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Welcome to Anping County Boli Hardware Wiremesh Products Factory, a specialized manufacturer established in 1998 with over 20 years of experience in wire mesh and filtration solutions. Our Spiral Welded Stainless Steel Filter Tube is designed for demanding industrial filtration applications, offering superior mechanical strength, precise filtration accuracy, and long service life. Whether you need to separate solids from liquids, protect downstream equipment, or achieve consistent product quality, this filter tube delivers reliable performance.
Manufactured from high-quality 304 or 316L stainless steel, our spiral welded construction ensures uniform slot openings and excellent resistance to corrosion and high pressure. The tube is fully welded using advanced spiral technology, eliminating weak points and providing a seamless structure that can withstand backwashing and thermal shocks. Available in a wide range of diameters, lengths, and slot sizes, each tube is customizable to meet your specific system requirements.
Key Features & Technical Specifications
- Material Options: 304, 304L, 316, 316L stainless steel – choose based on your fluid corrosivity and temperature.
- Spiral Welded Design: Continuous welding along the spiral seam ensures high burst pressure and eliminates leakage.
- Precise Slot Opening: Available from 0.1 mm to 10 mm, manufactured with CNC-controlled laser or wedge wire technology for consistent filtration.
- High Open Area: Optimized slot geometry maximizes flow rate while maintaining structural integrity.
- Easy Cleaning: Smooth surface reduces fouling; chemical or backwash cleaning can be applied without damaging the filter.
- Temperature Resistance: Suitable for continuous operation up to 400°C (depending on material and pressure).
- Customizable Ends: Threaded, flanged, or plain ends for easy integration into existing pipe systems.
| Parameter | Standard Range | Notes |
|---|---|---|
| Outer Diameter | 25 mm – 500 mm | Custom sizes available |
| Length | 100 mm – 3000 mm | Single piece or multiple segments |
| Slot Width | 0.1 mm – 10 mm | Tolerance ±0.02 mm |
| Wall Thickness | 1.0 mm – 5.0 mm | Depends on diameter and pressure rating |
| Max Working Pressure | Up to 50 bar | Varies with tube dimensions |
Applications & Benefits
Our spiral welded filter tubes are widely used in:
- Water & Wastewater Treatment: Sand filtration, demineralization, and protection of membranes.
- Oil & Gas Industry: Crude oil filtration, gas well deliquification, and refinery processes.
- Chemical Processing: Catalyst recovery, slurry filtration, and acid/alkali solutions.
- Food & Beverage: Juice clarification, beer filtration, and sugar refining.
- Pharmaceutical & Biotechnology: Sterile filtration and particle removal.
The spiral welded structure offers several advantages over traditional perforated or mesh tubes: it provides higher strength-to-weight ratio, better resistance to deformation under backwashing, and more uniform flow distribution. Additionally, the stainless steel material ensures long-term durability even in harsh environments, reducing replacement frequency and downtime.
Trust & Reliability
As a factory with over 20 years of history, Anping County Boli Hardware Wiremesh Products Factory has exported US$5 million – US$10 million annually to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring fast and cost-effective logistics. Each filter tube undergoes strict quality control – from raw material inspection to dimensional verification and pressure testing – to guarantee consistent performance.
We understand that every industrial filtration system has unique requirements. That’s why we offer custom designs, including special slot profiles, end connections, and surface treatments. Our experienced engineering team can assist you in selecting the optimal configuration for your specific fluid characteristics and operating conditions.
Contact us today for a quote or technical consultation. Let us help you achieve maximum filtration efficiency with our spiral welded stainless steel filter tubes.
Frequently Asked Questions (FAQ)
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Q: What is the maximum temperature this filter tube can withstand?
A: Depending on the stainless steel grade, the tube can operate continuously at temperatures up to 400°C (752°F) for 304 and 316L. For higher temperatures, please consult our team for special alloys. -
Q: Can the tube be cleaned and reused?
A: Yes. The spiral welded design allows easy backwashing, chemical cleaning, or ultrasonic cleaning. The robust structure withstands repeated cleaning cycles without deformation. -
Q: What is the typical lead time for custom orders?
A: For standard sizes, lead time is 15–20 working days. Custom dimensions and special end connections may require 25–30 working days. We ship via Tianjin, Qingdao, Shanghai, or Foshan ports. -
Q: How do I choose the right slot size for my application?
A: Slot size depends on the particle size you need to remove. For example, 0.1 mm slots are suitable for fine filtration, while 1–2 mm slots are used for coarse screening. Our technical team can analyze your fluid sample and recommend the optimal slot. -
Q: Is the tube suitable for high-pressure applications?
A: Yes. The spiral welded construction provides high burst strength. Maximum working pressure can reach up to 50 bar, depending on diameter, wall thickness, and material grade. We can design tubes for even higher pressures upon request. -
Q: Do you provide samples for testing?
A: Yes, we offer sample tubes (custom length or small size) for evaluation. Please contact us with your requirements, and we will provide a quotation. -
Q: What surface treatments are available?
A: Standard treatment is pickling and passivation, which provides a clean, corrosion-resistant surface. Electropolishing is also available for improved smoothness and cleanability, especially in food and pharmaceutical applications. -
Q: Can I get a flanged or threaded connection?
A: Absolutely. We offer plain ends, threaded (NPT/BSP), flanged (ANSI/DIN), or custom connections. Please specify when ordering.
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