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Help CenterContinuous Slot Johnson Type Wedge Wire Well Screen for Water Filtration
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Welcome to Anping County Boli Hardware Wiremesh Products Factory, a dedicated manufacturer with over 25 years of experience since 1998. Our Continuous Slot Johnson Type Wedge Wire Well Screen is engineered to deliver exceptional water filtration performance in demanding environments. As a factory with annual export value of US$5–10 million, we supply high-quality screens to markets across North America, South America, Europe, Asia, Africa, and Oceania. This product combines robust construction with precise slot geometry to ensure reliable dewatering, sand control, and fluid filtration.
Our wedge wire well screen features a continuous slot design that maximizes open area while maintaining structural integrity. The Johnson-type profile wire is wrapped around support rods and welded at each intersection, creating a strong, self-cleaning filter element. This design minimizes clogging and ensures consistent flow rates over the entire service life. Key specifications include:
| Parameter | Value / Range |
| Slot Width | 0.1 – 6 mm (customizable) |
| Outer Diameter | 1" – 24" (25 – 600 mm) |
| Length per Section | Up to 6 m (customized) |
| Material | SS304 / SS316L / Duplex (optional) |
| Profile Wire Shape | Triangular (V-shaped) |
| Support Rod Spacing | Custom (typically 25 – 50 mm) |
| Connection Type | Threaded, Flanged, Slip-on |
| End Treatment | Plain, beveled, or grooved |
Product Advantages & Customer Benefits:
- High Open Area (up to 60%): The continuous slot design allows maximum water flow while effectively filtering out sand and sediments. This reduces drawdown and energy consumption in pumping systems.
- Self-Cleaning Slot Geometry: The V-shaped profile wire creates a tapered slot that prevents particles from becoming trapped. During backwashing, trapped solids are easily released, extending the screen’s service life.
- Superior Strength & Durability: Each intersection of profile wire and support rod is fully welded, providing high collapse resistance (up to 2000 psi) and long-term reliability in deep wells or harsh environments.
- Corrosion Resistance: Available in stainless steel grades 304, 316L, or duplex, our screens resist rust, chlorine, and brackish water, ideal for both freshwater and seawater applications.
- Customizable Dimensions: We offer tailored slot widths, diameters, lengths, and connection types to match your specific well casing and pump requirements. No need to compromise on fit.
- Faster Installation: Lightweight yet strong construction enables easy handling and quick assembly. Threaded or flanged connections simplify field installation.
- Cost-Effective over Time: Reduced clogging and lower maintenance frequency translate to significant savings in operational costs. Our screens are designed for long-term use, minimizing replacement downtime.
Typical applications include water supply wells, dewatering wells, irrigation wells, oil & gas water injection wells, and industrial filtration systems. The screen is also suitable for gravel-packed wells and can be used as a standalone filter element. Our factory in Hengshui, Hebei, China, has been producing quality wire mesh products since 1998, and we export over US$5 million annually to more than 20 countries. We control every step of production—from wire drawing to welding, inspection, and packaging—ensuring consistent quality.
Trust & Reliability: With 25+ years of manufacturing experience, we have supplied thousands of screens to clients worldwide. Our team provides technical support for slot selection, material choice, and installation guidance. We ship from Tianjin, Qingdao, Shanghai, and Foshan ports, with flexible FOB terms. All screens undergo rigorous quality checks including slot uniformity, weld strength, and dimensional accuracy. We are committed to delivering products that meet your exact specifications. Contact us today for a quote or to discuss your project requirements—we look forward to being your reliable partner in water filtration.
Frequently Asked Questions (FAQ):
-
What is the difference between a Johnson-type screen and other wedge wire screens?
Johnson-type screens feature a continuous slot formed by wrapping triangular profile wire around support rods, with every joint welded. This design provides high strength and a smooth surface that resists clogging. Other types may have discontinuous slots or different wire shapes. -
How do I choose the correct slot width for my well?
Slot width depends on the particle size of the formation sand. A common rule is to select a slot width that retains 90% of the formation material. We can provide sieve analysis recommendations based on your soil sample data. -
Can the screen be used in high-temperature or corrosive environments?
Yes. For corrosive or high-temperature applications (e.g., geothermal wells, oilfield water injection), we recommend stainless steel 316L or duplex grades. Please specify your environmental conditions, and we will suggest the most suitable material. -
What is the maximum length of one screen section?
Standard maximum length is 6 meters (20 feet) per section. Longer lengths can be produced upon request, but shipping limitations may apply. Multiple sections can be connected via threaded or flanged joints. -
Do you offer custom end connections?
Absolutely. We can provide threaded ends (NPT, BSP), flanged ends (ANSI, DIN), or plain ends with beveling for welding. Male/female connectors are also available. -
How do you ensure the slot width accuracy?
We use precision winding machines and laser measurement during production. Each screen is inspected with go/no-go gauges to guarantee slot tolerance within ±0.05 mm. A quality certificate is provided with each shipment. -
What is the typical lead time?
For standard sizes (e.g., 4-inch diameter, 0.5 mm slot), lead time is 15–20 days after order confirmation. Customized orders may require 25–35 days depending on complexity and quantity. -
Can I get a sample before placing a bulk order?
Yes, we offer sample screens (small size, up to 1 meter) for evaluation. The sample cost is refundable upon bulk order. Please contact our sales team for details.
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