Vacuum/Low Pressure Operation - Festo MPA-L Series Description

3. Installation
1
Adjusting screw
2
Pressure gauge
connection
Fig. 3/3: Setting the pressure regulator plate

3.3.4 Vacuum/low pressure operation

Festo P.BE−MPAL−EN en 1008NH
Proceed as follows:
Turn the adjusting screw clockwise to increase the flow.
·
Turn the adjusting screw anti−clockwise to decrease the
·
flow.
Note
The 2x2/2−way valves with Ident. code D, I and the 2x3/2−way
valves with Ident. code N, K, H are not suitable for vacuum or
low pressure operation.
For the above mentioned valves use a separate pressure
·
zone for mixed operation with other valves in vacuum oper
ation on the same valve terminal.
The operating pressure for this pressure zone must be
·
set in accordance with the diagram in Fig. A/1.
If valves are used for switching a vacuum, then filters must
be used in the suction line to avoid operative malfunctions
caused by foreign matter sucked into the line.
1
2
3−11