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Description of Pharmaceutical Water Prefiltration
WECHANFIB PO/EVOH membrane filter cartridge adopts EVOH nanofiber membrane, which is high flux, high uniformity, high compatibility and high hydrophilicity. It is widely used in removal of particles in chemical solution; removal of particles in deionized water; removal of bacteria and particles in gases and liquids of food and beverage, microelectronic and bio- pharmaceutical industries.
Application of Pharmaceutical Water Prefiltration
Features of Pharmaceutical Water Prefiltration
Operating Characteristic of Pharmaceutical Water Prefiltration
| Outer Diameter | 2.7”/69mm |
| Length | 5”/127mm 10”/254mm 20”/508mm 30”/762mm 40”/1016mm |
| Pore Size | 0.1, 0.2, 0.45, 0.7, 1.0μm |
| 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≥60KPa 50KPa pressure,diffusion flow＜10ml/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. |
| 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 Pharmaceutical Water Prefiltration
Material of Structure of Pharmaceutical Water Prefiltration
| Filter Media | EVOH(Ethylene vinyl alcohol copolymer) |
| Deflector Layer | Polypropylene |
| Enclosures/Ports | High Temperature Resistance Polypropylene |
| Adapter | Polypropylene |
| Seals | Silicone/EPDM |
Naming Regulations of Pharmaceutical Water Prefiltration
| WF | PL | 0500 | 10 | A | S | |
| Trademark | Form | Filtration Materials | Accuracy | length | Adapter | O ring |
| WECHANFIB | PLEATED | Blank EVOH | 0010 0.10μm | 5 5” | A 222/ FIN | S Silastic |
| 0022 0.22μm | 10 10” | B 222/Flat End Cap | E EPDM | |||
| 0045 0.45μm | 20 20” | C 226/ FIN | V FKM | |||
| 0070 0.7μm | 30 30” | D 226/ Flat End Cap | T PTFE | |||
| 0100 1.0μm | 40 40” | E DOE |
| Wechange Pleated Filter Cartridge Products List | ||||||
| Membrane Material | Type No. | Application | Pore Size | Diameter | Length | Adaptor |
| μm | mm | inch | ||||
| EVOH | WF-PL-0010-5-* | Beverage Final Filtration, Liquid Sterile Filtration, Microelectronic Liquid Filtration; CMP Polishing Liquid Filtration; Pharmaceutical Sterile Filtration; Buffer & Culture Medium Filtration; | 0.1 | 69 | 5" | The "*" Indicate type of CONNECTOR and SEAL RING, they're customizable & have below option codes: 1,Connector: A 222/Fin B 222/End Cap C 226/Fin D 226/End Cap E DOE
2,Sealing Ring: S Silicone E EDPM(Ethylene Propylene Diene Monomer) V FKM(Fluororubber) T PTFE(Polytetra- fluoroethylene) |
| EVOH | WF-PL-0010-10-* | 0.1 | 69 | 10" | ||
| EVOH | WF-PL-0010-20-* | 0.1 | 69 | 20" | ||
| EVOH | WF-PL-0010-30-* | 0.1 | 69 | 30" | ||
| EVOH | WF-PL-0010-40-* | 0.1 | 69 | 40" | ||
| EVOH | WF-PL-0022-5-* | 0.22 | 69 | 5" | ||
| EVOH | WF-PL-0022-10-* | 0.22 | 69 | 10" | ||
| EVOH | WF-PL-0022-20-* | 0.22 | 69 | 20" | ||
| EVOH | WF-PL-0022-30-* | 0.22 | 69 | 30" | ||
| EVOH | WF-PL-0022-40-* | 0.22 | 69 | 40" | ||
| EVOH | WF-PL-0045-5-* | 0.45 | 69 | 5" | ||
| EVOH | WF-PL-0045-10-* | 0.45 | 69 | 10" | ||
| EVOH | WF-PL-0045-20-* | 0.45 | 69 | 20" | ||
| EVOH | WF-PL-0045-30-* | 0.45 | 69 | 30" | ||
| EVOH | WF-PL-0045-40-* | 0.45 | 69 | 40" | ||
| EVOH | WF-PL-0070-5-* | 0.7 | 69 | 5" | ||
| EVOH | WF-PL-0070-10-* | 0.7 | 69 | 10" | ||
| EVOH | WF-PL-0070-20-* | 0.7 | 69 | 20" | ||
| EVOH | WF-PL-0070-30-* | 0.7 | 69 | 30" | ||
| EVOH | WF-PL-0070-40-* | 0.7 | 69 | 40" | ||
| EVOH | WF-PL-0100-5-* | 0.1 | 69 | 5" | ||
| EVOH | WF-PL-0100-10-* | 1 | 69 | 10" | ||
| EVOH | WF-PL-0100-20-* | 1 | 69 | 20" | ||
| EVOH | WF-PL-0100-30-* | 1 | 69 | 30" | ||
| EVOH | WF-PL-0100-40-* | 1 | 69 | 40" | ||
EVOH nanofiber membrane filter is a high-performance filtration component. This filter is primarily made from EVOH (ethylene-vinyl alcohol copolymer) nanofibers. EVOH is a polymer with excellent barrier properties, effectively blocking both oily and aqueous molecules.
1.Syrup sterile filtration
2.Wine sterile filtration
3.Draft beer terminal filtration
* EVOH nanofiber membranes have an extremely high porosity, enabling them to maintain a high flow rate and minimize pressure drop while ensuring high filtration efficiency;
* They can withstand high working pressures, making them suitable for filtration requirements in various industrial and medical applications;
* The nanofiber membrane possesses certain antibacterial properties, inhibiting bacterial growth and reducing the risk of cross-contamination;
* 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 | 10"(254mm),20"(508mm),30"(762mm),40"(1016mm) |
Material of Construction:
| Filter Media | Deflector layer | port | Enclosures/Ports | Seals Material |
| EVOH(Ethylene vinyl alcohol copolymer) | Polypropylene | Polypropylene | High temperature resistant polypropylene | Silastic/EPDM |
Beer Clarification Filter Cartridge Performance:
| Maximum operation temperature | 80℃ |
| Maximum operation pressure | Forward direction :0.5 MPa(25±2℃) 0.24MPa(80±2℃) It not recommend for reverse use |
| Filtration areas | ≥0.68 m²/ 10 inch ≥2.04 m²/ 30 inch |
| Integrity test | Bubble Point≥70 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) |
| Bacteria interception | Minimum interception: 107 CFU/cm2 According to standard ASTM F838, Serratia marcescens (ATCC14756) |
| 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 |