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Help CenterFilter Cloth Bags for Disc Vacuum Filters for Chemical Filtration, PVDF Coated, 0.5 Micron, Anti-Corrosion
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Founded in 1998, Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer in the filtration industry for over two decades. With an annual export value of US$5 Million – US$10 Million and serving markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania, we are proud to present our PVDF Coated Filter Cloth Bags designed specifically for Disc Vacuum Filters in chemical filtration applications. Our bags are engineered to deliver superior anti-corrosion performance, precise 0.5 micron filtration, and long service life even in the most aggressive chemical environments.
These filter cloth bags are manufactured using high-quality polyester substrate and coated with a PVDF (Polyvinylidene Fluoride) layer, which provides excellent resistance to acids, alkalis, and organic solvents. The 0.5 micron filtration rating ensures that fine particles are captured effectively, making them ideal for dewatering, sludge treatment, and chemical recovery processes. Each bag is custom-cut and sealed to fit various disc vacuum filter models, ensuring a perfect seal and maximum filtration efficiency.
Key Features & Technical Specifications
- PVDF Coating: Provides outstanding chemical resistance against strong acids, alkalis, and solvents, extending bag life in harsh chemical filtration.
- 0.5 Micron Filtration Precision: Captures sub-micron particles, ensuring high clarity of filtrate and efficient solid-liquid separation.
- Anti-Corrosion Design: The PVDF layer prevents degradation from corrosive chemicals, reducing replacement frequency.
- High Temperature Tolerance: Operates reliably up to 130°C (continuous), suitable for hot chemical processes.
- Customizable Dimensions: Available in any size to match your disc vacuum filter sectors; heat-sealed edges prevent fraying and leakage.
- Seam Options: Choose between heat-sealed seams or stitched with PTFE thread for additional strength.
- Excellent Tensile Strength: Warp ≥ 800 N/5cm, weft ≥ 600 N/5cm, capable of withstanding high pressure differentials.
| Parameter | Value | Notes |
|---|---|---|
| Base Fabric | Polyester (PET) | High strength, good dimensional stability |
| Coating | PVDF (Polyvinylidene Fluoride) | Excellent chemical resistance |
| Filtration Rating | 0.5 micron | Nominal, based on standardized test |
| Working Temperature | Up to 130°C (continuous) | Peak 150°C for short duration |
| Chemical Resistance | Excellent against acids, alkalis, solvents | Tested under pH 1-14 |
| Tensile Strength (Warp) | ≥ 800 N/5cm | ASTM D5034 |
| Tensile Strength (Weft) | ≥ 600 N/5cm | ASTM D5034 |
| Seam Type | Heat-sealed / PTFE stitched | Optional, based on application |
Benefits for Your Chemical Filtration Process
- Enhanced Filtration Efficiency: The 0.5 micron rating reduces cake moisture and improves product recovery, lowering operational costs.
- Extended Service Life: PVDF coating resists chemical attack and abrasion, meaning fewer bag replacements and less downtime.
- Consistent Performance: Our bags maintain stable filtration pressure and flow rate over long periods, even under fluctuating chemical conditions.
- Easy Installation: Custom-cut to your disc sector dimensions with precise heat-sealed edges, ensuring a snug fit and eliminating bypass leakage.
- Versatile Compatibility: Suitable for most disc vacuum filter brands (e.g., Eimco, Peterson, Andritz) – just provide your sector dimensions.
Our factory in Hengshui, Hebei, China, employs advanced weaving and coating technology to produce filter cloth bags that meet the rigorous demands of the chemical industry. With over 20 years of manufacturing experience and a strong export network, we have supplied thousands of bags to satisfied clients worldwide. We understand that every filtration application is unique, so we offer customization options including bag length, diameter, seam type, and even edge reinforcement to match your specific requirements.
Trusted by Global Clients
Anping County Boli Hardware Wiremesh Products Factory has been a reliable partner for clients in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe. Our annual export value of US$5 Million – US$10 Million reflects the trust and repeat business we have earned. We ship from major Chinese ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery to any destination.
We are committed to quality control – every batch of filter cloth bags undergoes strict inspection including filtration accuracy testing, tensile strength measurement, and dimensional verification. Our team also provides technical support to help you select the right bag for your process. Whether you need a small trial order or a bulk supply, we are ready to serve you.
Contact us today to discuss your disc vacuum filter requirements. Let us help you optimize your chemical filtration with our high-performance PVDF coated filter cloth bags.
Frequently Asked Questions
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Q: What is the maximum operating temperature for these bags?
A: The PVDF coated filter cloth bags can continuously operate at temperatures up to 130°C (266°F). Short-term peaks up to 150°C are acceptable, but we recommend verifying with our technical team for your specific application. -
Q: Can these bags be used for solvents like acetone or toluene?
A: PVDF has excellent resistance to many organic solvents, including acetone, toluene, and alcohols. However, we advise testing under actual conditions or consulting our technical support to confirm compatibility with your specific solvent concentration and temperature. -
Q: How do I measure my disc sector to get the correct bag size?
A: Please provide the outer diameter, inner diameter (if any), and the height/length of the sector. Also indicate the shape (e.g., trapezoidal, rectangular) and the location of the clamping groove. Our engineers can guide you through the measurement process. -
Q: What is the typical lifespan of these bags in a chemical environment?
A: Lifespan depends on chemical aggressiveness, temperature, and mechanical stress. In moderate chemical conditions (e.g., pH 2-12, ≤80°C), the bags can last 6-12 months. For severe conditions, we recommend periodic inspection; replacement intervals may be shorter. -
Q: Do you offer samples for testing?
A: Yes, we provide small sample pieces (e.g., 30cm x 30cm) free of charge, with the customer covering shipping cost. For a full-size sample bag, we can produce a trial order at a reasonable price. -
Q: Are these bags suitable for food-grade applications?
A: The base polyester and PVDF coating are generally considered safe for incidental food contact, but we do not have specific food-grade certification. If you require compliance with FDA or EU regulations, please contact us to discuss possible modifications. -
Q: What is the difference between heat-sealed and stitched seams?
A: Heat-sealed seams create a smooth, non-porous bond that is resistant to chemical wicking and particle bypass. Stitched seams with PTFE thread offer higher mechanical strength but may have tiny needle holes. We recommend heat-sealed for most chemical filtration applications. -
Q: Can you customize the bag with a gasket or O-ring?
A: Yes, we can integrate a rubber gasket, silicone seal, or enclosed O-ring at the bag opening to improve sealing against the filter sector. Please specify your requirements when ordering.
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