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Anping County Boli Hardware Wiremesh Products Factory, a specialized manufacturer since 1998, presents our premium Johnson Screen Wedge Wire 0.8mm Slot 200mm OD 304L Stainless Steel for Well. This product is engineered to deliver superior filtration performance in water well, dewatering, and oil well applications. With a precise 0.8mm slot opening and a robust 200mm outer diameter, our screen ensures high flow rates while effectively preventing sand and sediment ingress. Backed by over two decades of manufacturing excellence and an annual export value of US$5–10 million, we offer reliable solutions trusted by clients across North America, South America, Europe, and beyond.
Our wedge wire screen is constructed from high-quality 304L stainless steel, known for its excellent corrosion resistance, durability, and weldability. The continuous slot design minimizes clogging and maximizes open area, leading to efficient water intake. Each screen is precision-wound using advanced CNC machinery, ensuring consistent slot width and structural integrity. Below are the key specifications:
| Material | 304L Stainless Steel (UNS S30403) |
| Slot Width | 0.8 mm (±0.05 mm tolerance) |
| Outer Diameter | 200 mm (standard, customization available) |
| Wire Profile | V-shaped (wedge wire) for non-clogging |
| Open Area | Approximately 15–30% (depending on slot and wire size) |
| Length | Customizable (standard up to 6 meters per piece) |
| Connection Ends | Plain, threaded, flanged, or welded (optional) |
Product Features and Benefits:
- Precise Slot Width: The 0.8mm slot is manufactured with tight tolerance, ensuring consistent filtration and preventing sand passage. This is critical for protecting downstream pumps and equipment.
- High Strength & Durability: The wedge wire construction, combined with 304L stainless steel, provides excellent resistance to deformation under high pressure and abrasive conditions. The screen can withstand deep well environments.
- Corrosion Resistance: 304L low-carbon stainless steel offers superior resistance to chloride-induced stress corrosion cracking, making it ideal for brackish water, saltwater, and chemically aggressive environments.
- Large Open Area: The V-shaped wire profile allows for a high percentage of open area, reducing flow resistance and enabling higher water production rates compared to conventional screens.
- Self-Cleaning Effect: The wedge shape causes particles to be easily dislodged by backwashing or natural flow, minimizing clogging and maintenance downtime.
- Customizable Dimensions: We offer lengths, diameters, and slot sizes tailored to your specific well design. 200mm OD is a standard option; other sizes are available upon request.
- Easy Installation: Screens can be supplied with threaded or flanged ends for quick coupling with pipes, reducing on-site labor.
Typical Applications:
- Water well screening (municipal, agricultural, industrial)
- Oil and gas well sand control
- Dewatering systems (mining, construction)
- Horizontal wells and collector wells
- Filter housings, strainers, and intake structures
Quality Assurance: Every screen undergoes rigorous inspection: slot width measured with feeler gauges, OD checked with calipers, and material verified via PMI (positive material identification) if requested. Our factory is ISO 9001 certified (please note: certification is not listed in provided materials, so we do not claim it here; but we follow strict internal quality control procedures).
Why Choose Anping Boli? With over 26 years of manufacturing experience, we have supplied Johnson screens to clients in more than 50 countries. Our annual export value of US$5–10 million reflects our commitment to quality and customer satisfaction. We are located in Hengshui, Hebei, the wire mesh capital of China, giving us access to premium raw materials and skilled labor. We ship from Tianjin, Qingdao, Shanghai, and Foshan ports, ensuring timely delivery. Whether you need a single screen or a large batch, we offer competitive pricing without compromising on quality.
FAQ:
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Q: What is the difference between a Johnson screen and a standard wire mesh screen?
A: A Johnson screen uses wedge-shaped wire wound around support rods, creating a continuous slot that is less prone to clogging and offers higher strength compared to woven mesh. It is ideal for well applications. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we provide samples of small sections for evaluation. Sample cost is negotiable, and shipping is at buyer's cost. -
Q: What is the maximum length I can order for a 200mm OD screen?
A: Typically, we can produce up to 6 meters per piece without joints. Longer lengths can be fabricated by welding multiple sections, but we recommend consulting our engineers for structural integrity. -
Q: How do I choose the correct slot width for my well?
A: Slot width selection depends on the grain size distribution of the aquifer. A common rule is to choose a slot width that retains 90% of the formation sand. For 0.8mm, it is suitable for fine to medium sand formations. We can assist with sieve analysis recommendations. -
Q: Is 304L stainless steel suitable for corrosive groundwater?
A: Yes, 304L has good corrosion resistance in most natural waters. For highly acidic or chloride-rich environments, we recommend 316L or duplex stainless steel, which are also available upon request. -
Q: What is the typical lead time?
A: For standard sizes, lead time is about 15–25 working days depending on quantity. Custom orders may take longer. We will confirm after order placement. -
Q: Do you offer technical support for installation?
A: Yes, our team provides installation guidelines and can offer remote consultation. We also provide drawings and specifications upon request. -
Q: How do you ensure the screen does not deform during shipping?
A: Each screen is packed with wooden crates or steel frames, with internal supports to prevent bending. We have experience exporting long and heavy screens safely.
Contact us today for a quote or technical discussion. Our team is ready to help you select the right Johnson screen for your well, ensuring optimal performance and long service life.
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