Festo CPV -VI Series Manual page 61

3. Installation
PLEASE NOTE
If there are several systems with ducted exhaust
air, use non-return valves in the common exhaust
tubing, in order to avoid impairment of function
as a result of back pressures.
!
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#
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Fig. 3/4: Common tubing with non-return valves
PLEASE NOTE
The exhaust channels 3 and 5 are combined in the
CPV valve terminal. Separate exhaust restriction of
channels 3 and 5 is not therefore possible.
CPV... 9811d
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$
CPV valve terminal 1
Common 3/5
Central 82/84
Central 3/5
CPV valve terminal 2
Common 82/84
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$
3-9