1
2
3
4
P_DX_0021_SW
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
4 Insufficient squeezing (medium backflowing in
the cavity will destroy the hose within a short
period of time)
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.
Tab. 3: DFBa 010 / Number of spacer plates of 0.5 mm thickness (except Norprene
®
and TYGON
®
):
rpm
0-19
20-39
40-59
60-79
80-99
bar
0.5
1
1
1
1
1
2.0
1
1
1
1
1
4.0 *
2
1
1
1
1
6.0
2
2
2
8.0
3
2
* Delivery state
Tab. 4: DFBa 010 / Number of spacer plates of 0.5 mm thickness (Norprene
®
and TYGON
®
):
rpm
0-19
20-39
40-59
60-79
80-99
bar
0.5
5
5
5
5
5
2.0 *
5
5
5
5
5
* Delivery state
Transport, storage, assembly and Installation
25