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Help CenterPerforated Pipe With 3mm Round Holes, 20mm OD, 304 Stainless Steel, Suitable for Fluid Filtration
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Welcome to Anping County Boli Hardware Wiremesh Products Factory, a trusted manufacturer with over 25 years of experience in the wire mesh and perforated metal industry. Our Perforated Pipe with 3mm Round Holes, 20mm OD, 304 Stainless Steel is engineered for efficient fluid filtration in demanding environments. Made from premium 304 stainless steel, this perforated tube offers excellent corrosion resistance, durability, and precise hole geometry to ensure consistent flow rates and particle retention. Whether you need a standard size or a custom solution, our factory can deliver quality products tailored to your specifications.
This perforated pipe is designed to perform reliably in water treatment, oil and gas separation, chemical processing, and many other industrial filtration applications. The 3mm round holes are uniformly spaced to maximize open area while maintaining structural integrity. With a 20mm outer diameter, it fits standard piping systems and can be easily integrated into existing equipment. Each pipe is manufactured using advanced CNC punching and laser cutting technologies, ensuring tight tolerances and smooth edges.
Key Features & Technical Specifications
- Material: 304 Stainless Steel (UNS S30400) – excellent corrosion and oxidation resistance.
- Outer Diameter: 20mm (0.787 inches) – precise dimension for standard couplings.
- Hole Diameter: 3mm round holes – ideal for filtering particles down to approximately 3mm.
- Perforation Pattern: Staggered arrangement to maximize open area and flow distribution.
- Wall Thickness: Available from 0.5mm to 2.0mm (customizable) – balance between strength and flow capacity.
- Length: Custom lengths from 100mm to 6000mm, or standard lengths per your request.
- Surface Finish: Pickled, polished, or as specified – smooth surface reduces fouling.
- End Preparation: Plain ends, threaded ends (NPT/BSP), or beveled for welding – flexible for connection.
Performance & Dimensional Data
| Property | Specification |
| Material Grade | 304 Stainless Steel (1.4301) |
| Outer Diameter (mm) | 20.0 ± 0.2 |
| Hole Diameter (mm) | 3.0 ± 0.1 |
| Open Area (%) | Approx. 40% (depending on pattern) |
| Wall Thickness Options (mm) | 0.5, 0.8, 1.0, 1.2, 1.5, 2.0 |
| Maximum Operating Temperature | Up to 870°C (continuous) / 925°C (intermittent) |
| Pressure Rating | Depends on wall thickness; typical working pressure up to 10 bar |
The uniform hole pattern and high-quality stainless steel construction offer several benefits to your filtration system: reduced pressure drop, longer service life, and easy cleaning. The 3mm round holes are suitable for filtration of liquids containing coarse solids, such as sand, gravel, or large particles, while also serving as a support layer for finer filter media. The 20mm OD allows for simple integration into pipe networks or as a stand-alone filter element.
Why Choose Our Perforated Pipe?
- Durable Material: 304 stainless steel resists rust, chemicals, and high temperatures, making it suitable for harsh environments.
- Precision Manufacturing: Our advanced CNC punching machines ensure consistent hole size and spacing, meeting tight tolerances.
- Customizable Options: Length, wall thickness, end finish, and perforation pattern can be tailored to your exact requirements.
- Cost-Effective: As a direct manufacturer, we offer competitive pricing without compromising quality.
- Versatile Applications: Ideal for water filters, oil strainers, gas diffusers, spark arrestors, and many other filtration systems.
Trusted Quality & Experience
Established in 1998, Anping County Boli Hardware Wiremesh Products Factory has been a reliable supplier of perforated metal products for over two decades. Our annual export value reaches US$5-10 million, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide. With a strong reputation for quality and customer service, we have built long-term partnerships with clients in the oil & gas, water treatment, and chemical industries.
We understand that every filtration project has unique requirements. Our team of engineers can assist you in selecting the optimal perforated pipe configuration, including hole pattern, wall thickness, and end connections. We also offer free samples for testing and evaluation. Contact us today to discuss your fluid filtration needs – we are ready to provide a solution that meets your performance and budget expectations.
Frequently Asked Questions (FAQ)
Q1: What is the typical open area of this perforated pipe?
A: The open area depends on the hole pattern and spacing. For a staggered pattern with 3mm holes on a 4mm pitch, the open area is approximately 40%. We can adjust the pattern to achieve higher or lower open area as needed.
Q2: Can I get a pipe with different hole sizes?
A: Yes, we offer custom hole diameters from 0.5mm to 20mm. The 3mm round hole is a standard option, but we can manufacture any size you require.
Q3: Is this pipe suitable for use with corrosive fluids?
A: 304 stainless steel provides good resistance to many corrosive environments, including water, acids, and alkalis. For highly corrosive fluids, we recommend 316L stainless steel, which is also available upon request.
Q4: What lengths are available?
A: We can produce lengths from 100mm to 6000mm. Standard lengths include 1m, 2m, and 3m. Custom lengths with a tolerance of ±1mm are possible.
Q5: How do you ensure the holes are clean and burr-free?
A: Our punching process uses precision dies, and we perform deburring and pickling to remove any sharp edges. The inner and outer surfaces are smooth to prevent particle accumulation.
Q6: What is the minimum order quantity (MOQ)?
A: The MOQ depends on the size and configuration. For standard sizes, the MOQ is 100 pieces. For custom dimensions, please contact us for a quote.
Q7: Can you provide samples before bulk order?
A: Yes, we offer free samples (shipping cost may apply). You can request a sample of standard size for testing.
Q8: How long does delivery take?
A: For standard products, delivery time is 7-15 working days. Custom orders may take 15-25 working days, depending on complexity.
We are confident that our 20mm OD perforated pipe with 3mm round holes will meet your fluid filtration requirements. Backed by decades of manufacturing experience and a global customer base, you can rely on us for consistent quality and dependable service. Reach out to our sales team for a personalized quotation or technical consultation.
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