Description of Air Prefiltration
WECHANGE PP membrane filters are high efficiency depth type filters constructed entirely of chemically resistant polypropylene. They are economical, premium quality products that deliver consistently high filtration efficiency, superior flow rates, substantial dirt holding capacity, and exceptionally long service life. All-polypropylene construction makes it a cost-effective choice for clarification and prefiltration applications.
WECHANGE PP membrane filters are ideal for clarification, polishing, bioburden reduction and prefiltration applications. It is compatible with a wide range of chemicals and cleaning agents.
Application of Air Prefiltration
Features of Air Prefiltration
Operating Characteristic of Air Prefiltration
Outer Diameter | 2.7”/69mm |
Length | 10”/254mm 20”/508mm 30”/762mm 40”/1016mm 60”/1524mm |
Pore Size | 1, 3, 5, 7, 10μm |
Max. Operation Temperature | 80℃ |
Max. Operation Pressure | Forward direction: 0.58 MPa(25±2℃) 0.24MPa(80±2℃) *It not recommend for reverse use |
Food Contactability | All ingredients are compliant GB 4806.7-2016 |
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<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. |
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> |
Filtration direction | Outside-inside |
Flow Rate of Air Prefiltration
Material of Structure of Air Prefiltration
Filter Media | Polypropylene |
Deflector Layer | Polypropylene |
Enclosures/Ports | High Temperature Resistance Polypropylene |
Adapter | Polypropylene |
Seals | Silicone/EPDM |
Naming Regulations of Air Prefiltration
WF | PL | P | 0500 | 10 | A | S |
Trademark | Form | Filtration Materials | Accuracy | length | Adapter | O ring |
WECHANFIB | PLEATED | P PP | 0100 1um | 5 5” | A 222/ FIN | S Silicone |
0300 3um | 10 10” | B 222/Flat | E EPDM | |||
0500 5um | 20 20” | C 226/ FIN | V FKM | |||
0700 7um | 30 30” | D 226/ Flat | T PTFE | |||
1000 10um | 40 40” | E DOE |
Wechange Pleated Filter Cartridge Products List | ||||||
Membrane Material | Type No. | Application | Pore Size | Diameter | Length | Adaptor |
μm | mm | inch | ||||
PP | WF-PL-P-0100-05-* | Liquid Clarification, Liquid Filtration, Sewage Filtration, Security Filtration, Clarification Filtration, Beverage Pre Filtration, Microelectronic Liquid Pre Filtration, Photoresists Prefiltration, Organic Solvents Pre Filtration, Air Prefiltration. | 1 | 69 | 5" | The "*" Indicate type of CONNECTOR and SEAL RING, they're customizable and have below option codes: (Fluororubber) |
PP | WF-PL-P-0100-10-* | 1 | 69 | 10" | ||
PP | WF-PL-P-0100-20-* | 1 | 69 | 20" | ||
PP | WF-PL-P-0100-30-* | 1 | 69 | 30" | ||
PP | WF-PL-P-0100-40-* | 1 | 69 | 40" | ||
PP | WF-PL-P-0300-05-* | 3 | 69 | 5" | ||
PP | WF-PL-P-0300-10-* | 3 | 69 | 10" | ||
PP | WF-PL-P-0300-20-* | 3 | 69 | 20" | ||
PP | WF-PL-P-0300-30-* | 3 | 69 | 30" | ||
PP | WF-PL-P-0300-40-* | 3 | 69 | 40" | ||
PP | WF-PL-P-0500-05-* | 5 | 69 | 5" | ||
PP | WF-PL-P-0500-10-* | 5 | 69 | 10" | ||
PP | WF-PL-P-0500-20-* | 5 | 69 | 20" | ||
PP | WF-PL-P-0500-30-* | 5 | 69 | 30" | ||
PP | WF-PL-P-0500-40-* | 5 | 69 | 40" | ||
PP | WF-PL-P-0700-05-* | 7 | 69 | 5" | ||
PP | WF-PL-P-0700-10-* | 7 | 69 | 10" | ||
PP | WF-PL-P-0700-20-* | 7 | 69 | 20" | ||
PP | WF-PL-P-0700-30-* | 7 | 69 | 30" | ||
PP | WF-PL-P-0700-40-* | 7 | 69 | 40" | ||
PP | WF-PL-P-1000-05-* | 10 | 69 | 5" | ||
PP | WF-PL-P-1000-10-* | 10 | 69 | 10" | ||
PP | WF-PL-P-1000-20-* | 10 | 69 | 20" | ||
PP | WF-PL-P-1000-30-* | 10 | 69 | 30" | ||
PP | WF-PL-P-1000-40-* | 10 | 69 | 40" |
The filter core is designed with a distinctive pleated structure, which enhances the filtration area, resulting in higher filtration efficiency within the same volume. The PP pleated filter is an efficient, convenient, economical, and environmentally friendly filtration solution widely utilized in the pre-filtering of air. The compact size of the pleated filter makes it particularly suitable for environments with limited space, such as food and beverage production. This not only improves space utilization but also simplifies equipment layout.
1.Pharmaceutical field: pre-filtration of all kinds of injections, medicinal liquids and injection washing water, and all kinds of antimicrobials, traditional Chinese medicine injections.
2.Food industry: filtration of alcohol, beverage and drinking water.
3.Electronic industry: pre-filtration of pure water and ultra-pure water.
4.petroleum and chemical industry: filtration of all kinds of organic solvents, acids and alkalis, and filtration of oilfield injection water.
* The filter cores are easy to clean and regenerate, which means that in some cases, the service life of the filter cores can be extended. This feature ensures that the filter cores maintain efficient filtration performance throughout their usage cycle, while reducing dependence on new filter cores;
* A variety of installation methods and size options are provided, which can cater to the needs of different food and beverage production sites. This ensures consistent and efficient air filtration performance, meeting the specific requirements of different application environments;
* They possess good chemical stability and heat resistance, capable of effectively filtering dust, particles, and other pollutants from the air;
* 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) |
Material of Construction:
Filter Media | Deflector layer | port | Enclosures/Ports | Seals Material |
Polypropylene | Polypropylene | Polypropylene | Polypropylene | Silastic/EPDM |
Beer Clarification Filter Cartridge Performance:
Max. Temperature | 80℃ |
Max.Differential Pressure | 0.4 MPa(21℃) 0.24 MPa(80℃) |
Effective filtration area | ≥0.68 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 | 30(123℃/30 min off-lining autoclaving) |
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>. |