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Pre-Filtration Auto Self Cleaning Strainer Water Filter
**Product Specifications:**
- **Model No.:** YLF-80
- **Product Name:** Auto Self-Cleaning Strainer Water Filter
- **Material:** Carbon Steel / Stainless Steel
- **Flow Rate:** 28 m³/H
- **Inlet and Outlet:** DN50mm / 2 Inch
- **Drain Diameter:** DN40mm
- **Working Pressure:** Less than 1.0 MPa
- **Working Temperature:** Less than 100°C
- **Pressure Loss:** Less than 0.015 MPa
- **Filtering Precision:** 80–500 mm
- **Interface:** Flange
- **Trademark:** YLD
- **Specification:** CE, SGS
- **Origin:** Jiangyin, Jiangsu, China
- **HS Code:** 8421219990
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**Pre-Filtration Auto Self-Cleaning Strainer Water Filter**
The Auto Self-Cleaning Strainer Water Filter is designed with metal filter cartridges inside. When the filter elements become clogged, a specially designed back-flushing arm cleans each element one by one. During filtration, water enters the element from both ends. During self-cleaning, the top end partially opens, and the water is flushed out through the bottom end.
This type of strainer offers a large filtering area, high flow rate, compact structure, and high reliability, making it ideal for high-flow and dirty water filtration applications. The XF series has two sub-series: M Series for low flow rates or filtration at ratings above 300 μm, and S Series for filtration at ratings below 300 μm. Single filter flow rates range from 5 to 3000 m³/h, with inlet and outlet nozzles ranging from 2" to 24".
The auto self-cleaning strainer is capable of removing solid particles from water and low-viscosity liquids (such as metalworking coolant). It ensures the fluid meets cleanliness requirements and protects downstream key equipment from clogging, abrasion, and fouling. This improves the efficiency and service life of the key equipment. The XF series auto self-cleaning strainer operates continuously on-line, reducing downtime, maintenance, and labor costs. It is an ideal solution for water and low-viscosity liquid self-cleaning filtration.
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**Working Principle:**
- **Filtering:** Liquid flows into the filter via the inlet. Part of the liquid flows directly through the filter elements from the lower ends, while another part flows through the distribution pipe into the upper part of the filter. Then, it flows into the filter elements from both the upper and lower ends. Impurities are intercepted by the elements, and the filter cake gradually accumulates, leading to an increase in pressure drop between the inlet and outlet. This indicates that the filter cake has reached a certain thickness, and the flux of the filter element decreases.
- **Back-Flushing:** When the preset pressure drop or time exceeds, the self-cleaning program is triggered. A gear motor drives the cleaning arm to target one element, partly closing the upper end and connecting the lower end to the cleaning nozzle. The cleaning valve then opens, connecting the element to the discharge pipe. The differential pressure between the outside of the element and the discharge nozzle causes the filtrate to back-flush the filter element, dislodging the filter cake and purging it downward into the sewage pipe. After one element is cleaned, the cleaning valve closes, and the cleaning arm moves to the next element. Once all elements are cleaned, the entire back-flushing sequence is completed.
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**Features of SS Multi-Cartridge Automatic Backwash Filter:**
- Typically used in large flow-rate water with high filtration degrees, such as 50–100 microns.
- Contains 5 to 20 or more stainless steel (SS) filter cartridges.
- After one day of operation, all filter cartridges are backwashed based on set parameters or pressure control.
- Particles accumulated on the cartridges are washed away during the backwash process.
- The drain valve opens during backwash, allowing particles to be discharged.
- For example, backwash time for each cartridge lasts 10–20 seconds.
- If there are 10 SS cartridges, the total backwash time will be 220–240 seconds.
- After backwashing, the filter returns to the next filtration period (usually 24 hours).
- You can set the backwash cycle according to practical needs, such as twice or three times every 24 hours.
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**Technical Specifications Table:**
| Model | Flow (T/h) | Inlet and Outlet (mm) | Drainage Diameter (mm) | D (mm) | H (mm) | H1 (mm) | H2 (mm) |
|---------|------------|------------------------|--------------------------|--------|--------|---------|---------|
| YLF-50 | 70 | DN50 | DN50 | 300 | 1690 | 265 | 640 |
| YLF-80 | 80 | DN80 | DN50 | 350 | 1720 | 265 | 660 |
| YLF-100 | 120 | DN100 | DN50 | 400 | 1760 | 265 | 680 |
| YLF-200 | 200 | DN200 | DN80 | 500 | 1860 | 290 | 715 |
| YLF-250 | 280 | DN250 | DN80 | 600 | 1930 | 290 | 755 |
| YLF-300 | 450 | DN300 | DN100 | 700 | 2040 | 335 | 755 |
| YLF-350 | 600 | DN350 | DN100 | 800 | 2105 | 335 | 770 |
| YLF-400 | 800 | DN400 | DN100 | 1000 | 2220 | 335 | 800 |
| YLF-500 | 1000 | DN500 | DN100 | 1200 | 2360 | 365 | 825 |
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**Frequently Asked Questions:**
01. What is the capacity (m³/hour) you require for this equipment?
02. What is the material for this filter? Carbon steel or stainless steel (SS304/SS316)?
03. What is the filtration degree? 10 micron or 200 micron?
04. What is the power supply in your country? 220V/60Hz or other?
If you have any specific questions or need further assistance, feel free to reach out. We're here to help!