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Help Center304 Stainless Steel Fiber Felt Filter Bag, 1 Micron Filtration, 500°C High Temperature Resistance
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Anping County Boli Hardware Wiremesh Products Factory (established since 1998) proudly presents our premium 304 Stainless Steel Fiber Felt Filter Bag – a high-performance solution engineered for demanding industrial filtration applications. With a precise filtration rating of 1 micron and exceptional temperature resistance up to 500°C, this filter bag combines durability, efficiency, and reliability. Our decades of manufacturing experience and annual export volume of US$5–10 million to markets worldwide ensure that you receive a product built to the highest standards.
This filter bag is crafted from 304 stainless steel fiber felt, a non-woven fabric made of fine stainless steel fibers that are sintered together to form a porous, rigid structure. The result is a robust filtration medium that can withstand harsh chemical environments, high temperatures, and mechanical stress. Whether you are filtering hot gases, corrosive liquids, or fine particulates, our 1-micron filter bag delivers consistent performance and long service life.
Key Features & Technical Specifications
- Material: 100% 304 stainless steel – excellent corrosion resistance and oxidation resistance.
- Filtration Precision: 1 micron – captures sub-micron particles with high efficiency.
- Temperature Range: Up to 500°C (932°F) – suitable for hot gas filtration, flue gas, and high-temperature processes.
- Structure: Fiber felt (sintered) – provides high porosity, low pressure drop, and good permeability.
- Mechanical Strength: High tensile strength and tear resistance, suitable for pulse-jet cleaning.
- Customizability: Available in various sizes, thicknesses, and bag shapes (round, flat, pleated, etc.) on request.
- Applications: Chemical industry, metallurgy, cement, power generation, waste incineration, food processing, and more.
| Parameter | Standard Value | Custom Options |
|---|---|---|
| Filtration Grade | 1 micron | 0.5 – 100 microns available |
| Max Operating Temperature | 500°C (continuous) | Up to 600°C (short-term) |
| Thickness | 1.0 mm (typical) | 0.5 – 2.0 mm |
| Fiber Diameter | 8 – 30 μm | Customizable |
| Air Permeability | 200 – 800 L/m²·s (at 200 Pa) | Adjustable |
| Tensile Strength (MD) | ≥ 300 N/50mm | Enhanced upon request |
The unique fiber felt structure offers superior depth filtration, enabling high dirt holding capacity and long intervals between cleaning cycles. Compared to woven wire mesh, our sintered fiber felt provides a more uniform pore distribution and higher filtration efficiency. The 304 stainless steel material ensures excellent resistance to oxidation, acidic and alkaline media, making it ideal for harsh environments.
Benefits for Your Business
- Reduced Downtime: Robust construction and easy cleaning (pulse-jet, backwash) extend filter life.
- Energy Savings: Low pressure drop minimizes fan energy consumption.
- Compliance: Achieve strict emission standards with 1-micron filtration.
- Versatility: Suitable for both gas and liquid filtration, from high-temperature flue gas to chemical solvents.
- Cost-Effective: Reusable and durable – reduces replacement frequency and waste.
Trust Anping County Boli Hardware Wiremesh Products Factory – a manufacturer with over 25 years of expertise in wire mesh and filtration products. Our factory is located in Hengshui, Hebei, China, the renowned wire mesh production base. We ship from major ports like Tianjin, Qingdao, Shanghai, and Foshan, serving customers in North America, South America, Europe, Southeast Asia, Africa, Oceania, and beyond. With annual export value exceeding US$5 million, we have a proven track record of delivering quality and reliability.
We understand that every filtration application is unique. That's why we offer custom sizes, shapes, and additional treatments (such as calendering, reinforcement, or special edge sealing) to meet your exact requirements. Our experienced engineering team works closely with you to provide tailored solutions.
Contact us today to discuss your specific needs and request a quote. Whether you need a small trial order or a large-volume shipment, we are ready to support your business with high-quality 304 Stainless Steel Fiber Felt Filter Bags that perform under the toughest conditions.
Frequently Asked Questions
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Q: What is the maximum operating temperature for this filter bag?
A: The filter bag can withstand continuous operation at 500°C (932°F). Short-term exposure up to 600°C is possible, but we recommend consulting our engineers for your specific conditions. -
Q: Can I use this filter bag for liquid filtration?
A: Yes, the 304 stainless steel fiber felt is suitable for both gas and liquid filtration. However, please note that certain corrosive liquids may require different grades; we can advise accordingly. -
Q: How do I clean the filter bag?
A: Common cleaning methods include pulse-jet backwashing, reverse air flow, or ultrasonic cleaning (for liquid applications). The sintered structure is durable enough to withstand repeated cleaning cycles. -
Q: What sizes are available?
A: We offer standard sizes such as 150mm x 600mm, 160mm x 600mm, etc., but custom dimensions are available upon request. Please provide your bag dimensions and we will produce accordingly. -
Q: Is the filter bag resistant to acids and alkalis?
A: 304 stainless steel offers good resistance to many organic acids, mild alkalis, and oxidizing environments. For highly corrosive media (e.g., strong hydrochloric acid), we recommend upgrading to 316L or Hastelloy. -
Q: What is the filtration efficiency (beta ratio) for 1 micron particles?
A: Typically, our filter bag achieves a filtration efficiency of 99% or higher for particles ≥1 micron, depending on the thickness and operating conditions. We can provide test data upon request. -
Q: Can you provide samples for testing?
A: Yes, we offer small sample sheets or sample bags for evaluation. Please contact our sales team to arrange a sample order. -
Q: What is the lead time for bulk orders?
A: Standard lead time is 15–25 working days, depending on quantity and customization. For urgent orders, express production can be arranged.
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