
They are driven by the pressure of the system itself, exerted on the diaphragm, enabling efficient backwash operation.
They are driven by pressure on the diaphragm, enabling efficient backwash operation.
The automated backwash process is carried out by a control unit which sends a signal to the solenoids at a predetermined time or due to a preset head loss. These solenoids send a hydraulic signal that opens the backwash valves, reversing the flow and removing contaminants deposited on the sand.
For manual backwash, simply activate the 3-way valve on the backwash valve lid.
Model | Input and Output | Drain Backwash | Body | Lid | Diaphragm | Shaft and bolts | Maximum Flow (m³/h) | Maximum Pressure (mca) | Pressure minimum (mca) |
P32 | H9 - 2" | H9 - 2" ou 1.1/2" BSPF | Aluminum | Aluminum | Buna N | Stainless steel ANSI - 304 | 20 | 150 (14.7 bar) | 20 (2 bar) |
P33 | H9 - 3" | H9 - 3" ou 2"BSPF | Aluminum | Aluminum | Buna N | Stainless steel ANSI - 304 | 35 | 150 (14.7 bar) | 20 (2 bar) |
P34 | H9 - 4" | H9 - 4" ou 3"BSPF | Aluminum | Aluminum | Buna N | Stainless steel ANSI - 304 | 65 | 150 (14.7 bar) | 20 (2 bar) |
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