Wuhan Wechange Technology Co., Ltd
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Description of Microelectronics 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 Microelectronics Air Sterilization Filtration
Features of Microelectronics Air Sterilization Filtration
Operating Characteristic of Microelectronics 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 Microelectronics Air Sterilization Filtration
Material of Structure of Microelectronics Air Sterilization Filtration
| Filter Media | PTFE |
| Deflector Layer | Polypropylene |
| Enclosures/Ports | High Temperature Resistance Polypropylene |
| Adapter | Polypropylene |
| Seals | Silicone/EPDM |
Naming Regulations of Microelectronics 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 WECHANFIB Microelectronics air sterilization filter core with PTFE membrane efficiently removes particles from gases, while the corrosion-resistant material allows for application in various special gas filtration. The integrated structure is easy to replace and operate.
1.Semiconductor process gas line filtration
2.Used for microelectronics air sterilization filtration
* Ultra-large filtration area;
* The natural hydrophobicity of the PTFE filter membrane provides an ultra-high filtration flux and ultra-low initial pressure drop during gas filtration;
* PTFE filter membrane ensures high interception efficiency to meet higher requirements;
* 100% integrity test on the filter cores before shipment;
* 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:
| Maximum operation temperature | 80℃ |
| Maximum operation pressure | Forward direction :0.70 MPa(21±2℃) Reverse:0.34MPa(21±2℃) |
| Filtration areas | ≥0.68 m²/ 10 inch ≥2.04 m²/ 30 inch |
| Integrity test | Bubble Point≥60 KPa Under 50 KPa,Diffusion flow＜10 ml/min 25℃, ethanol as the wetting solution |
| Sterilization | 30 times(123℃,30 min offline high-pressure steam sterilization) |