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Help CenterRound Hole Perforated Stainless Steel Spiral Welded Filter Tube for Filtration Systems
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer since 1998, specializing in high-quality filtration components. Our Round Hole Perforated Stainless Steel Spiral Welded Filter Tube is engineered for demanding filtration systems, offering superior strength, precise filtration, and long service life. With over two decades of experience and an annual export value of US$5 million to US$10 million, we supply this product to global markets including North America, Europe, Asia, and beyond. This tube is the ideal choice for industries requiring reliable solid-liquid separation, from water treatment to chemical processing.
Product Overview
Our spiral welded filter tube is manufactured from high-grade stainless steel sheets, perforated with uniform round holes, and then spirally welded into a durable cylindrical structure. The combination of precision perforation and robust welding ensures consistent flow distribution, high mechanical strength, and resistance to corrosion and pressure. Each tube is fully customizable in diameter, length, wall thickness, and hole pattern to meet your specific filtration requirements.
Key Features & Technical Specifications
- Material: Premium stainless steel (SUS304, SUS316, SUS316L) – excellent corrosion resistance for harsh environments.
- Hole Pattern: Round holes arranged in staggered or straight rows, customizable hole diameter from 0.5mm to 20mm.
- Welding Technology: Automatic spiral welding ensures uniform seam, high strength, and leak-proof performance.
- Open Area: Adjustable from 10% to 60% to balance flow rate and filtration precision.
- Dimensions: Outer diameter from 25mm to 500mm, length up to 6000mm (or more upon request), wall thickness 1.0mm to 10.0mm.
- Surface Finish: Annealed, pickled, or electropolished – removes weld oxides and improves cleanliness.
- End Connections: Threaded, flanged, or plain ends to fit existing piping systems.
- Customization: Available in special alloys, different hole shapes, and non-standard sizes.
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Outside Diameter | 50mm – 300mm | 25mm – 500mm |
| Length | 500mm – 3000mm | 100mm – 6000mm |
| Wall Thickness | 1.5mm – 5.0mm | 1.0mm – 10.0mm |
| Hole Diameter | 1.0mm – 10mm | 0.5mm – 20mm |
| Open Area | 20% – 40% | 10% – 60% |
Advantages & Benefits
- High Filtration Efficiency: Uniform round holes provide consistent particle retention, reducing clogging and extending service cycles.
- Exceptional Durability: Spiral welded construction eliminates weak points, allowing the tube to withstand high pressure, thermal stress, and mechanical vibration.
- Corrosion Resistance: Stainless steel grades (304, 316, 316L) ensure long-term performance in acidic, alkaline, or saline environments.
- Easy Maintenance: Smooth surface and uniform openings facilitate backwashing and cleaning, lowering downtime.
- Customizable Design: Tailor-made dimensions, hole patterns, and end connections to fit your exact system requirements.
- Cost-Effective: Precision manufacturing reduces material waste, and the long lifespan minimizes replacement costs.
Applications
- Water & Wastewater Treatment: Sand filter underdrains, demineralizer internals, and screen filters.
- Oil & Gas Industry: Crude oil filtration, injection water strainers, and produced water treatment.
- Chemical Processing: Catalyst recovery, polymer filtration, and acid/alkali liquid filtration.
- Food & Beverage: Juice clarification, beer filtration, and edible oil processing.
- Pharmaceuticals: Sterile filtration, granule separation, and liquid purification.
- Mining & Minerals: Dewatering screens, slurry filtration, and ore processing.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With a history of excellence since 1998, we have served clients across North America, South America, Europe, Asia, Africa, and Oceania. Our annual export value of US$5 million to US$10 million reflects the trust and satisfaction of global buyers. We ship from Tianjin, Qingdao, Shanghai, and Foshan ports, ensuring timely delivery. Every filter tube is produced with strict quality control – from raw material inspection to final dimensional check. Our professional team offers technical support, sample testing, and customized solutions. When you choose our Round Hole Perforated Stainless Steel Spiral Welded Filter Tube, you invest in reliability, performance, and a long-lasting partnership.
Frequently Asked Questions
Q1: What stainless steel grades are available for the filter tube?
We offer SUS304, SUS316, and SUS316L as standard. Other grades like duplex stainless steel are available upon request, depending on your application's corrosion and temperature requirements.
Q2: Can I get a sample before placing a bulk order?
Yes, we provide samples for evaluation. Sample cost and shipping can be arranged. Please contact us with your specific dimensions and hole pattern, and we will quote accordingly.
Q3: How do you ensure the round holes are uniform and the welding is leak-free?
We use CNC punching machines for precise hole placement and automatic spiral welding equipment with real-time monitoring. Each tube undergoes a hydraulic pressure test and visual inspection before shipment.
Q4: What is the maximum length you can produce?
Our standard maximum length is 6000mm. For longer lengths, we can join multiple sections using flanges or welding, or produce custom lengths up to 12 meters upon request.
Q5: Can the filter tube be used for both liquid and gas filtration?
Yes, the tube is suitable for both liquid and gas filtration applications. The round hole design and stainless steel construction provide effective separation for a wide range of fluids and gases.
Q6: How do I choose the right hole size and open area for my application?
We recommend specifying your desired filtration micron rating (e.g., 100 microns, 500 microns) and flow rate. Our engineering team can help you select the optimal hole diameter and open area to balance filtration efficiency and pressure drop.
Q7: What packaging and shipping options do you offer?
Each tube is individually wrapped with protective material, then packed in wooden crates or pallets. We ship via sea, air, or express from Tianjin, Qingdao, Shanghai, or Foshan ports. We can also arrange door-to-door delivery if needed.
Q8: Do you offer after-sales technical support?
Absolutely. Our team provides ongoing technical support, including installation guidance, troubleshooting, and replacement parts. We are committed to ensuring your filtration system operates optimally.
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