ProMinent DULCOflex DFBa Series Operating Instructions Manual page 25

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)
Tab. 3: DFBa 010 / Number of spacer plates of 0.5 mm thickness (except Norprene
rpm 0-19
bar
0.5 1
2.0 1
4.0 * 2
6.0 2
8.0 3
* Delivery state
Tab. 4: DFBa 010 / Number of spacer plates of 0.5 mm thickness (Norprene
rpm 0-19
bar
0.5 5
2.0 * 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
1
1
1
2
2
20-39
5
5
Transport, storage, assembly and Installation
1
3
40-59 60-79
1 1
1 1
1 1
2
®
40-59 60-79
5 5
5 5
2
P_DX_0021_SW
® and TYGON ® ):
80-99
1
1
1
and TYGON ):
®
80-99
5
5
25