PTFE sintered filter element, also known as polytetrafluoroethylene (PTFE) sintered filter element, is a filter element made of pure PTFE raw material sintered at high temperature and high pressure. The following is a detailed analysis of its filtering performance:

1、 Chemical stability

Excellent characteristics: Polytetrafluoroethylene hardly undergoes chemical reactions with other substances, which gives it extremely strong chemical stability. Therefore, during the filtration process, the filter element can effectively prevent the leakage or contamination of chemical substances, ensuring the purity and safety of the filtered liquid.

Application areas: This excellent chemical stability makes PTFE sintered filter widely used in various fields such as chemical engineering, medicine, and food, especially in the treatment of highly corrosive media.

2、 Heat resistance

High temperature stability: PTFE sintered filter element can withstand high temperatures up to 200 ℃, and even higher temperatures in some cases. This feature enables the filter element to operate stably for a long time in high temperature environments, meeting the filtration requirements of special processes.

Steam sterilization and filtration: Due to its high temperature resistance, this filter element can also be used for steam sterilization and steam filtration processes, ensuring filtration efficiency while achieving aseptic operation.

3、 Filtering accuracy

High precision filtration: The filtration accuracy of PTFE sintered filter can reach a very high level, with pore sizes ranging from 0.3 microns to 20 microns, and even up to 0.1 microns or less. This high-precision filtering capability enables the filter element to effectively remove small particles, bacteria, viruses, and other impurities from liquids or gases.

Application examples: In the pharmaceutical industry, this filter element is widely used for filtering and washing antibiotic fermentation broth, filtering oral liquids and medicinal wine, etc; In the chemical industry, it is used for filtering and washing various chemical solutions.

4、 Porosity and fluid flow rate

High porosity: The porosity of PTFE sintered filter element is over 50%, much higher than that of general metal sintered filter element. This enables the filter element to provide a larger fluid flow rate under the same filtration area, meeting the needs of high flow filtration.

Efficient filtration: The combination of high porosity and high precision enables the filter element to maintain high fluid flow while maintaining efficient filtration, thereby improving filtration efficiency.

5、 Other performance

Strength and toughness: The PTFE sintered filter element has high strength and toughness, and is not easily broken. This feature solves the problem of traditional metal filter cartridges being prone to breakage and extends the service life of the filter cartridge.

Smooth surface: The outer surface of the filter element is as smooth as wax, making it less prone to impurities and easy to clean. This feature further improves the filtration efficiency and service life of the filter element.

No "threshing" phenomenon: The inner and outer surfaces of the fully sintered filter element under high temperature and high pressure are very smooth and tightly bonded, and there will be no "threshing" phenomenon that pollutes the fluid.

6、 Application Fields

The PTFE sintered filter element has been widely used in multiple industrial fields due to its excellent performance. In addition to the pharmaceutical and chemical industries mentioned above, it also includes wastewater treatment, chemical fiber and textile industries, light industry and food industries, as well as machinery and petroleum industries. In these fields, filter cartridges are used for filtering and purifying various liquids and gases, providing strong guarantees for product quality and safety.

The PTFE sintered filter element has demonstrated outstanding advantages and wide application prospects in the field of filtration due to its excellent chemical stability, heat resistance, filtration accuracy, porosity, strength and toughness.