Performing Maintenance
FAM 25/45/60/75/95
en(us)
Page 96/160
BEWA FAM25-95 3402054f en(us) 2013-06-13
2013-06-13
Checking / setting the downstream pressure
Downstream pressure is the term used for the pressure after the water filter
combination.
Reduce the pressure to prevent strong turbulence in the vacuum pump tank when
the operating pressure is high.
The downstream pressure at the filter combination is set ex-works to 5 bar.
To adjust the downstream pressure, proceed as follows:
1.
Close the locking feature [1].
2.
Relieve the pressure in the pipe between
the locking features [1] and [2]. For
example using water spigots.
3.
Loosen the flat-blade screw [4]. Do not
screw out completely!
4.
Depressurize the nominal value spring by
turning the adjustment grip to the left (-).
5.
Close the shut-off device [2].
6.
Slowly open the locking feature [1].
7.
Set the nominal value of 5 bar
(downstream pressure) by rotating the
adjustment grip.
Turning the the right (+) increases the
nominal value, turning to the left (-)
decreases the nominal value.
(Read the value on the manometer)
If the downstream pressure is set to a
lower value, then the output side must be
relieved of pressure in order for the
desired downstream pressure to adjust.
8.
Tighten the flat-blade screw firmly [4].
9.
Slowly open the locking feature [2].
10. Testing/Cleaning the downstream
pressure is complete.
Summary of Contents for FluidAqua Mobil FAM 25
Page 159: ......