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Help Center316L Stainless Steel Spiral Wound Bridge Slot Screen, 0.5mm Gap, 1000mm Length, ISO Compliant
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Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is proud to introduce our premium 316L Stainless Steel Spiral Wound Bridge Slot Screen with a precise 0.5mm slot gap and standard 1000mm length. As a specialized manufacturer with over 20 years of experience, we have engineered this screen to deliver exceptional filtration performance, high mechanical strength, and long service life in demanding environments. Our ISO-compliant production process ensures every screen meets rigorous quality standards, making it an ideal choice for water well, oil and gas, petrochemical, and mining applications worldwide.
The spiral wound design combined with bridge slot structure provides a unique combination of high open area and robust structural integrity. The 316L stainless steel material offers superior corrosion resistance against chlorides, acids, and alkaline conditions, outperforming standard 304 grades. With a slot gap of 0.5mm, it effectively filters sand and fine particles while maintaining high flow rates. The 1000mm length is a popular standard size, but we offer customization to meet specific project requirements.
Key Features & Technical Specifications
- Superior Material: 316L stainless steel – low carbon content minimizes carbide precipitation during welding, maintaining corrosion resistance even in harsh environments.
- Precision Slot Gap: 0.5mm (±0.05mm tolerance) – ensures consistent filtration and prevents sand ingress.
- High Open Area: Typically 30%–40% open area, reducing pressure drop and maximizing water/petroleum recovery.
- Bridge Slot Profile: V-shaped continuous slot with smooth inner surface to prevent clogging and ease cleaning.
- Spiral Wound Construction: Continuous wire wound around a perforated support tube, offering high collapse strength and flexibility.
- Customizable Diameter: Available from 50mm to 300mm (2" to 12") to fit various casing sizes.
- End Connections: Threaded, flanged, or welded ends available upon request.
- Length Options: Standard 1000mm, but can be customized to 500mm, 1500mm, 2000mm, or continuous lengths up to 6 meters.
- ISO Compliant Manufacturing: All screens are produced under strict quality control procedures, including slot gap measurement, pressure testing, and material certification.
| Parameter | Value |
|---|---|
| Material Grade | 316L (UNS S31603) |
| Slot Gap | 0.5 mm (0.020") |
| Length | 1000 mm (1 meter) |
| Outer Diameter | Customizable (e.g., 100mm, 150mm) |
| Open Area | ≥ 30% (depending on diameter) |
| Collapse Strength | ≥ 200 bar (customizable) |
| End Connection | Threaded (NPT/BSP) / Flanged / Welded |
| Surface Finish | Pickled & Passivated (Bright Annealed optional) |
Advantages & Customer Benefits
- Longer Service Life: 316L stainless steel resists corrosion from saltwater, acidic groundwater, and chemicals, reducing replacement frequency.
- Increased Flow Efficiency: High open area design minimizes head loss, improving pump efficiency and saving energy costs.
- Reduced Maintenance: Smooth slot profile prevents particle bridging and allows easy backwashing.
- Versatile Applications: Suitable for water wells, dewatering, oil & gas downhole screens, sand control, and industrial filtration.
- Cost-Effective: Durable construction reduces total cost of ownership compared to lower-grade screens.
- Global Compliance: ISO-compliant manufacturing ensures consistent quality for international projects.
Why Choose Anping Boli?
Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer of wire mesh and screening products. With an annual export value of US$5 million – US$10 million, we ship our screens to over 20 markets worldwide including North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our factory is located in Hengshui, Hebei – the wire mesh capital of China – giving us access to advanced manufacturing facilities and raw material supply chains. Our ISO-compliant production system, combined with rigorous quality checks (slot gap measurement, material certification, pressure tests), ensures every screen delivers reliable performance. We offer flexible customization options, OEM/ODM services, and prompt shipping from major ports (Tianjin, Qingdao, Shanghai, Foshan).
When you choose Boli, you are choosing a partner with over 25 years of expertise, a commitment to quality, and a global reach. Our team of engineers can assist with technical specifications, provide samples, and offer tailored solutions for your project. Contact us today to discuss your requirements or request a quotation.
Frequently Asked Questions
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Q: What is the difference between bridge slot and wedge wire screen?
A: Bridge slot screens have a unique V-shaped wire profile that is spiral wound, offering a smooth inner surface and high strength. Wedge wire screens are also V-shaped but typically have a continuous slot. Both are efficient, but bridge slot design provides better resistance to clogging in certain applications. -
Q: Can I get a custom diameter or length?
A: Yes, we offer diameters from 50mm to 300mm (2" to 12") and lengths from 500mm up to 6000mm. Contact us with your specifications. -
Q: Is this screen suitable for saltwater environments?
A: Absolutely. 316L stainless steel has excellent resistance to chloride-induced corrosion, making it ideal for seawater, brackish water, and coastal wells. -
Q: What end connections are available?
A: We provide threaded (NPT/BSP), flanged, and welded ends. Custom connections can be fabricated upon request. -
Q: Do you provide material certificates?
A: Yes, we can provide mill test certificates for 316L material upon request, as well as inspection reports for slot gap and pressure tests. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is typically 10 pieces for standard sizes, but we can accommodate smaller trial orders for new customers. -
Q: How long is the delivery time?
A: For standard 1000mm screens, we can ship within 15-20 working days after order confirmation. Custom sizes may require 25-30 days. -
Q: Do you offer samples?
A: Yes, we provide sample pieces (e.g., 200mm length) for testing. Please contact us to arrange sample shipment.
Ready to order? Contact Anping Boli today for a competitive quote and fast delivery!
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