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Help CenterGalvanized Straight Seam Welded Perforated Pipe 1.5mm Wall Thickness 20mm OD for Filtration
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Welcome to Anping County Boli Hardware Wiremesh Products Factory, a trusted manufacturer with over 25 years of experience in producing high-quality metal products. Since 1998, we have been dedicated to delivering precision-engineered solutions for global clients. Our Galvanized Straight Seam Welded Perforated Pipe 1.5mm Wall Thickness 20mm OD for Filtration is designed to meet the demanding requirements of liquid and gas filtration, solid-liquid separation, and industrial screening. This pipe combines robust construction with excellent corrosion resistance, ensuring long service life even in harsh environments. With an annual export value of US$5–10 million, we serve markets across North America, South America, Europe, Asia, Africa, and Oceania, consistently providing reliable products that our customers trust.
Our perforated pipe is manufactured using high-quality galvanized steel coils and advanced straight seam welding technology. The 1.5mm wall thickness offers optimal strength without adding excessive weight, while the 20mm outer diameter provides a versatile size suitable for numerous filtration applications. The perforations are precisely punched or drilled to ensure uniform flow distribution and efficient particle retention. Whether you need round holes, slotted openings, or custom patterns, we can tailor the product to your specific requirements. The hot-dip galvanized surface treatment provides superior protection against rust and corrosion, making it ideal for water treatment, chemical processing, oil filtration, and agricultural irrigation systems.
Key Features & Technical Specifications
- Material: High-quality galvanized steel strip (Q235 or equivalent), hot-dip galvanized after welding.
- Wall Thickness: 1.5mm (±0.1mm tolerance) – provides excellent structural integrity.
- Outer Diameter: 20mm OD (±0.2mm tolerance) – compatible with standard fittings and couplings.
- Welding Type: Straight seam high-frequency welding – smooth internal and external surfaces, no burrs.
- Perforation Options: Round holes (diameter 1–10mm), slotted (width 0.5–5mm, length 5–50mm), or custom patterns. Open area can be adjusted from 10% to 60%.
- Length: Standard 6m, but we can cut to any length between 0.5m and 12m upon request.
- End Finishing: Plain ends, threaded ends (NPT/BSP), or grooved ends for quick coupling.
- Packaging: Bundles with steel strapping, wrapped in waterproof paper, or wooden crates for export.
| Parameter | Value |
|---|---|
| Material Grade | Galvanized Steel (Q235 + Hot-dip Galvanized) |
| Wall Thickness | 1.5mm |
| Outer Diameter | 20mm |
| Perforation Diameter (Round) | 1.0mm – 10.0mm (customizable) |
| Open Area Ratio | 10% – 60% (depending on pattern) |
| Standard Length | 6m (other lengths available) |
| Tensile Strength | ≥350 MPa |
| Zinc Coating Weight | 200–350 g/m² (optional higher) |
Advantages & Customer Benefits
- Superior Corrosion Resistance: The hot-dip galvanized coating forms a metallurgical bond with the steel, providing long-lasting protection against rust, chemicals, and moisture. Ideal for water treatment, irrigation, and outdoor applications.
- Uniform Filtration Performance: Precision-perforated holes ensure consistent flow distribution and efficient particle retention. The straight seam weld creates a smooth inner surface, reducing pressure drop and clogging.
- High Mechanical Strength: With 1.5mm wall thickness and strong welded seams, this pipe can withstand internal pressure and external loads. Suitable for use as a filter support core, screen tube, or structural component.
- Versatile Customization: We offer a wide range of perforation patterns, diameters, lengths, and end connections. Whether you need a simple round hole pattern for coarse filtration or a fine slot for precise separation, we can deliver.
- Cost-Effective Solution: Compared to seamless perforated pipes, the straight seam welded design reduces manufacturing costs while maintaining high quality. You get a reliable filtration product at a competitive price.
- Easy Installation & Maintenance: Lightweight yet sturdy, these pipes can be easily cut, threaded, or welded on-site. Their smooth surface facilitates cleaning and backwashing.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With more than two decades of manufacturing expertise, we have established a reputation for quality and reliability. Our factory in Hengshui, Hebei, China, is equipped with advanced production lines and strict quality control systems. Each batch of perforated pipe undergoes rigorous inspection for dimensional accuracy, weld quality, and galvanizing thickness. We export to global markets including North America, South America, Europe, Africa, and Oceania, with annual export value exceeding US$5 million. Our experienced team ensures prompt delivery from major ports such as Tianjin, Qingdao, Shanghai, and Foshan. We are committed to providing customized solutions, competitive pricing, and excellent after-sales support. Whatever your filtration needs, we are ready to partner with you.
Contact us today for a quote or technical consultation. Let our galvanized straight seam welded perforated pipe help you achieve efficient, reliable filtration.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum working pressure for this pipe?
A: The maximum working pressure depends on the wall thickness, diameter, and perforation pattern. For 1.5mm wall thickness and 20mm OD, the pipe can typically withstand up to 10 bar (145 psi) for non-perforated sections. For perforated sections, please consult our technical team for specific applications. -
Q: Can I get samples before placing a bulk order?
A: Yes, we offer free samples for evaluation (shipping cost may apply). You can request a sample of standard length (e.g., 300mm) with your desired perforation pattern. We can also provide a quotation for pre-production samples. -
Q: What is the lead time for standard orders?
A: For standard sizes and common perforation patterns, lead time is approximately 15–25 working days after order confirmation. Custom patterns may require 20–30 working days. We always keep stock for popular specifications. -
Q: How do you ensure the quality of the galvanized coating?
A: We use hot-dip galvanizing process with strict control of zinc bath temperature and immersion time. The coating thickness is measured using a magnetic thickness gauge, and we can provide a test report upon request. The coating adheres well and meets standard requirements. -
Q: Can you produce pipes with different slot widths and lengths?
A: Absolutely. We have punching dies for various slot dimensions (width 0.5–5mm, length 5–50mm). For special requirements, we can manufacture custom tooling at a reasonable cost. Minimum order quantity may apply for custom patterns. -
Q: Is the pipe suitable for food-grade applications?
A: The galvanized coating is not typically recommended for direct contact with food due to zinc content. However, if the pipe is used as a support structure or in a non-contact filtration system, it may be acceptable. For food-grade applications, we recommend using stainless steel perforated pipes, which we also supply. -
Q: What packaging options do you offer for export?
A: We pack pipes in bundles with steel strapping, then wrap them with waterproof paper or plastic. For small orders, we use wooden crates. For sea freight, we can also use fumigated wooden pallets as per your requirements. Marking and labeling can be customized. -
Q: Do you provide threaded ends or other connection types?
A: Yes, we can thread both ends (NPT or BSP standards) or supply plain ends for welding. We also offer grooved ends for mechanical couplings. Please specify your requirements when ordering.
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