SCF-B Self-Cleaning Filter

Working Principle:

Dirty water enters the body through the inlet, and impurities in the water settle on the stainless steel filter screen, creating a pressure difference. The pressure difference switch monitors the pressure difference between the inlet and outlet. When the pressure difference reaches the set value, the electric controller sends signals to the hydraulic control valve and the drive motor, triggering the following actions: the motor drives the brush to rotate and clean the filter element, while the control valve opens to discharge the dirt. The entire cleaning process only takes a few tens of seconds. When cleaning is finished, the control valve closes, the motor stops, and the system returns to its initial state, starting the next filtration process. After installation, the equipment is debugged by technicians to set the filtration time and cleaning conversion time. Water to be treated enters the body through the inlet, and the filter starts normal operation. When the preset cleaning time is reached, the electric controller sends signals to the hydraulic control valve and drive motor. After a few tens of seconds, when cleaning is finished, the control valve closes, the motor stops, and the system returns to its initial state, starting the next filtration process. The following actions are triggered: the motor drives the brush to rotate and clean the filter element, while the control valve opens to discharge the dirt. The entire cleaning process only takes...

Product Performance Parameter Table

Single unit water treatment capacity range: 15-2800 t/h

Minimum working pressure: 0.1 Mpa

Maximum working pressure: 1.0/1.6/2.5/4.0 Mpa

Pressure loss: ≤0.01 Mpa

Filter element precision: 100-3000 um (wedge wire) 800 um-5000 um (perforated screen)

Standard pressures: 1.0 Mpa, 1.6 Mpa, 2.5 Mpa, 4.0 Mpa, customized for special specifications

Shell material: CS, 304, 316

Filter screen material: 304, 316L, 2205

Filter element type: stainless steel wedge wire, stainless steel perforated screen

Temperature: 0-85℃ (85℃-200℃ customized according to actual site conditions)

Control box: PCB integrated circuit control, PLC control (including remote signals)

Control mode: manual, differential pressure, time

Rated operating voltage: three-phase, 220V, 380V, 50Hz

Product Selection Reference Table

Precision Conversion Table

Installation Diagram:

Selection Guide:

1. Water treatment capacity

2. System pipeline pressure

3. Actual site filtration precision requirements

4. Suspended solids content in the filtration system

5. Medium and chemical properties of the filtration system

 Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.