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China Backwash Filter Suppliers - Precision Micro Filtration Equipment from Reliable Factory

The backwash filter is an advanced precision security filter and microfiltration equipment designed to protect membrane elements effectively. With filtration accuracy ranging from 0.1 to 500 microns, this essential component is vital for safeguarding supporting equipment such as ultrafiltration (UF) systems, nanofiltration (NF) devices, and reverse osmosis (RO) systems. Utilizing a backwash filter prevents particle contamination that can scratch membrane surfaces. Our backwash filters are available from trusted China suppliers and are manufactured in our state-of-the-art factory, ensuring durability with pressure vessels made from corrosion-resistant glass reinforced plastic or stainless steel. Enhance your filtration process and protect your investments with our high-quality backwash filters

    Equipment overview

    Backwash filter is a kind of precision security filter and also a kind of micro filtration equipment. Mainly is the filter core filter device, the filtration accuracy of 0.1-500 m range, can play a good role in protecting the membrane elements. According to the need to protect the supporting equipment, there are ultrafiltration (UF) backwash pump outlet, nanofiltration (NF) device, reverse osmosis (RO) device wash pump outlet need to configure backwash filter, to prevent particles into the membrane assembly, scratch the membrane surface.
    The pressure vessel of backwash filter can be made of corrosion-resistant glass reinforced plastic or stainless steel shell. The filter element is mainly composed of skeleton and filter cloth (cotton), mainly polypropylene folding type or melt-blown type filter element.
    Backwash Filter (1)
    Backwash Filter (2)
    Backwash Filter (3)

    Equipment features

    • The pass shape is conical structure;
    • Filtration can enter deep, forming deep filtration;
    • Large amount of pollution, long life;
    • The structure can meet the requirement of quick replacement of filter element;
    • The operating flow rate is not more than 10m3/m2.h(measured by the surface area of the filter element);
    • Filter precision has a variety of specifications, can provide 0.22 m, 0.4 m, 1 m, 5 m, 10 m, 20 m, 50 m, 75 m, 100 m and other different precision of the filter element.

    Conditions of use

    • 1. Security filter design pressure: less than 0.4Mpa
    • 2. Water pressure test pressure: 0.8Mpa
    • 3. Design temperature: 0℃-50℃
    • 4. Service life: under normal working conditions, the filter element can maintain the service life of about 4-8 months

    Scope of application

    It is suitable for further purification of water with low suspended impurities (turbidity less than 2-5 degrees).
    Frequently Asked Questions

    What is the primary function of a backwash filter?

    A backwash filter is a precision security filter and micro-filtration equipment designed to protect membrane elements. It filters particles within the 0.1-500 m range, preventing them from entering the membrane assembly and scratching the membrane surface.

    What materials are used for the backwash filter's pressure vessel and element?

    The pressure vessel can be constructed from corrosion-resistant glass reinforced plastic or a stainless steel shell. The filter element consists of a skeleton and filter cloth (cotton), typically using polypropylene folding type or melt-blown type filter elements.

    What are the main design features of this filter?

    It features a conical pass shape structure allowing for deep filtration, a high capacity for pollution, and a long service life. Its structure is engineered for quick replacement of the filter elements, with an operating flow rate of no more than 10m3/m2.h.

    What are the recommended operating conditions for the security filter?

    The recommended design pressure is less than 0.4Mpa, with a water pressure test limit of 0.8Mpa. The design temperature range is 0℃-50℃, and the filter element has a service life of about 4-8 months under normal working conditions.

    What is the ideal application scope for this backwash filter?

    It is highly suitable for the further purification of water that has a low concentration of suspended impurities, specifically where the water turbidity is less than 2-5 degrees.

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