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High-Flow Sintered PP Filter Suppliers in China | Reliable Chemical Resistance Factory Solutions
Product Parameter Table
| Parameter Category | Detailed Index |
|---|---|
| Material | Polypropylene (PP) |
| Filtration Accuracy | 0.1-100μm (can be customized 0.3μm, 1μm, 5μm, etc.) |
| Outer/Inner Diameter | Outer Diameter: 35-150mm (commonly used 60-115mm); Inner Diameter: 28-30mm |
| Length | 5-60 inches (approx. 130-2000mm) |
| Temperature Range | -30°C to 100°C (conventional); some high-temperature models up to 125°C (short-term) |
| Working Pressure | ≤0.4MPa (conventional); high pressure models up to 50bar |
| Porosity | 30%-60% |
| Chemical compatibility | Resistant to strong acids (such as sulfuric acid, hydrochloric acid), strong alkalis, organic solvents (ethanol, acetone, etc.) |
Production Process
1. Raw material mixing
Mix polypropylene powder with additives in proportion to ensure material homogeneity.
2. High-temperature molding
Heating and melting at about 150℃, and pressing into the initial embryo through the mold.
3. Cooling and shaping
Use circulating water to cool indirectly and solidify the structure quickly.
4. Sintering process
- Primary sintering: sintering at 700-750℃ to form a porous skeleton structure.
- Vacuum sintering: in the argon gas protected environment at 1000-1380℃ to eliminate pore cracks and enhance the densification.
5. Post-processing
Cutting, polishing, testing (e.g. bubble point test, integrity test).
Product Advantages
✔
chemical stability
Acid and alkali resistance, organic solvents, suitable for corrosive media filtration.
✔
High-precision filtration
The minimum precision can be up to 0.1μm, effectively retain microorganisms, colloids and so on.
✔
High flow rate and low resistance
Gradient pore design, large dirt-holding capacity and low differential pressure.
✔
long life
Can be regenerated by back-washing, high reuse rate.
✔
Environmental protection and safety
No adhesive, in line with FDA and GMP standards, suitable for food and pharmaceutical industries.
Application Fields
| Fields | Specific application scenes |
|---|---|
| Water treatment | Ultrapure water preparation, RO pre-filtration, drinking water purification |
| Pharmaceutical industry | Pharmaceutical liquid sterilization filtration, injection water treatment |
| Chemical industry | Acid and alkali liquid filtration, organic solvent purification (such as methanol, ethanol) |
| Food & Beverage | Wine clarification, fruit juice filtration, edible oil purification |
| Electronics | Chip manufacturing ultrapure water filtration, plating solution purification |
| Environmental Protection | Industrial waste water treatment, oil and gas separation |
Frequently Asked Questions
What materials are used to manufacture these filters?
The filters are made of high-quality Polypropylene (PP), which provides excellent chemical compatibility and resistance to strong acids, strong alkalis, and organic solvents.
What is the filtration accuracy range?
The standard filtration accuracy ranges from 0.1μm to 100μm. Customized specifications such as 0.3μm, 1μm, and 5μm are also available based on specific requirements.
What are the temperature and pressure limits for these filters?
The conventional working temperature range is -30°C to 100°C (with high-temperature models reaching up to 125°C short-term). The conventional working pressure is ≤0.4MPa, while high-pressure models can withstand up to 50bar.
Can the filters be reused or regenerated?
Yes, these filters offer a long service life and can be regenerated through back-washing, resulting in a high reuse rate and cost efficiency.
Are these filters safe for food and pharmaceutical applications?
Yes, the production process uses no adhesives, and the filters comply with FDA and GMP standards, making them fully suitable for the food, beverage, and pharmaceutical industries.