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Liquid Needle Felt Filter Bag, Free Technical Support, 100% Tightness Tested, Standard Compliant
Product Spotlights
100% tightness tested for leak-proof performance; standard compliant for universal compatibility; free technical support from experienced filtration experts; customizable micron, size, and material; high dirt-holding capacity for extended service life; reliable quality from a manufacturer with 25+ years of export experience.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Needle Felt Polyester / Polypropylene
Filtration Precision:
1-200 micron (customizable)
Operating Temperature:
Up to 150°C (depending on material)
Payment & Shipping
Payment Methods:
Port of Shipment:
tianjin shanghai qingdao
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Needle Felt Polyester / Polypropylene
Filtration Precision
1-200 micron (customizable)
Operating Temperature
Up to 150°C (depending on material)
Connection Type
Stainless steel collar / plastic ring / snap band
Color
White / gray / custom
Application
Liquid filtration in chemical, food, pharmaceutical, wastewater
Size
Standard sizes #1, #2, #3, #4 or custom
Tightness Test
100% tested before shipment
Packaging
Carton / pallet / customized
Customization
Available upon request
As a leading manufacturer from Anping County Boli Hardware Wiremesh Products Factory, established in 1998, we specialize in high-performance liquid filtration solutions. Our Liquid Needle Felt Filter Bag is engineered to deliver reliable and efficient filtration for a wide range of industrial liquids. With free technical support from our experienced team, 100% tightness tested guarantee, and full compliance with industry standards, this product ensures minimal downtime and maximum operational efficiency. We understand that every liquid filtration application is unique, so we offer customized sizes and micron ratings to meet your specific requirements.
Product Features & Technical Specifications
- High-Quality Needle Felt Media: Made from premium polyester or polypropylene fibers, providing excellent dirt-holding capacity and consistent filtration efficiency.
- 100% Tightness Tested: Each bag undergoes a rigorous pressure test to ensure leak-proof performance, preventing bypass and contamination.
- Standard Compliant: Manufactured in accordance with international filtration standards, guaranteeing compatibility with most filter housings.
- Wide Filtration Range: Available from 1 micron to 200 micron, suitable for coarse, fine, and ultra-fine liquid filtration.
- Strong Seam Construction: Double-stitched seams with reinforced corners reduce the risk of bursting under pressure.
- Easy Installation & Replacement: Designed with flexible collar options (stainless steel, plastic, or snap band) for quick and secure fitting.
- High Temperature Resistance: Depending on material, operates up to 150°C (302°F) without deformation.
- Chemical Compatibility: Resistant to acids, alkalis, and organic solvents; suitable for aggressive chemical filtration.
| Parameter | Standard Options |
|---|---|
| Material | Polyester (PE), Polypropylene (PP), Nylon, PTFE |
| Filtration Precision | 1, 5, 10, 25, 50, 100, 200 micron |
| Operating Temperature | PE: ≤130°C, PP: ≤90°C, PTFE: ≤260°C |
| Collar Type | Stainless steel ring, plastic snap ring, flange |
| Standard Sizes | #1 (7x32), #2 (7x16), #3 (4x9), #4 (4x14) inch |
| Tightness Test Pressure | 0.3 MPa (or as required) |
Key Benefits for Your Business
- Reduced Downtime: 100% tightness test ensures no leak failures, minimizing maintenance interruptions.
- Consistent Quality: Standard compliant manufacturing guarantees uniform filtration performance across batches.
- Cost Savings: High dirt-holding capacity extends service life, reducing replacement frequency and disposal costs.
- Versatile Applications: Ideal for water treatment, chemical processing, food & beverage, pharmaceuticals, paints, inks, and oil filtration.
- Expert Support: Free technical support from our in-house team helps you select the right micron rating, material, and collar for your specific process.
- Customizable Solutions: We offer custom sizes, special materials, and unique collar designs to fit non-standard housings.
Trust and Reliability
With over 25 years of manufacturing experience (since 1998) and an annual export value of US$5-10 million, Anping County Boli Hardware Wiremesh Products Factory is a trusted partner for global clients across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics.
We understand that filter bag failures can lead to costly downtime and product contamination. That's why every Liquid Needle Felt Filter Bag is 100% tightness tested before leaving our factory – a quality assurance step that many suppliers overlook. Combined with our standard-compliant manufacturing process, you can rely on consistent filtration performance batch after batch.
Our team of filtration experts is available for free technical support to help you optimize your filtration system. From selecting the correct micron rating to troubleshooting existing problems, we are committed to your success. Contact us today to discuss your specific filtration needs or request a sample for testing.
Frequently Asked Questions
- What is the difference between needle felt and woven filter bags? Needle felt bags have a 3D structure with higher porosity, providing better dirt-holding capacity and depth filtration. Woven bags are surface filtration and are more suitable for coarse particles.
- Can I use this bag for high-temperature liquids? Yes, depending on the material. Polyester can handle up to 130°C, polypropylene up to 90°C, and PTFE up to 260°C. Please specify your temperature requirement when ordering.
- How do I know the right micron rating for my application? Our free technical support can help you choose based on your particle size distribution and desired clarity. Common ranges: 1-5 micron for fine polishing, 10-25 micron for general filtration, 50-200 micron for coarse filtration.
- Are these bags compatible with standard filter housings? Yes, they are manufactured to standard sizes (#1, #2, #3, #4) and collar types to fit most commercial housings. Custom sizes are available upon request.
- What does “100% tightness tested” mean? Every bag undergoes a pneumatic pressure test (typically 0.3 MPa) to verify no leaks at the seams, collar, or fabric. This ensures zero bypass and reliable filtration.
- Do you offer samples for evaluation? Yes, we can provide samples for testing. Please contact us with your requirements and we will arrange shipment.
- What is the typical lead time? For standard sizes, lead time is 7-15 days after order confirmation. Custom orders may take 15-25 days depending on complexity.
- Do you provide technical support for installation? Absolutely. Our team offers free technical support via email, phone, or video call to assist with installation, troubleshooting, and optimization.
Send Inquiry to This Supplier
Mr. Geng Xiaozhong
Sales Manager
2Yrs
Hengshui, Hebei, China
2Yrs
Business Type
Manufacturer
Year Established
1998
Annual Export Value
US$5 Million - US$10 Million
Port of Shipment
Tianjin, Qingdao, qingdao, shanghai, foshan
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