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Porous Sintered PE Filter for Water, Oil, Air, and Dust Filtration - China Suppliers and Factory

Introducing our Sintered PE Filter, an essential solution for vacuum filtration, pressure filtration, and gravity filtration applications. As a trusted supplier in China, our factory ensures the highest quality standards in manufacturing these filters, making them ideal for a variety of industrial needs. To maximize the efficiency of your filtration process, it is crucial to understand and master the key operational points associated with our Sintered PE Filter. Experience superior performance with our reliable filtration solutions produced in China

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    Product Overview

    Sintered PE Filter can be used for vacuum filtration, pressure filtration or gravity filtration. In order to use this product well, the following points must be mastered:

    1. Correct selection of filtration parameters (optimum filtration pressure difference, filtration speed and filtration area, etc.), therefore, a small test to determine the design parameters must be carried out in advance.
    2. According to the requirements for filtration in production and the characteristics of porous PE media, the mechanical structure of the filter should be correctly designed.
    3. There must be certain operating procedures during use, especially at least 5-10 minutes of low-pressure 0.3-0.5kg/m2 filtration at the start-up stage. It is forbidden to reach the normal operating pressure as soon as it is started otherwise the capillary pores will be blocked too quickly, which will significantly reduce productivity.
    4. The porous PE filter should be equipped with a certain volume of air bags (one air bag can be used for several filters) for back blowing slag removal and back blowing regeneration. The back blowing pipeline should be thicker and the back blowing valve Ball valves or cocks should be used, the blow back speed should be fast, and the blowing time should not be long, generally no more than 1 second, otherwise the compressed air will be wasted.
    5. According to the characteristics of different materials, different regeneration operation procedures should be formulated.

    Parameter of Sintered PE Filter

    Parameters Specifications/Values
    Material High Density Polyethylene (HDPE)
    Outer Diameter 30-120 mm (can be customized)
    Inner Diameter 20-60 mm (can be customized)
    Length 250-1000 mm (customizable)
    Filtration accuracy 1-100 μm (gradient filtration supported)
    Operating temperature ≤80℃
    Compressive strength ≤0.5Mpa
    Flow rate (10 inches) 1-5 m³/h (adjustable according to precision and pressure)
    PH Range 1-14 (strong acid and alkali environments)
    Cleaning method Air-water backwashing, chemical cleaning

    Production Process of Sinter PE Filter

    1. Raw Material Preparation

    Select HDPE granules, mix and granulate (hydrophilic modifier or conductive material can be added).

    2. Sintering and Molding

    Sintering at high temperature (200-300℃) under high pressure to form a uniform porous structure.

    3. Processing and Cutting

    Cut into cartridge sizes as required, end caps are ultrasonically welded or glued for sealing.

    4. Cleaning and Testing

    Remove residual particles, conduct bubble point test, flow test and integrity test.

    5. Packaging and Sterilization

    Medical grade products need to be sterilized by gamma rays, regular products are vacuum packed.

    Performance Of Sinter PE Filter

    • Material properties: PE with UHMWPE as the main medium has the characteristics of non-toxic, tasteless, no foreign matter dissolution, and biochemical safety.
    • Chemical properties: PE filter media has excellent corrosion resistance, and can withstand various non-strong oxidizing acids, Alkali resistance, aldehyde resistance, aliphatic hydrocarbon resistance, radioactive radiation resistance, etc., excellent chemical properties, and good resistance to organic solvents. Below 80°C it can resist ester ketone, ether and other organic solvents.
    • Temperature resistance: the highest Saturated steam temperature can reach 130°C, long-term continuous use does not exceed 80°C.
    • Mechanical properties: good toughness and strength, impact resistance, not easy to damage.
    • Filtration performance: Filtration accuracy range (0.2-200 microns), high filtration efficiency, controlling the initial pressure can effectively remove solid particles above 0.2 microns.
    • Physical properties: The specific gravity of the medium is light, and the theoretical specific gravity is around 0.5-0.7g/ml.
    • Regeneration performance: The capillary pores of PE media have the elasticity of microscopic expansion, and can be efficiently reversed and regenerated by water pressure, air pressure or water-air pressure. Ensure that it can use the acid solution of appropriate concentration to chemically dissolve and regenerate the blockage, so that the filtration performance of the medium can be restored to the original state, and the service life of the quality can be improved.
    • Processing performance: Secondary processing can be carried out by turning, milling, planing, ironing, hot melt-welding, bonding, etc.
    • Basic characteristics: It is manufactured by a special sintering process, in which plastic particles are heated to its surface until soft, and melts on the contact surface while approximately retaining its original shape. The resulting shaped body has open continuous pores, the size and number of which depend on the sintering conditions and the size selection of the polymer particles.

    Feature Of Sinter PE Filter

    • Large flow: high porosity (around 50%) ensures greater fluid flow per unit area.
    • Smooth surface: smooth surface, impurities are not easy to stick, back washing is easy and thorough, and can be reused.
    • Strong anti-fouling ability: high filtration accuracy makes it difficult for impurities to remain in the filter body, and can press the sludge to a water content of 70%.
    • Excellent cost performance: the filter element has excellent comprehensive performance and high cost performance, and is suitable for water treatment, environmental protection sewage treatment, reclaimed water reuse, chemical product filtration and other working conditions with large flow.
    • Resistance to strong acid and strong alkali corrosion, Resistance to various high temperature and strong corrosive chemical raw materials filtration, and resistance to dissolution of organic solvents.
    • Excellent strength and wear resistance ensure its service life.
    • The surface of outer light makes it difficult for impurities to stick together.
    • Good toughness, the filter element is not easy to break.
    • No threshing phenomenon.
    • Strong pressure resistance.

    Application of Sinter PE Filter

    Sinter PE filter can be used as a filter medium for heterogeneous phase separation (solid-liquid, gas-solid, gas-liquid, liquid-liquid) in a physical sense. Used for solid-liquid separation: the application of clarification filtration or filter plate filtration, the filtration efficiency of solid particles above 0.2 microns can reach more than 99.7%.

    (1) Pharmaceuticals & Food

    Filtration of liquid medicine for injections in the pharmaceutical industry, bottled water for washing injections, separation and filtration of tetracycline production, and fine filtration of corn, soybean, and rapeseed edible oils.

    (2) Environmental Water Treatment

    Purification of heavy metal salts in electroplating solutions, treatment of industrial wastewater containing cadmium, copper, chromium, nickel, lead, etc., recycling of coal-containing wastewater, flue gas water liquid depressurization filtration, and dry dust recovery.

    (3) Chemical Industry

    Precision filtration of liquid products, raw materials, and intermediates (acids, alkalies, salts, organic solvents), acid/sulfur filtration in chemical fiber production, brine filtration in chloral-alkali, activated carbon filtration in glyphosate production, and plate/frame filter press applications.

    (4) Non-Ferrous Metals

    Preparation processes for nickel chloride, cobalt chloride, nickel oxalate, cobalt carbonate, and nickel carbonate, including decalcification and iron filtration of pickling solutions, and filtration/washing of crystallization solutions.

    Sintered PE cartridges can be customized in hydrophobic (gas filtration) or hydrophilic (liquid filtration) versions with different interfaces (e.g. NPT thread, flat port). For high temperature or high pressure scenarios, a reinforced construction design is recommended. For further technical specifications or sample testing, please contact us for support.

    Frequently Asked Questions (FAQ)

    What is the filtration accuracy of Sintered PE Filters?

    Sintered PE Filters offer a filtration accuracy range of 1 to 100 μm (supporting gradient filtration). The initial pressure can be controlled to effectively remove solid particles down to 0.2 microns with a filtration efficiency of over 99.7%.

    What is the maximum operating temperature for Sintered PE Filters?

    The recommended long-term continuous operating temperature for Sintered PE Filters is ≤80℃. However, they can withstand saturated steam temperatures up to 130°C for short periods.

    How do you clean and regenerate Sintered PE Filters?

    They can be regenerated efficiently using air-water backwashing, back blowing, or chemical cleaning (using suitable acid solutions to dissolve blockages) due to the microscopic elastic expansion properties of the PE capillary pores.

    Are Sintered PE Filters chemically resistant?

    Yes, Sintered PE Filters exhibit exceptional chemical resistance with a pH range of 1-14. They can withstand strong acids, alkalis, aldehydes, aliphatic hydrocarbons, radioactive radiation, and various organic solvents below 80°C.

    Can Sintered PE cartridges be customized for specific applications?

    Yes, they are highly customizable. Sintered PE cartridges can be manufactured in hydrophobic versions for gas filtration or hydrophilic versions for liquid filtration. Custom options also include various dimensions, lengths (250-1000 mm), and connection interfaces like NPT threads or flat ports.