Hydrophilic PTFE Folded Filter CartridgeProduct descriptionThe PTFE series folding filter elements,Website: , with natural hydrophobic PTFE filter membrane or imported PTFE filter membrane as their filter medium, receive 100% integrity testing before delivery to guarantee absolute sterilization and take the lead in obtaining American FDA Certification.Product featuresHigh flux and high particle retention rate;Wide application, good chemical compatibility, oxidation resistance, acid & alkali resistance and high temperature resistance;100% integrity testing before delivery;Manufacture in clean environment (Grade 100).Product applicationSterile exhaust and air intake filtration for fermentation cylinder, storage tank, dosing tank;High-purity gas filtration in electronic industry;High-purity steam filtration;Sterile delivery of compressed air;Sterilization and filtration of solvents; filtration of acetone.Material structureFilter membrane: imported and domestic PTFE filter membraneSupporting layer: imported PPInternal and external cartridge: PPFilter fineness (μm)0.10.220.45Integrity testingBubble point test (bar 25℃)0.1MPa(Ethyl alcohol)0.08MPa(Ethyl alcohol)0.05MPa(Ethyl alcohol)Diameter and length of filter elementΦ69mm,5", 10", 20", 30", 40"Effective filtration area≥0.65㎡(10")Operating conditionsMax. operating temperatureInternal and external PP cartridge+ stainless steel with lining joint <80℃  stainless steel internal cartridge + stainless steel with lining joint <95℃Sterilization◎On-line steam sterilization and autoclaving at 121℃ for half an hour each timeWithstand differential pressurePositive: 0.4MPa(25℃) Negative: 0.2MPa(25℃)Suitable pH1-14Biological safetyEndotoxin＜0.25EU/mlLeachables per 10 inch＜30mgType of connectionA(222)C(226)D (Flat)F(215)Type of sealS(silicon rubber)E (EPDM rubber)F (Fluororubber)FF(Fluorine coated)