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Fig. 3: Squeezing the hose
1
Normal shape of hose
2
Excessive squeezing (increased wear and tear
on the pump and hose)
3
Perfect squeezing
DFCa 030 / Number of spacer plates of 0.5 mm thickness (except Norprene
rpm
0-19
bar
0.5
2
2.0
2
4.0 *
3
6.0
3
8.0
4
* Delivery state
DFCa 040 / Number of spacer plates of 1.0 mm thickness (except Norprene
rpm
0-19
bar
0.5
4
2.0
5
4.0 *
5
* Delivery state
4
The spacer plates are factory-fitted. You can adapt the number of
spacer plates to the actual operating conditions in accordance with
the following table.
20-39
2
2
2
3
3
20-39
4
4
5
Transport, storage, assembly and Installation
1
3
4
Insufficient squeezing (medium backflowing in
the cavity will destroy the hose within a short
period of time)
®
40-59
60-79
1
1
2
2
2
2
3
2
3
-
®
40-59
60-79
4
4
4
4
5
4
2
P_DX_0021_SW
):
80-99
1
2
2
-
-
):
80-99
3
4
4
25
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