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As a professional manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory is proud to present our Spiral Welded Stainless Steel Filter Tube – a high-performance filtration solution engineered for both gas and liquid applications. With over two decades of expertise in wire mesh and filtration products, we have refined our manufacturing process to deliver filter tubes that offer exceptional strength, uniform filtration, and long service life. Our spiral welded construction ensures a continuous, smooth weld seam that minimizes pressure drop and maximizes flow efficiency, making it an ideal choice for demanding industrial environments.
This filter tube is crafted from premium stainless steel grades (304/316L) and features a wedge wire profile that provides precise slot openings. The spiral welding technique allows for a robust, rigid structure that can withstand high differential pressures and thermal cycling. Whether you need fine filtration for gas cleaning or coarse screening for liquid separation, our tube can be customized to meet your exact mesh size, diameter, length, and end connections. Key benefits include:
- High mechanical strength – continuous spiral weld ensures no weak points, suitable for backwashing and high-pressure applications.
- Uniform slot geometry – accurate control of slot width for consistent filtration efficiency.
- Excellent corrosion resistance – stainless steel material resists rust, chemicals, and high temperatures.
- Low maintenance – smooth surface reduces fouling and simplifies cleaning.
- Customizable dimensions – diameter from 20mm to 600mm, length up to 6000mm, and various end connections.
- Versatile applications – suitable for water treatment, oil & gas, petrochemical, food & beverage, mining, and more.
Technical Specifications:
| Material | SS304, SS316L, or other grades on request |
| Slot Opening | 0.1 mm – 10 mm (customizable) |
| Outer Diameter | 20 mm – 600 mm |
| Length | 100 mm – 6000 mm |
| End Connection | Threaded, flanged, grooved, plain (customizable) |
| Operating Temperature | -20°C to +400°C (depending on material) |
| Filtration Grade | 50 µm – 10 mm (micron or mesh) |
| Weld Type | Continuous spiral welding (TIG or MIG) |
Why Choose Our Spiral Welded Filter Tube? The spiral design offers a unique advantage over conventional wire mesh tubes: the continuous weld eliminates the need for longitudinal seams, reducing the risk of leakage and improving structural integrity. This design is particularly effective for backwashable filter systems, where the tube must withstand repeated cleaning cycles. The wedge wire profile also provides a self-cleaning effect, as particles are less likely to become trapped in the narrow slots. For gas filtration, the smooth internal surface minimizes turbulence and pressure drop, while for liquid filtration, the high open area ratio ensures maximum flow rate.
Our factory in Hengshui, Hebei, China, has been serving global markets for over 25 years. We export to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our annual export value exceeds US$5 million, reflecting the trust and satisfaction of our international customers. We ship from major ports: Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery. We are committed to quality control – every filter tube undergoes rigorous inspection for slot accuracy, weld integrity, and dimensional tolerance. Our team also supports custom designs, including special materials (e.g., duplex stainless steel), custom slot profiles, and unique end connections.
Trusted by industries worldwide – from water treatment plants to petrochemical refineries, our spiral welded filter tubes have proven their reliability. We provide technical support and after-sales service to ensure your filtration system operates at peak efficiency. Contact us today for a quote or to discuss your specific requirements. Let us help you achieve cleaner gas, clearer liquids, and lower operating costs.
Frequently Asked Questions
Q1: What is the difference between spiral welded and conventional welded filter tubes?
A: Spiral welded tubes have a continuous weld seam that runs helically, providing a stronger, more uniform structure with no longitudinal weak points. This design is ideal for high-pressure and backwashing applications.
Q2: Can you customize the slot size and dimensions?
A: Yes, we offer full customization – slot opening from 0.1mm to 10mm, diameter from 20mm to 600mm, and length up to 6000mm. End connections can be threaded, flanged, grooved, or plain.
Q3: What materials are available?
A: Standard materials are SS304 and SS316L. We also offer duplex stainless steel, hastelloy, and other alloys upon request.
Q4: Is this filter tube suitable for high-temperature applications?
A: Yes, depending on the material. SS316L can operate up to 400°C. For higher temperatures, please consult our technical team.
Q5: How do I clean the filter tube?
A: The tube is designed for backwashing, chemical cleaning, or ultrasonic cleaning. The smooth surface and wedge wire profile make it easy to remove accumulated solids.
Q6: What is the minimum order quantity (MOQ)?
A: MOQ is typically 10 pieces, but we can handle smaller orders for sample or prototype purposes. Please contact us for details.
Q7: Do you provide samples before bulk order?
A: Yes, samples are available. Sample cost can be deducted from the final order for large quantities.
Q8: What is the lead time for custom orders?
A: For standard sizes, lead time is 10-15 days. For custom specifications, 15-25 days depending on complexity. We also offer express shipping options.
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