Differential Pressure and Time Control Auto Self-Cleaning Strainer
Model NO.: YLF-200
Material: Carbon Steel / Stainless Steel (SS304, SS316L)
Working Pressure: Less Than 1.0 MPa
Working Temperature: Less Than 100°C
Pressure Loss: Less Than 0.015 MPa
Filtering Precision: 100–3000 Micron
Interface: Flange
Flow Rate: 200 m³/h
Inlet and Outlet Diameter: 8 Inch
Drain Diameter: 3 Inch
Trademark: YLD
Specification: CE, SGS
Origin: Jiangyin, Jiangsu
HS Code: 8421219990
The multi-core self-cleaning filter is designed with an internal mechanical structure that allows for true backwashing, ensuring thorough cleaning of impurities on the strainer. There are no dead zones during washing, and there’s no loss in flow rate, which guarantees high filtration efficiency and long service life.
It features a wedge-type stainless steel filter (304/316L), known for its strength, precision, and corrosion resistance. The filtering precision can reach up to 25 microns. With few wearing parts and no consumables, this filter offers low maintenance costs and easy operation.
The control system is highly responsive and precise, allowing users to adjust both pressure difference and time settings according to different water sources and filtration needs.
Introduction:
This self-cleaning filter uses metal filter cartridges. When the elements become clogged, a specially designed back-flushing arm cleans them one by one. During filtration, water enters from both ends of the element. During self-cleaning, the top end partially opens while the bottom end flushes out the contaminants.
The large filtration area, high flow rate, compact design, and high reliability make it ideal for applications involving high flow rates and dirty water. The XF series includes two sub-series: M Series for low flow or filtration above 300 μm, and S Series for filtration below 300 μm. Single filter flow ranges from 5–3000 m³/h, with inlet and outlet sizes ranging from 2" to 24".
This filter effectively removes solid particles from water and low-viscosity liquids (such as metalworking coolants). It ensures fluid meets cleanliness standards and protects downstream equipment from clogging, abrasion, and fouling. It enhances the efficiency and lifespan of key equipment. The XF Series self-cleaning filter operates continuously online, reducing downtime, maintenance, and labor costs. It is an ideal solution for water and low-viscosity liquid self-cleaning filtration.
Working Principle:
[Filtering] Liquid flows into the filter via the inlet. Part of the liquid passes directly through the filter elements from the lower end, while another part flows through the distribution pipe into the upper part of the filter and then enters the filter elements from both the upper and lower ends. Impurities are intercepted by the elements, and a filter cake gradually builds up, causing an increase in the pressure drop between the inlet and outlet. This indicates that the filter cake has reached a certain thickness, and the flow rate of the filter element begins to decrease.
[Back-Flushing] When the preset pressure difference or time is exceeded, 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 backwash 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 complete.
| Model | Flow (T/h) | Inlet & Outlet Diameter (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 |
FAQ:
01. What is the required capacity (m³/h) for this equipment?
02. What material do you prefer 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?
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