How to choose PTFE filter bag correctly?

"How to select PTFE filter bag correctly?"
PTFE filter bag is a common filter material, which is widely used in the filtration of liquid and gas in the industrial field. The correct selection of PTFE filter bag is very important to ensure the filtering effect and prolong the service life of the filter bag. The following will introduce how to correctly select PTFE filter bags from several aspects.
First of all, the proper selection of PTFE filter bag needs to consider the properties of the filtered medium. The material of PTFE filter bag is selected according to the acidity, temperature, viscosity and corrosiveness of the medium. Generally speaking, PTFE filter bags have good corrosion resistance for acid-base media and high-temperature media, and can meet the needs of most industrial applications. For the medium with high viscosity, it is necessary to select the PTFE filter bag with large aperture to avoid blocking.

Secondly, the correct selection of PTFE filter bag needs to consider the size of filter particles. The filtration accuracy of PTFE filter bag is selected according to the size of particles in the medium to be filtered. Generally speaking, the filtration accuracy of PTFE filter bag can be selected between 0.1 μ m and 100 μ M. Smaller particles need to choose smaller filtration precision, while larger particles can choose larger filtration precision.
Thirdly, the correct selection of PTFE filter bag needs to consider the filtration flow and pressure. The specification and model of PTFE filter bag are selected according to the filter flow and pressure. Larger filter flow requires larger volume and larger filter area to ensure the service life and filtering effect of the filter bag. At higher pressure, PTFE filter bags with strong pressure resistance should be selected.
In addition, the correct selection of PTFE filter bag also needs to consider the use environment and operating conditions. The material and surface treatment of PTFE filter bag shall be selected according to the temperature, humidity, anti-corrosion requirements and other conditions of the service environment. In humid environment, PTFE filter bag with surface hydrophobic treatment can reduce the adhesion of pollutants and prolong the service life of the filter bag.
Finally, the correct selection of PTFE filter bag also needs to consider the economic and practical application needs. According to the economic cost and practical application needs, the suitable PTFE filter bag is selected. Sometimes, you can choose alternatives with similar functions but relatively low prices to PTFE filter bags.
In short, the selection of PTFE filter bag needs to consider many aspects, such as media properties, filter particle size, filter flow and pressure, use environment and operating conditions, as well as economic and practical application requirements. By comprehensively considering these factors, the appropriate PTFE filter bag can be correctly selected to improve the filtering effect and the service life of the filter bag.