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Help CenterPharmaceutical Sterile Filtration: 0.2 Micron, 20 Inch PTFE Membrane Coated Fiber Filter Cartridge
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As a manufacturer with over 25 years of experience (since 1998), Anping County Boli Hardware Wiremesh Products Factory proudly presents our Pharmaceutical Sterile Filtration: 0.2 Micron, 20 Inch PTFE Membrane Coated Fiber Filter Cartridge. This high-performance filter is engineered to meet the most stringent requirements of pharmaceutical, biotech, and sterile processing industries. Combining advanced PTFE membrane coating technology with robust fiber support, our cartridge delivers absolute microbial retention, high flow rates, and exceptional chemical resistance — all critical for critical filtration applications.
Our PTFE membrane coated fiber filter cartridge is designed for both liquid and gas sterile filtration. The 0.2 micron absolute rating ensures complete removal of bacteria, particulates, and microorganisms, making it ideal for final sterilization of injectables, vaccines, buffers, and water for injection (WFI). The 20-inch standard length fits most industry housings, and the cartridge is available with various end cap configurations (DOE, 222/O-ring, 226/O-ring) for seamless integration into your existing system.
Key Features & Benefits
- 0.2 Micron Absolute Filtration — Guarantees sterile output by removing >99.9999% of bacteria and particles, meeting USP <797> and EU GMP standards.
- PTFE Membrane Coating — Provides low protein binding, high chemical compatibility (pH 1–14), and resistance to aggressive solvents, strong acids, and bases.
- High Flow Rate & Low Pressure Drop — Optimized pleat design and fiber support maximize surface area, reducing energy consumption and extending service life.
- Thermal & Autoclave Stability — Withstands repeated steam sterilization (autoclaving) at 134°C (273°F) without compromising integrity, ideal for in-situ sterilization.
- Low Extractables & Non-Fiber Releasing — Pre-wetted and thoroughly rinsed to meet the low extractable requirements of pharmaceutical applications.
- Integrity Testable — Supports bubble point, forward flow, and pressure hold tests for easy validation and routine quality control.
- Customizable Length & End Caps — Available in 10, 20, 30, 40 inch and various adapters to fit any housing.
Technical Specifications
| Parameter | Value |
| Filtration Grade | 0.2 μm absolute |
| Filtration Area (per 20") | ≥0.65 m² (7.0 ft²) |
| Maximum Operating Temperature | 80°C (176°F) continuous; 134°C (273°F) for 30 min (steam) |
| Maximum Differential Pressure | 5.0 bar (72.5 psi) @ 25°C |
| Bubble Point (water) | ≥3.5 bar (51 psi) – indicative of 0.2 μm integrity |
| Flow Rate (water, 1 bar ΔP) | Approx. 0.8 L/min per 10" element |
| Housing Compatibility | Standard 20" sanitary housings (2-222, 2-226, DOE) |
| Extractables | compliant) |
Our PTFE membrane coated fiber filter cartridge is manufactured in a cleanroom environment and individually tested for integrity before shipment. Each cartridge is double-bagged with a certificate of conformance, ensuring traceability and quality assurance from our factory to your facility.
Why Choose Boli for Your Sterile Filtration Needs?
With an annual export value of US$5–10 million and a global footprint spanning North America, South America, Europe, Asia, Africa, Oceania, and the Middle East, Anping County Boli Hardware Wiremesh Products Factory has been a trusted partner for pharmaceutical and biotech companies since 1998. Our deep expertise in precision filtration manufacturing, combined with strict quality control and competitive pricing, makes us a reliable supplier for both OEM and custom filter solutions.
We ship from major Chinese ports (Tianjin, Qingdao, Shanghai, Foshan) and offer flexible lead times to meet your production schedules. Our technical team is available to assist with filter selection, validation support, and process optimization. Contact us today to request a sample, quotation, or integrity test data — we are committed to delivering the sterile filtration performance your critical applications demand.
Frequently Asked Questions
Q1: What is the absolute filtration rating of this cartridge?
A1: The cartridge features an absolute 0.2 micron rating, meaning it will retain all particles larger than 0.2 μm, including bacteria such as Brevundimonas diminuta (ATCC 19146) used for validation.
Q2: Can this filter be used for both liquid and gas sterilization?
A2: Yes. The PTFE membrane is hydrophobic, making it ideal for venting and gas filtration; for liquid applications, it can be pre-wetted with alcohol or formulated for hydrophilic use upon request.
Q3: How do I validate the integrity of the filter after installation?
A3: The cartridge supports common integrity tests: bubble point, forward flow, and pressure hold. We provide integrity test values and guidelines in the product manual. Our filters are 100% integrity tested before shipment.
Q4: What is the recommended replacement interval?
A4: Replacement depends on the feed quality and operating conditions. Typically, a 20-inch cartridge can last 1–3 months in typical pharmaceutical water systems. We recommend periodic differential pressure monitoring and integrity testing to determine the optimal replacement schedule.
Q5: Is the cartridge compatible with steam sterilization (autoclaving)?
A5: Yes. The PTFE membrane and fiber support can withstand repeated autoclave cycles at 134°C (273°F) for 30 minutes without loss of integrity. However, please consult our technical team for specific cycle parameters to maximize filter life.
Q6: Do you offer custom lengths or end cap configurations?
A6: Absolutely. We can manufacture cartridges in 10, 20, 30, 40, and 50 inch lengths, with DOE, 222/O-ring, 226/O-ring, and other custom adapters. Minimum order quantities may apply for custom sizes.
Q7: What about extractables and leachables?
A7: Our cartridge exhibits very low extractable levels ( requirements. A full extractable profile and validation guide are available upon request.
Q8: Can I get a sample for testing before bulk purchase?
A8: Yes, we provide free samples for evaluation (please cover shipping costs). Contact our sales team to arrange a sample with integrity test data and documentation.
*Note: The above specifications are typical values. Final performance may vary based on application conditions. Please consult with our technical team for specific recommendations.
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