Filtration - Pratissoli MF Serie Manuel D'utilisation Et D'entretien

10. Make sure the suction line is thoroughly clean inside
before connecting it to the pump.
9.7

Filtration

Two filters must be installed on the pump suction line, positioned as indicated in Fig. 7 and Fig. 7/a.
With a manually activated control valve
Inlet
Supply tank
With pneumatic control valve
Inlet
Supply tank
The filter, which is to be installed as close to the pump as
possible, must be easily inspectable and have the following
specifications:
1. Minimum flow rate at least 3 times the nominal flow rate
of the pump.
2. Inlet/outlet port diameters no smaller than the inlet port
diameter of the pump.
3. Filtration grade between 200 and 360 µm.
11. Install the pressure gauge for checking the booster
pressure near the plunger pump suction port and always
downstream from the filters.
1 Filter 1
2 Booster Pump
3 Filter 2
4 Pressure gauge
5 Pressure switch
6 Plunger pump
Bypass
1 Filter 1 5 Pressure switch
2 Booster Pump 6 Plunger pump
3 Filter 2 7 Pressure gauge
4 Pressure gauge 8 Safety valve
Bypass
30
7 Pressure gauge
8 Safety valve
9 Accumulator
10 Control valve
9 Accumulator
10 Pneumatic control
valve
For smooth pump operation, regular filter
cleaning is necessary, planned according to the
actual use of the pump in relation to the quality
of water used and actual clogging conditions.
Fig. 7
Fig. 7/a