“Filtration” refers to the separation of small solid particles or aerosol particles in a fluid (gas/liquid) from the fluid. The device used to achieve this separation is the filter device. The filter device must be installed with a filter element.Only when the filter material in the filter element has a higher filtration efficiency that the fluid would become pure or sterile.
The main feature of the folded membrane is :high rate rejection , low pressure difference and wide chemiacal compatibility;Hot melt and welding process, no ashesive, no foreign material released
Introduction of PUNO folding membrane filter element types
①Polypropylene folding membrane filter element
This filter cartridges media is manufactured from China-made thermal-sprayed PP fiber membrane, featuring large dirt holding capacity, quick passage rate, and high interception efficiency. The complete PP structure is not only economical and practical, but also stable with quality of international level.
②Hydrophobic Polytetrafluoroethylene foldind membrane element
This type of filter cartridges are made of hydrophobic PTFE microporous filter membrane material, it is the ideal filter element for gas filtration, special gas process, gas dewatering, compressed air filtration, etc
③Hydrophilic Polytetrafluoroethylene foldind membrane element
This type of filter element adopts hydrophilic polytetrafluoroethylene filter membrane as filter medium, without prewetting to filter polar aqueous solution with low concentration of solvent. With a wide range of chemical compatibility, suitable for alcohols, ketones, esters and other solvent pre-filtration and sterilization filtration, filter element has high retention efficiency, high guarantee, long service life.
④Pharmaceutical Grade Polythersulfone Cartridge
Polyethersulfone filter element has a wide range of chemical compatibility, pH range from 3 to 11, the filter element has the characteristics of large flow and long service life.Meet the new GMP sterile filtration verification requirements.
Good hydrophilicity, easy to wet, absolute filtration precision removal efficiency, can withstand multiple high temperature online sterilization;
Filter elements are independently numbered, with traceable batch production records, and 100% integrity test for each piece.
⑤Hydrophilic polyvinylidene fluoride PVDF membrane folding filter cartridge
This series filter element is made of hydrophilic polyvinylidene fluoride PVDF membrane material, the material has good temperature resistance, can be used in 80-90℃ high temperature for a long time, with low precipitation, with a wide range of chemical compatibility.
The main features
Extremely low protein adsorption, suitable for the application of biological blood products;
Corrosion resistance, high temperature resistance, oxidation resistance, with good chemical adaptability;
Filter element 100% through the integrity test, and by high pure water washing, no fiber shedding, low precipitation.
Typical applications
Prefiltration and fine filtration of high-protein solutions in vaccines, biological products and blood products;
Sterile raw materials, media and other pre-filtration and fine filtration;
Containing surfactant or high temperature solution, etc.
⑥Nylon series folding filter element
Nylon series filter element is made of natural hydrophilic nylon N6 and N66 membrane, which is easy to wetting, has good tensile strength and toughness, low dissolution, and has a wide range of chemical compatibility.
The main features：
Filter membrane alkali resistance, good toughness, very low dissolution, acetone, alcohol and other organic solvent filtration;
The filter element passes the integrity test 100%, and is washed with high purified water, without fiber shedding;
The filter membrane is naturally hydrophilic and does not require pre-wetting.
Typical applications：
High purity chemicals, ketone, ester, ether, alcohol and alkaline liquid filtration;
Ultrapure water equipment, optical disc, display, and polysilicon ultrapure water filtration;
Filtration of pure water, mineral water, fruit juice, beer and alcohol in food and beverage;
In the pharmaceutical industry, sterile raw materials, large and small infusions, lyophilized powder needles,
buffers, reagents and other sterilization filtration.
Post time: Jul-08-2021