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Help CenterPTFE Needle-Punched Filter Cloth Bag, 25 Micron, 260°C, Chemical Resistant for Liquid Filtration
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As a professional manufacturer with over 25 years of experience since 1998, Anping County Boli Hardware Wiremesh Products Factory proudly presents our PTFE Needle-Punched Filter Cloth Bag. Designed for demanding liquid filtration processes, this 25-micron filter bag withstands continuous temperatures up to 260°C and offers exceptional chemical resistance. Our factory combines advanced needle-punching technology with high-purity PTFE fibers to deliver a reliable, high-performance filtration solution that meets the rigorous standards of industries worldwide, from North America to Southeast Asia.
Key Product Features and Technical Specifications:
- High-Temperature Tolerance: Operates efficiently at up to 260°C, making it suitable for hot liquid filtration applications such as chemical processing, pharmaceutical intermediates, and oil refining.
- Fine Filtration Efficiency: The 25-micron pore size ensures effective removal of fine particles while maintaining good flow rates, reducing the need for frequent bag changes.
- Superior Chemical Resistance: PTFE material resists virtually all chemicals including strong acids, alkalis, and organic solvents, extending service life in aggressive environments.
- Needle-Punched Construction: The needle-punched felt structure provides high porosity and uniform filtration, with excellent cake release properties for easy cleaning.
- Non-Stick Surface: PTFE's low surface energy prevents particle adhesion, minimizing blinding and improving filtration consistency.
- Customizable Dimensions: Available in a variety of diameters and lengths to fit standard or custom filter housings, with options for cuffs, rings, or snap bands.
| Parameter | Value |
|---|---|
| Material | 100% PTFE (Polytetrafluoroethylene) |
| Filtration Precision | 25 microns (nominal) |
| Max Operating Temperature | 260°C continuous |
| Weight (g/m²) | 550 – 600 (standard, customizable) |
| Air Permeability | 150 – 200 L/dm²/min (at 200 Pa) |
| Burst Strength (Mullen) | > 300 psi |
Benefits for Your Application:
- Reduced downtime due to longer filter life in harsh chemical environments.
- Lower disposal costs as PTFE filters can be repeatedly cleaned and reused.
- Improved product quality through consistent particle removal.
- Compatibility with high-temperature processes that would degrade standard polypropylene or polyester bags.
At Anping County Boli Hardware Wiremesh Products Factory, we have been manufacturing filtration products for over two decades, exporting to more than 15 regions including North America, Europe, and Southeast Asia. Our annual export value of US$5–10 million reflects the trust our global clients place in our quality and delivery. Every PTFE filter bag undergoes strict quality control to ensure consistent pore size, uniform thickness, and reliable seam strength. We offer flexible customization options and fast shipping from major Chinese ports (Tianjin, Qingdao, Shanghai, Foshan). Contact us today to discuss your specific liquid filtration needs – our team is ready to provide samples, technical data, and competitive pricing.
Frequently Asked Questions (FAQ)
Q1: Can this filter bag be used for high-temperature acids like sulfuric acid?
Yes, PTFE is highly resistant to sulfuric acid, hydrochloric acid, and other strong acids even at elevated temperatures. Our bag is rated for continuous use at 260°C.
Q2: What is the typical lifespan of this filter bag in chemical filtration?
Lifespan depends on the specific chemical medium, temperature, and particle load. In typical aggressive chemical environments, PTFE bags can last 3–6 months with proper cleaning. Our customers often report 2–3 times longer life compared to polypropylene bags.
Q3: Can I get custom sizes for my filter housing?
Absolutely. We offer custom dimensions, including diameter, length, and cuff style (snap ring, grommet, sachet, etc.). Please provide your housing specifications.
Q4: Is this product washable and reusable?
Yes, PTFE's non-stick surface allows easy cleaning. The bag can be backwashed, chemically cleaned, or mechanically cleaned. However, avoid abrasive cleaning that may damage the felt structure.
Q5: What is the minimum order quantity (MOQ)?
Our MOQ is typically 50 pieces for standard sizes, but we can negotiate smaller quantities for trial orders. Contact our sales team for details.
Q6: Do you provide samples for testing?
Yes, we offer free samples (shipping cost may apply) for evaluation. Please share your filtration parameters so we can recommend the most suitable product.
Q7: How does the 25-micron rating compare to other precision levels?
25 microns is a fine filtration level suitable for capturing particles visible to the naked eye (like sand or fine powder). For sub-micron filtration, we can offer 10-micron or 5-micron PTFE bags upon request.
Q8: What certifications or quality standards do you follow?
We follow internal quality control procedures based on industry standards. Specific certifications are available upon request; please inquire with our sales team for details.
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