Function And Application; Conditions Of Use - Festo DPA 40 Manuel D'utilisation

DPA
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Function and application

The type DPA pressure booster has been designed for increasing the pressure in
air supply lines. Due to its two coupled pressure chambers, the DPA functions as
a double piston compressor. No external energy other than compressed air is re
quired to operate the DPA. Once the input pressure has been applied, the DPA
starts up automatically. An integrated way valve conducts the pressure, which is
applied constantly at pneumatic connection 1, alternately into one compression
chamber then into the other. These generate an output pressure of up to double
the value of the input pressure. On pressure boosters with a controller, the pres
sure increase can be reduced by setting the rotary knob. When the set output pres
sure is reached, the DPA stops operating to save energy but restarts automatically
if the pressure drops due to application operation.
With the DPA− −A it is possible to record the individual strokes of the drive piston
using an external sensor and an adding counter.
Note
Pressure boosters are intended to occasionally relieve compressed air. Pressure
boosters are not suitable for use as compressor replacements, as wear on seals
and drive pistons increases significantly during continuous operation without
breaks.
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Conditions of use

Note
Incorrect handling can result in malfunctioning.
S Make sure that the following specifications are always observed:
Compare the maximum values specified in these operating instructions with
S
your actual application (e.g. operating media, pressures, forces, temperatures,
masses, flow rates).
Ensure that there is a supply of correctly prepared compressed air.
S
Take into consideration the ambient conditions at the location of use.
S
Please comply with national and local safety laws and regulations (e.g. Safety
S
regulations as per EN 1012, part 1).
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Festo DPA 0712d English