Description of Air Sterilization Filtration
PTFE membrane filters providing the utmost assurance of chemical resistance, durability and critical filtration performance in aggressive fluids.
WECHANGE PTFE(polytetrafluoroethylene) membrane filters cartridge offer the highest level of assurance of chemical compatibility and filtration performance in aggressive chemicals, prolonged hot air service and other severe process conditions.
Our products delivers superior flow rates and long service life. The highly porous membrane is inherently hydrophobic and offers maximum chemical compatibility with minimal extractables in a wide range of fluids and applications. Support components are all-polypropylene.
Application of Air Sterilization Filtration
Features of Air Sterilization Filtration
Operating Characteristic of Air Sterilization Filtration
Outer Diameter | 2.7”/69mm |
Length | 5”/127mm 10”/254mm 20”/508mm 30”/762mm 40”/1016mm |
Pore Size | 0.1, 0.2, 0.45, 1.0, 3.0, 10μm |
Max. Operation Temperature | 80℃ |
Max. Operation Pressure | Forward direction: 0.5 MPa(25±2℃) 0.24MPa(80±2℃) *It not recommend for reverse use |
Filtration Areas | 5”≥0.34m²; 10”≥0.68m²; 20”≥1.36m² 30”≥2.04m²; 40”≥2.72m² |
Integrity Testing | Bubble Point≥60 KPa Under 50 KPa,Diffusion flow<15 ml/min 25℃, ethanol as the wetting solution |
Sterilization | 30 times (121.4℃,30 min offline high-pressure steam sterilization) |
Bacterial Retention Capacity | Minimum retention rate 107 CFU/cm2 The product was tested against Serratia marcescens (ATCC14756) using ASTM F838 method. |
Extractable Substance | <50 mg/m2 After high-pressure steam sterilization(121.4℃,60 min), 25℃±2℃ immersing in pure water for 24h |
Biosafety | The endotoxin level<0.25 EU/ml, and the extraction solution has no acute toxicity |
Cleanliness | No fibers or other visible foreign objects were detected in the filtered liquid. *Lamp test according to the Chinese Pharmacopoeia 2020 edition <0904> |
Flow Rate of Air Sterilization Filtration
Material of Structure of Air Sterilization Filtration
Filter Media | PTFE |
Deflector Layer | Polypropylene |
Enclosures/Ports | High Temperature Resistance Polypropylene |
Adapter | Polypropylene |
Seals | Silicone/EPDM |
Naming Regulations of Air Sterilization Filtration
WF | PL | F | 0045 | 05 | M | S |
Trademark | Form | Filtration Materials | Accuracy | length | Adapter | O ring |
WECHANFIB | PLEATED | PTFE | 0010 0.10μm | 5 5” | A 222/ FIN | S Silicone |
0022 0.22μm | 10 10” | B 222/Flat End Cap | E EPDM | |||
0045 0.45μm | 20 20” | C 226/ FIN | V FKM | |||
0100 1μm | 30 30” | D 226/ Flat End Cap | T PTFE | |||
0300 3μm | 40 40” | E DOE | ||||
1000 10μm |
Wechange Pleated Filter Cartridge Products List | ||||||
Membrane Material | Type No. | Application | Pore Size | Diameter | Length | Adaptor |
μm | mm | inch | ||||
PTFE | WF-PL-F-0005-5-* | Air Sterilization Filtration, Photoresist Filtration, Microelectronic Liquid Filtration, Semiconductor Process Gas Line Filtration, Crossive Solvent & Strong Oxidizing Liquid Impurity Filtration. | 0.05 | 69 | 5" | The "*" Indicate type of CONNECTOR and SEAL RING, they're customizable and have below option codes: (Fluororubber) |
PTFE | WF-PL-F-0005-10-* | 0.05 | 69 | 10" | ||
PTFE | WF-PL-F-0005-20-* | 0.05 | 69 | 20" | ||
PTFE | WF-PL-F-0005-30-* | 0.05 | 69 | 30" | ||
PTFE | WF-PL-F-0005-40-* | 0.05 | 69 | 40" | ||
PTFE | WF-PL-F-0010-5-* | 0.1 | 69 | 5" | ||
PTFE | WF-PL-F-0010-10-* | 0.1 | 69 | 10" | ||
PTFE | WF-PL-F-0010-20-* | 0.1 | 69 | 20" | ||
PTFE | WF-PL-F-0010-30-* | 0.1 | 69 | 30" | ||
PTFE | WF-PL-F-0010-40-* | 0.1 | 69 | 40" | ||
PTFE | WF-PL-F-0020-5-* | 0.2 | 69 | 5" | ||
PTFE | WF-PL-F-0020-10-* | 0.2 | 69 | 10" | ||
PTFE | WF-PL-F-0020-20-* | 0.2 | 69 | 20" | ||
PTFE | WF-PL-F-0020-30-* | 0.2 | 69 | 30" | ||
PTFE | WF-PL-F-0020-40-* | 0.2 | 69 | 40" | ||
PTFE | WF-PL-F-0045-5-* | 0.45 | 69 | 5" | ||
PTFE | WF-PL-F-0045-10-* | 0.45 | 69 | 10" | ||
PTFE | WF-PL-F-0045-20-* | 0.45 | 69 | 20" | ||
PTFE | WF-PL-F-0045-30-* | 0.45 | 69 | 30" | ||
PTFE | WF-PL-F-0045-40-* | 0.45 | 69 | 40" | ||
PTFE | WF-PL-F-0100-5-* | 1 | 69 | 5" | ||
PTFE | WF-PL-F-0100-10-* | 1 | 69 | 10" | ||
PTFE | WF-PL-F-0100-20-* | 1 | 69 | 20" | ||
PTFE | WF-PL-F-0100-30-* | 1 | 69 | 30" | ||
PTFE | WF-PL-F-0100-40-* | 1 | 69 | 40" | ||
PTFE | WF-PL-F-0300-5-* | 3 | 69 | 5" | ||
PTFE | WF-PL-F-0300-10-* | 3 | 69 | 10" | ||
PTFE | WF-PL-F-0300-20-* | 3 | 69 | 20" | ||
PTFE | WF-PL-F-0300-30-* | 3 | 69 | 30" | ||
PTFE | WF-PL-F-0300-40-* | 3 | 69 | 40" | ||
PTFE | WF-PL-F-1000-5-* | 10 | 69 | 5" | ||
PTFE | WF-PL-F-1000-10-* | 10 | 69 | 10" | ||
PTFE | WF-PL-F-1000-20-* | 10 | 69 | 20" | ||
PTFE | WF-PL-F-1000-30-* | 10 | 69 | 30" | ||
PTFE | WF-PL-F-1000-40-* | 10 | 69 | 40" |
The PTFE membrane filter cylinder for air sterilization and filtration is a specialized filter element designed for removing bacteria and other microorganisms from the air. It is typically made of polytetrafluoroethylene (PTFE) membrane, which possesses excellent filtration performance and chemical stability. It is usually installed in air filtration systems.
1.Aseptic air inlet and exhaust filtration for fermenters, storage tanks, batch tanks, etc.
2.Sterile filtration of aseptic packaging gases
3.Sterile filtration of compressed air and nitrogen.
4.Sterile filtration of corrosive gases
* The resistance to air flow when air passes through the filter cylinder is low, causing minimal impact on air circulation;
* It has good resistance to various chemicals, making it less susceptible to corrosion;
* It has good resistance to various chemicals, making it less susceptible to corrosion; (Note: The repetition of point 3 can be removed or clarified for better flow);
* It boasts a longer service life, reducing the frequency and cost of filter cylinder replacement;
* Strict quality control system, complete production process flow;
* Short delivery period;
* Flexible payment method: T/T, L/C, West Union, Paypal;
* Free technical support;
* Other specific sizes can be customized;
Dimensions(nominal):
OD | 69mm |
Length | 5"(127mm),10"(254mm),20"(508mm),30"(762mm) |
Material of Construction:
Filter Media | Deflector layer | port | Enclosures/Ports | Seals Material |
PTFE(Polytetrafluoroethylene | Polypropylene | Polypropylene | Polypropylene | Silastic/EPDM |
Beer Clarification Filter Cartridge Performance:
Max. Temperature | 80℃ |
Max.Differential Pressure | 0.42 MPa(25±2℃) 0.24 MPa(80±2℃) |
Effective filtration area | ≥0.65 m²/ 10 inch ≥2.04 m²/ 30 inch |
Integrity testing | Bubble point≥60Kpa 50KPa pressure,diffusion flow<10 ml/min Anhydrous ethanol was used as the wetting solution at 25°C, and compressed air was used to test the bubble point values against the diffusion flows. |
Steam Sterilization | 121℃/30min steam sterilization 120 times |
Bacterial retention capacity | Minimum retention rate 107 CFU/cm2 The product was tested against Serratia marcescens (ATCC14756) using ASTM F838 method. |
Extractable substance | <50 mg/m2 After autoclaving (123°C, 60 min), soak in purified water at 25°C ± 2°C for 24 hours. |
Biosafety | Endotoxin less than 0.25 EU/ml, extracts not acutely toxic |
Cleanness | No fiber or other visible foreign matter was detected in the filtrate. Lamp test according to the Chinese Pharmacopoeia 2020 edition <0904>. |