FAM 15/30/50/70
FAM Set-up and Connection
HYDAC Filter Systems GmbH
en
Page
32 /
68
BEWA FAM15-70Siem 3099574e en 2009-10-08.doc
2008-10-06
Checking / setting the downstream pressure
Downstream pressure is the term used for the pressure after the 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], e.g. by tapping
the water. 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 locking feature [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].
