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Help CenterDawning Hydraulic Screen Self Cleaning Irrigation Filter
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Product structure
Principle descriptions
The water flows through the screen and the particles are retained on the inside of the screen of the filter element. The filtered water then flows out through the outlet.
When the pressure differential increases to the pre-determined level, the flushing cycle starts. A automatic valve is opened on the drainage outlet then hydraulic piston release pressure.
Hydraulic motor activate suck scanner system which generates an helical movement along the screen to vacuum up the captures particles from the screen. The captured solids are expelled through the drain valve.
Filters continue to supply filtered water even during the flushing cycle.The whole working system is controlled by a smart box which has several control modes: pressure differential, time, manual or PLC.
Technical parameters
| Single filter flow(max) | 200m3/h |
| Filtration range | 25-400 micron(130 micron for irrigation) |
| Working pressure(Min) | 0.2Mpa |
| Working pressure(Max) |
1.6Mpa(customized is available) |
| Adjustable flushing time | 10-200 seconds |
| Power supply | 220 v / 50 Hz ,DC12V |
| Control modes | Pressure difference/time/manual/PLC(optional) |
| Shell material | Carbon steel/304 stainless steel/316L(optional) |
| Screen material | PVC+SS316L |
Product selecting
When you are choosing automatic screen filters, please consider the following parameters:
1. Flow capacity( Pipe diameter)
2. Filtration range
3. Shell materai
4. Pipeline pressure
5. Chemical properties of the filter medium
6. Suspended solids(SS) concentration of filter medium
Filtration range table
Micron(μm) |
10 |
25 |
30 |
40 |
50 |
80 |
100 |
120 |
150 |
200 |
400 |
800 |
1500 |
3000 |
mesh |
1500 |
650 |
550 |
400 |
300 |
200 |
150 |
120 |
100 |
80 |
40 |
20 |
10 |
5 |
The dimension figure
| Models | Inlet/outlet D(inch) | D(mm) | Screen areas(cm2) | Flow rate(m3/h) | Backwash(m3/h) | D1(inch) | X(mm) | Y(mm) | H(mm) | Weight(kg) |
| DLAF-202S | 2 | 50 | 1630 | 30 | 6 | 10 | 177 | 174 | 625 | 36 |
| DLAF-203 | 3 | 75 | 1100 | 40 | 6 | 10 | 192 | 188 | 495 | 34 |
| DLAF-203S | 3 | 75 | 1630 | 50 | 6 | 10 | 192 | 188 | 640 | 36 |
| DLAF-204 | 4 | 100 | 1630 | 80 | 6 | 10 | 220 | 210 | 650 | 50 |
| DLAF-204S | 4 | 100 | 3000 | 100 | 20 | 10 | 220 | 315 | 890 | 72 |
| DLAF-206 | 6 | 150 | 4500 | 130 | 20 | 10 | 220 | 400 | 1095 | 86 |
| DLAF-208 | 8 | 200 | 5780 | 200 | 20 | 16 | 305 | 450 | 1190 | 161 |
(Note: Many sets in parallel can gain more flow)
Installation and connection
Please keep the drain valve’s outlet direction horizontal position or down position to ensure the sewage is discharged completely.(More filters in parallel could get bigger flow)
Application:
cyclone desander + DLAF self-cleaning filter
1. Dawning Environmental Protection Technology Co., LTD. was founded in 2002 with a registered capital of 10 million, which is a emerging technology company specialized in environmental water treatment. The main products include water filter,water descaling antiscale and water heating equipmenets etc series.
2.Our products have been already widely applied in the industrial and civil construction, steel, electric power, petrochemical,metallurgical, pharmaceutical, paper making, cars, hotels, municipal and other major industries.
3. Our factory covers an area of 13000 square which is domestic largest water filter production base.
3. We have a few professional engineers with over ten years experience in water filtration technology.
Send Inquiry to This Supplier
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