0102030405
sintered PTFE filter
application of Sintered PTFE Filter
| Parameters | Specification Range | |||||
| Diameter (mm) | 20, 25, 30, 35, 40, 45, 50, 60, 1000 (customizable) | |||||
| Length (inch) | 5“, 10”, 20“, 30”, 40” (customizable to 1500mm) | |||||
| Filtration accuracy (μm) | 0.1, 0.3, 0.45, 1, 3, 5, 10, 20, 30, 50, 80, 100 | |||||
| Porosity | 30%-55% | |||||
| Temperature range | -190℃~260℃ (short-term up to 300℃) | |||||
| Pressure Resistant Strength | 0.3-0.8MPa | |||||
| Interface Type | M20, M30, 222, 226, Flush, Platen (Customizable) | |||||
product Display
Production process Sintered PTFE Filter
1. Raw material preparation: Pure PTFE powder is used, sieved and premixed.
2. Press molding: Fill the powder into the mold and preform it into tube or bar embryo under high temperature (50-80℃) and high pressure.
3. Sintering process:
- Drying zone (100-250℃): remove solvent oil and other impurities.
- Sintering zone (350-400 ℃): high-temperature molten particles, forming a uniform porous structure.
- Cooling zone: Slowly cool down to room temperature to prevent cracking.
4. Post-treatment:
- Etching (optional): Enhance surface properties (e.g. anti-adhesion) by chemical treatment.
- Cleaning and testing: Removal of residues and testing for airtightness and accuracy.
2. Press molding: Fill the powder into the mold and preform it into tube or bar embryo under high temperature (50-80℃) and high pressure.
3. Sintering process:
- Drying zone (100-250℃): remove solvent oil and other impurities.
- Sintering zone (350-400 ℃): high-temperature molten particles, forming a uniform porous structure.
- Cooling zone: Slowly cool down to room temperature to prevent cracking.
4. Post-treatment:
- Etching (optional): Enhance surface properties (e.g. anti-adhesion) by chemical treatment.
- Cleaning and testing: Removal of residues and testing for airtightness and accuracy.
Advantages Sintered PTFE Filter
1. Corrosion resistance: Resistant to strong acids (e.g. sulfuric acid, hydrochloric acid), strong bases and organic solvents.
2. High temperature stability: Long-term working temperature up to 200℃, support steam sterilization.
3. High porosity and flow rate: porosity of more than 50%, fluid flux is 30% higher than metal cartridge.
4. Easy to clean: smooth surface like wax, impurities are not easy to adhere to, can be repeatedly cleaned and regenerated.
5. No risk of degranulation: smooth inner and outer surfaces, no particles falling off to contaminate the fluid.
6. ozone resistance: suitable for ozone sterilization environment (such as pharmaceutical, food industry).
2. High temperature stability: Long-term working temperature up to 200℃, support steam sterilization.
3. High porosity and flow rate: porosity of more than 50%, fluid flux is 30% higher than metal cartridge.
4. Easy to clean: smooth surface like wax, impurities are not easy to adhere to, can be repeatedly cleaned and regenerated.
5. No risk of degranulation: smooth inner and outer surfaces, no particles falling off to contaminate the fluid.
6. ozone resistance: suitable for ozone sterilization environment (such as pharmaceutical, food industry).
Parameter of Sintered PTFE Filter
| Fields | Specific Applications |
| Pharmaceutical industry | Water filtration for injection, decarbonization of pharmaceutical solution, sterile air filtration. |
| Chemical industry | Aluminum hydroxide, phosphor and other catalyst filtration, acid and alkali solution fine filtration. |
| Food & Beverage | Wine clarification, edible oil filtration, food additive purification. |
| Environmental Protection & Wastewater | Industrial wastewater treatment (e.g., oily wastewater), exhaust particulate interception. |
| Electronics & Semiconductors | Ultrapure water preparation, chemical filtration (e.g. photoresist). |
| Energy & Oil | Electrolyte filtration (lithium batteries), oilfield reinjection water treatment. |