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




