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Reverse Wash Filter - High - efficiency Self - cleaning & Continuous Filtration Model

DATE:2025-04-30Number of views: Source:LEFILTER

With automatic reverse - flow cleaning technology, the reverse wash filter achieves efficient impurity interception and filter element regeneration. Combining high - flow processing and low - maintenance costs, it serves as a core device for industrial fluid purification.

I. Product Introduction

Automatic backwash filter is mainly composed of filter housing, stainless steel filter screen, electric blowdown valve and blowdown device. When the water filter is working, the backwash butterfly valve plate is opened, and the water enters the filter element from the inlet, then flows through the filter screen, and then flows out of the system, and the impurities are intercepted inside the filter element. When the water filter needs to sewage, you can close the butterfly valve plate and open the sewage valve.

II. Working Process

  1. Normal Filtration Phase: The fluid to be filtered enters the filter through the inlet, and impurities such as sediment and rust are intercepted by the filter screen. The clean fluid flows out from the outlet.

  2. Differential Pressure Trigger: When the pressure difference across the filter screen reaches the set threshold (e.g., 0.05MPa) or the preset time cycle is completed, the control system initiates the reverse wash process.

  3. Reverse Flushing Process: The drain valve opens, and a portion of clean fluid flows back from the outlet, creating a high - pressure reverse flow. This flow vigorously flushes the filter screen surface, washing impurities into the drain pipeline. The flushing time is approximately 20 - 60 seconds.

  4. Resume Operation: After flushing, the drain valve closes, and the filter returns to normal filtration, continuing the cycle.


III. Product Features

Key AdvantagesDescription
Automatic Reverse CleaningDual - mode activation (pressure difference/timer) eliminates manual disassembly, improving cleaning efficiency by 70%.
High - flow Uninterrupted FiltrationSingle - unit processing capacity ranges from 10 - 1000m³/h, ensuring continuous production during cleaning.
Adjustable Screen PrecisionFiltration accuracy adjustable from 10 - 3000μm, with PP and stainless - steel screen options for diverse applications.
Energy - saving DesignWater consumption per flush is less than 2% of the total flow, reducing waste and operational costs.
Intelligent Monitoring SystemSupports PLC remote control, enabling real - time monitoring of pressure difference and flushing status for smart operation.

IV. Technical Parameters

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Backwash filter04

V. Application Fields

IndustryApplication ScenariosCore Value
PetrochemicalCirculating cooling water filtration, raw oil pre - treatmentPrevents pipeline blockages, protects key equipment, and enhances production stability.
Power IndustryTurbine lubricating oil filtration, cooling tower water purificationRemoves particulate impurities, extends equipment lifespan, and reduces downtime risks.
Food and BeverageProduction line water filtration, syrup clarificationEnsures product hygiene, improves quality, and boosts production efficiency.

VI. FAQ

  1. Does the reverse wash process affect normal fluid supply?
    The flush uses only a small amount of backflow fluid (less than 2% of the total flow), maintaining continuous supply to the main process.

  2. How to select the appropriate screen precision?
    Choose based on fluid impurity size: 100 - 500μm for sediment interception, and 10 - 50μm for protecting precision equipment.

  3. What is the equipment maintenance cycle?
    Under normal conditions, the equipment can operate continuously for 1 - 2 years, requiring only periodic checks of the drain valve and control system.

VII. Conclusion

The reverse wash filter stands out as an optimal solution for industrial fluid purification, featuring high - efficiency self - cleaning and continuous filtration. Whether in high - load production or industries with strict water quality requirements, customized configurations ensure stable and reliable operation. With the advancement of industrial automation, the device will continue to optimize intelligent control technology, providing energy - efficient filtration solutions for more sectors.


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VIII. Related Products

1.Sucking type self-cleaning filter

2.Brush type self-cleaning filter