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Overview
34
Festo – P.BE-MPA-EN – 1309f – English
Fig. 2.12 shows the following switching position of the B pressure regulator:
The air is passed from channel (1) through the pressure regulator plate and the valve to pressure regu-
lator B, where it is regulated and then passed to the port (2) of the sub-base. The unregulated exhaust
air is then fed via channel (4) through the pressure regulator plate to the valve and from there to chan-
nel (5) and exhausted.
1
2
3
4
1
Pressure regulator
2
Valve
3
Intermediate plate
4
Sub-base
Fig. 2.12 B-pressure regulator
Reversible A or B pressure regulator (Ident. code PN, PL, PM, PK)
Pressurizing process
The reversible pressure regulator splits up the supply air in channel (1)
and regulates the pressure in front of the valve in the corresponding
channel ((
1
in Tab. 2.15), in the other channel (
2
in Tab. 2.15)
the unregulated pressure from channel (1) is present. The regulated air
is then switched to the corresponding work channel. The valve is thus
operated in reversible mode.
Exhaust process
In the valve, the exhaust flows from the corresponding work channel
(
3
in Tab. 2.15) to channel (1) and is guided in the pressure
regulator plate to the corresponding exhaust channel of the sub-base.
Tab. 2.14 Reversible A or B pressure regulator
Содержание MPA-S
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