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Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a professional manufacturer specializing in perforated metal products. Our Round Hole Perforated Stainless Steel Spiral Welded Pipe for Filter Applications is engineered to deliver superior performance in demanding filtration environments. With over two decades of experience and an annual export value of US$5-10 million, we provide reliable, high-quality pipes that meet the exacting standards of global markets including North America, Europe, Asia, and Oceania.
This product combines the durability of stainless steel with the precision of spiral welding and uniform round perforations, making it an ideal choice for liquid filtration, gas separation, and solid-liquid screening. The spiral welded structure ensures high strength and pressure resistance, while the round holes are designed to minimize clogging and maximize flow efficiency.
Whether you need a filter element for water treatment, oil well screens, or industrial dust collectors, our perforated pipe offers customizable dimensions, hole patterns, and open area ratios to suit your specific application. We offer various stainless steel grades such as 304, 316, and 316L, with optional surface treatments including pickling and passivation for enhanced corrosion resistance.
Key Features & Technical Specifications
- Material: Premium stainless steel (304, 316, 316L, 2205, etc.) – excellent corrosion resistance and long service life.
- Welding Process: Spiral submerged arc welding (SSAW) – provides uniform weld seams, high strength, and minimal deformation.
- Perforation: Precision round holes arranged in staggered or straight patterns, with diameters from 0.5mm to 20mm.
- Open Area Ratio: Adjustable from 5% to 60% to balance flow rate and mechanical strength.
- Customization: Outer diameter (50mm-1000mm), wall thickness (2mm-12mm), and length (up to 6m) are customizable upon request.
- Surface Finish: Pickled, passivated, polished, or epoxy coated – options available for different environments.
- Standards: Manufactured in accordance with ASTM, DIN, and customer-specific specifications.
Technical Specifications (Typical Values)
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Outer Diameter | 100mm – 600mm | 50mm – 1000mm |
| Wall Thickness | 3mm – 8mm | 2mm – 12mm |
| Hole Diameter | 1mm – 10mm | 0.5mm – 20mm |
| Open Area | 10% – 40% | 5% – 60% |
| Length | 3m – 6m | Custom lengths |
Advantages for Your Applications
- Enhanced Flow Efficiency: The round hole design reduces turbulence and pressure drop, ensuring consistent filtration performance.
- High Structural Integrity: Spiral welding delivers a pipe that can withstand high internal and external pressure, ideal for downhole or deep-well filters.
- Corrosion Resistance: Stainless steel grades like 316L provide excellent resistance to chlorides, acids, and harsh chemicals, extending service life in corrosive environments.
- Low Maintenance: Smooth interior and exterior surfaces minimize fouling and make cleaning easier, reducing downtime.
- Versatile Applications: Suitable for water filtration, oil & gas well screens, chemical processing, food & beverage, and pharmaceutical industries.
- Cost-Effective: Durable construction reduces replacement frequency, and our factory-direct pricing offers competitive value.
Trust & Reliability
With a history spanning more than 25 years, Anping County Boli Hardware Wiremesh Products Factory has built a reputation for quality and reliability. We export to over 15 countries and regions, with annual export revenues between US$5-10 million. Our production facility in Hengshui, Hebei, is equipped with advanced CNC perforating machines and spiral welding lines, ensuring consistent quality batch after batch.
We offer flexible shipping options from major ports including Tianjin, Qingdao, Shanghai, and Foshan. Our dedicated team provides technical support, sample testing, and custom fabrication services. We are committed to delivering products that meet your exact specifications, with on-time delivery and competitive pricing.
Contact us today to discuss your requirements for Round Hole Perforated Stainless Steel Spiral Welded Pipes. Let our expertise help you achieve optimal filtration performance while reducing total cost of ownership.
Frequently Asked Questions
Q1: What stainless steel grades are available for this pipe?
A: We commonly use 304, 316, and 316L stainless steel. Other grades like 2205 duplex or 904L are available upon request. Please specify your corrosion resistance requirements.
Q2: Can I get custom hole patterns or spacing?
A: Yes, we can customize hole diameter, pitch (center-to-center distance), and arrangement (staggered or straight) to achieve your desired open area and flow characteristics.
Q3: What is the maximum length per pipe?
A: Standard lengths are up to 6 meters. For longer pipes, we can provide butt-welded sections or custom fabrication. Maximum length depends on transportation and handling constraints.
Q4: How do you ensure the quality of the spiral weld?
A: We use automated submerged arc welding with strict process control. Each pipe undergoes hydrostatic testing and visual inspection. Weld seams are checked for defects to ensure leak-tightness and strength.
Q5: What is the typical lead time for orders?
A: 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. We offer expedited options for urgent needs.
Q6: Can you provide samples before mass production?
A: Yes, we can produce sample pipes based on your specifications. Sample lead time is typically 7-10 days. We also offer free samples for existing stock items (shipping cost may apply).
Q7: What are the payment terms?
A: Generally, we accept T/T (30% deposit, 70% before shipment), L/C at sight, or other terms negotiable. For long-term cooperation, we can discuss flexible payment options.
Q8: Do you offer surface treatment services like coating or lining?
A: Yes, we can apply epoxy coating, galvanizing, or other anti-corrosion linings. Passivation and pickling are standard for stainless steel. Please advise your specific requirements.
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