suitable connectors.
2. Connect the control medium lines tension-free and
without any bends or knots.
3. The actuator can be rotated 360°. The control medium
connectors can be in any position.
Actuator size
0
1, 2
3, 4, 5

11.1 Use of pilot valves in gas applications

When using the valve in gas applications (order code Special
function G), the closing time must be less than 1 s.
GEMÜ recommends the GEMÜ 8500 pilot valve.
38 / 46
Thread size of the control
medium connectors
M5
G 1/8
G 1/4
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