81
Installation
Type 8650 REV.2
16.14
Connecting input air lines and exhaust air lines
Note the following when using one or more on/off valves:
Warning
Risk of injury due to uncontrolled movement of the actuators.
The valve block’s venting function cannot be guaranteed if the on/off valve is used improperly.
Note the following so that the valve block and the actuators connected to it are securely vented:
▶
Form pneumatic segments (option “P bulkhead”) if necessary in order to vent just a part of the work
connections (valve segments) of the valve block via on/off valve.
▶
Either supply each P connection of a pneumatic segment of the valve block with pressure via an on/off
valve or seal it with a dummy plug.
▶
Feed compressed air directly at the P connection of a connection segment if an on/off valve is being
used in the same pneumatic segment.
▶
Ensure quick and secure venting. Use all available exhaust connections of the valve block and on/off
valve and ensure that pressure cannot build up in the exhaust channels.
Exhaust air
Pre-pilot exhaust air/auxiliary pilot air
Pressure supply
Fig. 54: Connection to input and exhaust air lines
16.14.1
Connecting pressure supply
note
avoid drops in pressure.
▶
Ensure a comprehensive pressure supply (minimum hose diameter 8/6 mm), especially for base modu-
les with P shutoff.
▶
For larger AirLINE Ex systems and heavily used applications, connect the pressure supply to all P/1
connections (right, left, and if applicable middle connection segments).
→
Connect the pressure supply to the P/1 connections of the connection segments.
→
Seal unused P/1 connections with a stopper.
→
Tightening torque on the threaded connections: maximum 20 Nm
→
When using one or more on/off valves, observe the warning notice in chapter
English
