What are the choices of filter density and material of filter bag

2024-01-19 14:21:44

The choice of filter density and material for the filter bag depends on the specific filtration application and requirements. Different applications require different types of filter bags, the following are some common filter density and material options, filter bag manufacturers said:

Filter density:

Coarse filter: Coarse filter is usually used to filter larger particles or particulate matter, the purpose is to remove coarse impurities. Coarse filtering usually uses larger mesh or mesh, and the filter density is lower.

Medium filter: Medium filter is suitable for general particle filtration and can be used to remove medium sized particles and suspended matter. Medium filters usually have medium screen density.
Fine filtration: Fine filters are used for more demanding particulate matter removal and can remove smaller particles and particulates. Fine filters usually have a higher screen density.

Ultrafine filtration: Ultrafine filters are used to remove tiny particles and particulates and are commonly used in applications such as fine chemistry, medicine, and semiconductor manufacturing. Ultrafine filter screen density is very high.

Filter material:

Plastic filter bags: Plastic filter bags are usually used to filter corrosive liquids or chemicals, and common plastic materials include polypropylene (PP) and polyethylene (PE).

Mesh filter bags: Mesh filter bags are usually used for pre-filtration or primary filtration of large particles. Mesh filter bags are usually made of stainless steel or other metals.

Fiber filter bags: Fiber filter bags are commonly used in general filtration applications, and common materials include polyester (PET), polypropylene (PP) and nylon (PA).

Fabric filter bags: Fabric filter bags are usually used for filtration under high temperature and high pressure conditions, and common materials include glass fiber, ceramic and metal fiber.

Pleated filter bags: Pleated filter bags usually use polyester, polypropylene and other synthetic materials, can provide a larger filter surface area, suitable for high flow and high pollution load applications.

The selection of filter density and material should be based on specific filtration requirements, flow rate, particle size and liquid properties. In addition, it is also necessary to consider the chemical resistance of the filter bag, temperature resistance, and easy replacement and cleaning. Therefore, when selecting filter density and material, it is recommended to consult a professional filter equipment supplier or engineer to ensure that the filter bag is selected for the specific application.