The utility model adopts pure UHMWPE as the raw material, and is processed into a medical overflow stop filter element through a special process. Breathable, when wetted by water, the pores close and become airtight and watertight. The sealing effect is extremely strong, and the filter element produced by the company can withstand the pressure of 5-10 meters of water column. Durability is 2-3 times higher than similar products.

Applications in the pharmaceutical industry:

1. Used for filtration and cleaning of antibiotic fermentation broth (daunorubicin, etc.)

2. Powdered activated carbon and decolorization filtration (medicinal glucose solution. Antibiotics. Synthetic drugs. Preparations. Traditional Chinese medicine and other liquids.

3. Injection solution.

4. Needle bottle washing water.

5. Filtration of fine crystals (for example, rifampicin fine crystals)

6. Oral liquid (Naoxin Shu. Ocean Treasure, etc.)

7. Chinese herbal extracts (alicin, etc.)

8. Industrial water filtration.

9. The injection is filtered through the air.

10. Drug filtration.

The medical overflow filter has the following 8 characteristics:

1. Material properties: Polyethylene uses UHWM-PE as the main medium, which is toxic, odorless, non-dissolving, physiologically safe, and meets GMP requirements.

2. Processing performance: secondary processing such as turning, milling, planing, ironing, thermal fusion welding, and bonding is used.

3. Regeneration performance: The capillary pores of PE medium have the elasticity of micro-expansion, and the combined action of water pressure, air pressure or water-air pressure can realize efficient backwash regeneration. Preservatives can be used to chemically dissolve and regenerate the blockages with an appropriate concentration of acid solution, so that the filtration performance of the media can be restored to the original, and the service life of the media can be improved.

4. Chemical properties: PE filter material has excellent corrosion resistance, can resist various non-strong oxidizing acids, alkali resistance, aldehyde resistance, aliphatic hydrocarbon resistance, radiation resistance, etc., excellent chemical properties, organic solvent resistance Excellent, resistant to organic solvents such as ester ketone. ether at below 80 °C.

5. Temperature resistance: maximum 30min, saturated steam temperature can reach 130℃, long-term use of PE does not exceed 80℃.

6. Mechanical properties: good toughness and strength, impact resistance, not easy to be damaged during installation and transportation.

7. Filtration performance: High filtration precision can reach 0.3 microns, high filtration efficiency, and solid particles below 0.3 microns can be effectively removed by controlling the starting pressure.

8. Physical properties: The specific gravity of the medium is light, and the theoretical specific gravity is 0.5-0.7g/ml.