1. Summary of components
1-27
Festo P.BE-MPA-EN en 1108e
P pressure regulator (identifier PF, PA)
Supply process: The P-pressure regulator regulates the pressure in front of
the valve in duct (1) (P). This provides the same regulated
working air pressure in channels (2) and (4).
Exhaust process: The exhaust flow in the valve is from channel (2) to
channel (3) and from channel (4) to channel (5) through the
pressure regulator plate into the valve terminal.
The advantages of this pressure regulator are:
– The pressure regulator is not affected by exhausting,
since the pressure is regulated upstream of the valve.
– The pressure regulator can always be adjusted because
the pressure from the valve terminal is always present.
Application example:
– An equal working pressure is required at working
lines (2) and (4).
– A lower air pressure (e.g. 3 bar) is required than the
operating pressure present at the valve terminal
(e.g. 8 bar).
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