Industrial Water Purifying Stainless Steel Screen Automatic Backwash Filter

                                            SS screen automatic backwashing filter

Product introduction
Automatic backwashing filter is applicable for all kinds of water supply systems, process water system and industrial cooling water, especially for the 24-hour-running system. It could filter the mechanical impurity in the water and make sure the safe and reliable running of the system and the equipment.
Structure and work principle Automatic backwashing filter is made up of the high quality carbon steel cartridge, stainless steel wedge strainer of special structure, electric actuating mechanism and drainage device. When the filter works, the electric actuating mechanism will lead the butterfly valve to open, the water flow gets into the filter through the entrance, after the filtering with the strainer to the exit. When the filter requires the drainage, the butterfly valve will close and the drainage valve will open. After the filtering with the first half of the strainer, part of the water flows into the system through the exit. The rest water will flow from the outer side of the second half of the strainer to the inner side. And it is discharged from the drainage exit. It is with the use of automatic backwashing of the strainer Then during the whole washing process the system could run normally without stop.

Technical parameters sheet

Model	A (mm)	Φ (mm)	Weight (Kg)	Inlet and outlet diameter		D (mm)	Max flow (T/h)
				mm	in
YL-2PZ	410	159	50	50	2	25	19
YL-2.5PZ	410	159	50	65	2.5	25	28
YL-3PZ	500	219	60	80	3	25	50
YL-4PZ	580	219	70	100	4	40	80
YL-5PZ	640	219	80	125	5	40	125
YL-6PZ	730	273	100	150	6	50	180
YL-8PZ	900	325	150	200	8	50	320
YL-10PZ	1000	377	180	250	10	50	490
YL-12PZ	1200	426	200	300	12	65	710
YL-14PZ	1350	478	266	350	14	65	970
YL-16PZ	1500	530	350	400	16	65	1260
YL-18PZ	1700	630	445	450	18	100	1590
YL-20PZ	1850	720	500	500	20	100	1970
YL-24PZ	2050	800	620	600	24	150	2850

Structure and working principle
Automatic backwashing filter is made up of the high quality carbon steel or SS filter housing, special structure stainless steel wedge screen, electric actuating mechanism and drainage device. When the filter start working, the electric actuating mechanism will lead the butterfly valve to open, the flowing water gets into the filter through the entrance, it reaches the outlet after filtered by screen.When the filter needs to discharge drainage, the butterfly valve will close and the drainage valve will open. The flowing water filtered by front half part of the screen, part of the water flows into the filter through the water outlet.

The remaining water will flow into internal part of the second half screen section from the screen outside .then it is discharged out from the drain outfall. It acted as automatic backwashing on the filter screen, Therefore the filter could run normally without stop during the whole washing process.

Other techanical parameters sheet.
work pressure: less than 1.0MPa
work temperature: less than 100 Centigrate
Pressure loss: less than0.015MPa
Filtering precision: 300-100 micron
Other configurations: working pressure, filtration degree and the filter specification could be manufactured based on buyers' special requirement. The flange connection dimension is according to GB-9119.9-88.

Technical characteristics:
1. High filtration degree and stable good quality water output.
2. Automatic backwashing is realized by the self retrieval and response function, it could deal with the unstable water quality fluctuation without manual intervention.
3. the control system is of sensitive response and precise operation, two different setting : pressure difference and time. The backwashing pressure difference and the time could be adjusted flexibly according to the different water source and filtration degree.
4. Successive water production during the backwashing process, continuous, stable and reliable working.
5.short time for backwash, the water consumption of backwashing is only 0.001-0.002% of lhe normal water production, saving the water,power and energy.
6. compact and scientific structure design. small occupation,convenient installation and moving