Festo MPA-FB Series Manual page 47

1. Summary of components
Festo P.BE−MPA−EN en 0802c
Advantages compared to the pressure regulator A or B:
Faster cycle times
50 % higher exhaust flow rate, as air is not exhausted via
the pressure regulator. The load on the pressure regulator
is also reduced.
No quick exhaust valves are required. The exhaust is
ducted completely via the valve terminal.
The pressure regulator is always present at the pressure
regulator, as the pressure is regulated before the valve,
i.e. the regulator can always be adjusted. With pressure
regulator A or B the valve must be switched for this.
Disadvantages compared to the pressure regulator A or B:
Cannot be combined with 2x2/2−way valves with Ident.
code D, I and 2x3/2−way valves with Ident. code N, K, H
(non−reversible valves). These valves require operating
pressure in channel 1 for the pneumatic spring (see
switching symbol in appendix B, Tab. B/1 and Tab. B/2).
Application examples:
When two different pressures are required in ducts 2 and
4 instead of the operating pressure of the valve terminal.
When fast exhaust performance is required.
When the pressure regulator must always be adjustable.
Instructions on installing these pressure regulator plates can
be found in the assembly instructions VMPA...−B8−R...C2−C...
1−29