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Help CenterCylindrical Welded Filter Tube, 304 SS, 0.5mm Slot, 3 Inch OD, 500mm Length, 20 Bar
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Welcome to Anping County Boli Hardware Wiremesh Products Factory, a trusted manufacturer since 1998 specializing in wire mesh and filtration solutions. Our Cylindrical Welded Filter Tube is engineered from premium 304 Stainless Steel with a precise 0.5mm slot to deliver reliable solid-liquid separation in demanding industrial environments. With an outer diameter of 3 inches (76.2 mm), 500mm length, and a robust 20 Bar pressure rating, this filter tube is designed for high-performance applications where durability and consistent filtration are critical.
Each tube is manufactured using advanced welding technology to ensure uniform slot openings and structural integrity. The cylindrical welded construction provides excellent resistance to deformation under pressure, making it ideal for use in water treatment, oil & gas, petrochemical, food processing, and mining industries. Our factory’s export experience (US$5–10 million annually) and extensive global shipping network (from Tianjin, Qingdao, Shanghai, etc.) guarantee fast delivery and consistent quality.
Key Features & Technical Specifications
- Material: 304 Stainless Steel – excellent corrosion resistance, suitable for most aqueous and chemical environments.
- Slot Size: 0.5 mm (0.020 inch) – precise filtration for particles down to 500 microns.
- Outer Diameter: 3 inches (76.2 mm) – standard size compatible with common housings and fittings.
- Length: 500 mm (19.7 inches) – compact yet effective for moderate flow requirements.
- Pressure Rating: 20 Bar (290 psi) – designed for high-pressure systems without failure.
- Weld Type: Continuous longitudinal seam welding – ensures leak-proof construction and uniform slot geometry.
- End Connections: Plain ends (customizable with threads, flanges, or caps upon request).
- Surface Finish: Mill finish or pickled & passivated for enhanced corrosion resistance.
| Parameter | Value |
|---|---|
| Material Grade | 304 Stainless Steel |
| Slot Width | 0.5 mm (±0.05 mm) |
| Outer Diameter | 3 inch (76.2 mm) |
| Length | 500 mm (19.7 inches) |
| Maximum Working Pressure | 20 Bar (290 psi) |
| Slot Open Area | ~15% (depending on slot pattern) |
| Operating Temperature | -20°C to +400°C (for 304 SS) |
Advantages & Customer Benefits
- High mechanical strength: The welded construction withstands high differential pressure and backwash cycles without deforming.
- Consistent filtration: Precision-wound or welded slots ensure uniform filtration performance across the entire length.
- Easy cleaning: Smooth surface and slot design allow efficient backflushing or chemical cleaning, extending service life.
- Corrosion resistance: 304 stainless steel provides excellent resistance to most non-chloride environments, reducing replacement frequency.
- Customizable ends: We can add threaded ends, flanges, or caps to match your existing piping system – just request during ordering.
- Cost-effective: As a factory-direct manufacturer, we offer competitive pricing without compromising quality.
Our cylindrical welded filter tubes are widely used in well screens, intake filters, strainers, and process filtration for industries such as:
- Water treatment (municipal, industrial, desalination)
- Oil & gas (sand control, produced water filtration)
- Chemical processing (catalyst recovery, liquid polishing)
- Food & beverage (syrup, beer, juice filtration)
- Mining (dewatering, slurry filtration)
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With over 25 years of manufacturing experience (since 1998), we have built a reputation for delivering high-quality wire mesh products to clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our annual export value of US$5 million to US$10 million reflects the trust global buyers place in our products. We ship from major Chinese ports like Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery. Our in-house quality control team inspects every filter tube for slot accuracy, weld integrity, and pressure resistance before shipment.
We understand that filtration requirements vary, so we offer custom sizes, materials (316 SS, duplex), and slot dimensions on request. Whether you need a single prototype or bulk orders, we are ready to support your project with technical advice and competitive pricing. Contact us today for a quote or to discuss your specific application – your satisfaction is our priority.
Frequently Asked Questions
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Q: What is the maximum temperature this filter tube can handle?
A: For 304 stainless steel, the recommended operating temperature range is -20°C to +400°C. For higher temperatures, we recommend 316L or other alloys. -
Q: Can I get the tube with a threaded connection?
A: Yes, we can add male or female threads (NPT, BSP) at one or both ends. Please specify your requirement when ordering. -
Q: How do I clean a clogged filter tube?
A: Backwashing with clean water or air is effective. For stubborn deposits, chemical cleaning with mild acid or alkaline solutions (compatible with 304 SS) can be used. Avoid using hydrochloric acid. -
Q: Is this filter tube suitable for seawater applications?
A: 304 stainless steel has limited resistance to chloride pitting. For seawater, we recommend using 316L stainless steel. Please consult our technical team for the best material. -
Q: What is the tolerance on slot width?
A: Our standard tolerance is ±0.05 mm for slot widths. Tighter tolerances are available upon request. -
Q: Do you offer samples before bulk order?
A: Yes, we provide samples for evaluation. The cost of samples is negotiable, and we can deduct the sample cost from your first bulk order. -
Q: What is the minimum order quantity (MOQ)?
A: Typically, our MOQ is 50 pieces for standard sizes. For custom sizes, MOQ may vary. Please contact us for details. -
Q: How long is the delivery time?
A: For standard sizes, delivery is usually 15–20 working days after order confirmation. Custom orders may take 25–30 working days.
Built on decades of expertise, our cylindrical welded filter tubes provide the reliability and performance your operations demand. Request a quote now to experience the Boli difference.
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