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Help Center316L Stainless Steel Helically Perforated Tube, 0.8mm Slit Width, 3mm Pitch, Industrial Use
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As a trusted manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory proudly presents our 316L Stainless Steel Helically Perforated Tube with a precise 0.8mm slit width and 3mm pitch, designed for demanding industrial applications. Leveraging over two decades of metal fabrication expertise and annual export values exceeding US$5 million, we deliver robust, corrosion-resistant tubes that excel in filtration, separation, and fluid distribution systems. Our helically perforated structure ensures uniform flow distribution and structural integrity, making it a preferred choice for chemical processing, water treatment, and food & beverage industries.
Each tube is manufactured from premium 316L Stainless Steel, offering superior resistance to chlorides, acids, and high-temperature environments. The helical slit pattern provides a self-cleaning effect and minimizes clogging, reducing maintenance downtime. With a slit width of only 0.8mm, it can effectively filter fine particles while maintaining high throughput. The 3mm pitch balances strength and open area, ensuring optimal performance for your specific industrial needs.
Key Features & Technical Specifications:
- Material: AISI 316L Stainless Steel (low carbon, excellent weldability and corrosion resistance)
- Perforation Pattern: Helical (continuous spiral slits for uniform flow)
- Slit Width: 0.8mm ±0.05mm — precise micro-slits for fine filtration
- Pitch (Center-to-Center Distance of Slits): 3mm — optimal open area without sacrificing strength
- Available Sizes: Customizable outer diameter, wall thickness, and length (contact us for tailor-made solutions)
- Surface Finish: Options include pickled, passivated, or mirror-polished (hygienic finish for food contact)
- End Connections: Plain ends, threaded, flanged, or welded (upon request)
| Parameter | Value | Notes |
|---|---|---|
| Material | 316L Stainless Steel | Low carbon, suitable for welded applications |
| Slit Width | 0.8mm | Tolerance ±0.05mm |
| Pitch | 3mm | Center-to-center distance of slits |
| Open Area | ~26% (approximate) | Depends on tube diameter and wall thickness |
| Standard Length | Up to 6 meters (custom available) | Other lengths upon request |
Advantages & Customer Benefits:
- High Durability: 316L stainless steel withstands harsh chemicals, saltwater, and high temperatures (up to 800°C in air).
- Clog Resistance: Helical slits reduce particle buildup, extending service intervals and lowering operating costs.
- Consistent Flow: Precise slit geometry ensures uniform distribution across the tube length.
- Customizable Dimensions: We can manufacture tubes to match your exact specifications — diameter, thickness, length, and end fittings.
- Versatile Applications: Ideal for oil & gas well screens, water intake filters, chemical reactor internals, food processing strainers, and ventilation/sound damping tubes.
With a strong export presence across North America, South America, Europe, Asia, Africa, and Oceania, our factory in Hengshui, Hebei (China) ships from Tianjin, Qingdao, Shanghai, and Foshan ports. We have supplied over US$5 million worth of perforated metal products annually, serving industries ranging from petrochemical to environmental protection. Our commitment to quality control includes strict inspection of slit width, pitch, and surface finish before shipment.
We invite you to experience the reliability of our 316L Stainless Steel Helically Perforated Tube. Whether you need a standard size or a custom design, our engineering team is ready to assist. Contact us today for a quote or technical consultation — we look forward to powering your industrial processes with our precision-crafted tubes.
Frequently Asked Questions (FAQ):
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What is the difference between a helically perforated tube and a slotted tube?
Both are similar, but a helically perforated tube has continuous spiral slits, which provide better structural integrity and self-cleaning properties compared to straight slots. The spiral pattern also reduces stress concentration. -
Can the slit width be customized?
Yes, we can manufacture slit widths ranging from 0.2mm to 5mm, depending on the tube diameter and wall thickness. Please contact us with your specific requirements. -
What is the maximum operating temperature for this tube?
316L stainless steel can be used continuously at temperatures up to 800°C in air, but the actual limit depends on the environment (e.g., corrosive media may reduce the temperature range). -
Do you offer welded tubes or seamless tubes?
Both options are available. Our standard helically perforated tubes are typically made from welded pipe, but seamless tubes can be supplied upon request for higher pressure applications. -
How do you ensure the slit width accuracy?
We use laser measuring tools and quality control procedures during production. Each batch is sampled and inspected for slit width tolerance (±0.05mm) and pitch consistency. -
What is the lead time for a typical order?
Lead time depends on quantity and customization. For standard sizes, it is usually 15–25 working days. For custom orders, please allow 20–35 working days. -
Can you provide certificates of material (e.g., mill test report)?
Yes, we can provide a material test certificate (MTC) from our steel supplier upon request. Customized reports are also available. -
What are the common packaging methods for export?
We pack tubes in bundles with plastic caps, wrapped in waterproof paper, and then in wooden crates or steel pallets. For small orders, individual PVC sleeves are used to prevent scratches.
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