Precision filters are a general term for membrane filters, abbreviated as MF, which are divided into sanitary filters, security filters, etc;

The sanitary grade filter is composed of a foldable microporous membrane filter element and a stainless steel outer cylinder. It is equipped with a single (or multiple) filter elements and can be designed according to the different flow requirements of customers. The filter cylinder is connected by quick opening blade nuts or ordinary nuts, making it very convenient to install, remove, and clean the filter element. The inner surface of the filter is polished with mirror finish (roughness Ra ≤ 0.2um) or electrolytic polishing, without any hygiene dead corners, in compliance with the requirements of "GMP" standards.

The working principle of the security filter is to use the 5 μ m pores of the PP filter element for mechanical filtration. Trace suspended particles, colloids, microorganisms, etc. remaining in water are intercepted or adsorbed on the surface and pores of the filter element. As the water production time increases, the operating resistance of the filter element gradually increases due to the pollution of intercepted substances. When the water pressure difference between the inlet and outlet reaches 0.1 MPa, the filter element should be replaced. The main advantages of security filters are high efficiency, low resistance, and easy replacement.