HYDAC FILTER SYSTEMS GMBH
Setting up / assembly / integration of the filter unit | 6
BeWa OFU 3120755e en-us print
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6.2 Measuring or displaying the back pressure /
differential pressure
If pressure measurements are carried out in a hydraulic sys-
tem, the type of measurement such as the back pressure or
differential pressure and also the measurement point are cru-
cial, as shown below.
Fig. 10:
Measure or display dynamic pressure / differential pressure
∑p = Total of the pressures
∆p1 = Differential pressure
p1 = Back-pressure
∆p2 = Differential pressure
p2 = Back-pressure
∆p3 = Differential pressure
p3 = Back-pressure
∆p4 = Differential pressure
p4 = Back-pressure
In the example, the back pressure at the first measurement
point shows the total of the subsequent pressures in the hy-
draulic system.
1
2
3
4
5
6
7
8
9
10
