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Help CenterFor Sand Control in Water Wells 316L Stainless Steel Johnson Wedge Wire Filter
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As a professional manufacturer with over 20 years of experience in wire mesh products, Anping County Boli Hardware Wiremesh Products Factory proudly presents our 316L Stainless Steel Johnson Wedge Wire Filter, specifically engineered for sand control in water wells. This filter combines the corrosion resistance of premium 316L stainless steel with the proven efficiency of the Johnson wedge wire design, ensuring reliable, long-term operation even in aggressive groundwater conditions. Whether you are drilling a new well or rehabilitating an existing one, our filter offers a cost-effective solution to reduce sand pumping, extend pump life, and maintain consistent water quality.
The unique V-shaped wedge wire profile creates a continuous slot that allows water to flow freely while effectively blocking sand and fine particles. With a self-cleaning geometry that minimizes clogging, this filter reduces maintenance downtime and increases overall well productivity. Each unit is manufactured to precise specifications, with customizable slot openings, diameters, and lengths to match your well's hydrogeological requirements. Below we break down the key features and technical specifications.
Key Features & Technical Specifications
- Material: 316L Stainless Steel – excellent resistance to chloride corrosion, suitable for brackish water and saline aquifers.
- Wedge Wire Profile: V-shaped continuous slot – prevents particle bridging and ensures uniform filtration.
- Slot Size Range: 0.1 mm to 6 mm – can be tailored to specific sand gradation.
- High Open Area: Up to 40% – reduces head loss and improves well yield.
- Structural Strength: Reinforced support rods provide high collapse resistance under deep well pressure.
- Connection Options: Threaded, flanged, or plain end – flexible installation.
- Surface Finish: Pickled, passivated, or electro-polished – enhances corrosion resistance and cleanliness.
- Customizable Dimensions: Diameter from 50 mm to 800 mm, length up to 6 m per section.
| Parameter | Value |
|---|---|
| Material Grade | 316L (UNS S31603) |
| Standard Slot Tolerance | ±0.05 mm |
| Maximum Operating Temperature | 450°C (in non-oxidizing conditions) |
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
| Available Lengths | 0.5 m, 1 m, 2 m, 3 m, 6 m (custom) |
How the Johnson Wedge Wire Design Benefits Your Well
The wedge wire filter works by allowing water to enter through the slot while retaining sand and gravel pack material. The continuous slot design is inherently less prone to clogging compared to punched or woven screens because particles that pass through the narrow opening are less likely to be trapped. Additionally, the V-shape creates a “self-cleaning” effect: as water flows from the outside in, any fine particles that enter the slot are flushed out on the inside, preventing build-up. This results in a longer service life and reduced well development time.
Key benefits for water well operators:
- Minimized sand production – reduces pump wear and maintenance costs.
- Higher flow rates – up to 40% open area versus traditional screens.
- Excellent corrosion resistance – suitable for aggressive groundwater chemistry.
- Easy to install – lightweight yet strong, with compatibility with standard well casings.
- Customizable slot size – match the exact sand gradation of your aquifer.
- Long service life – 316L stainless steel offers decades of reliable performance.
Trusted Quality from a Reliable Manufacturer
Anping County Boli Hardware Wiremesh Products Factory has been a leading manufacturer of wire mesh and filtration products since 1998. With an annual export value of US$5 million – US$10 million, we serve a global clientele across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide. We combine over two decades of manufacturing expertise with strict quality control to deliver filters that meet the demanding requirements of water well sand control. Every filter is fabricated using advanced welding technology and inspected for dimensional accuracy and slot uniformity. We stand behind our products with responsive customer service and technical support. Contact us today to discuss your specific well conditions and receive a customized recommendation.
Frequently Asked Questions (FAQ)
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Q: What is the difference between 316L and 304 stainless steel for water well screens?
A: 316L contains molybdenum, which provides superior resistance to chloride corrosion and pitting. For water wells with brackish water, high salinity, or chemical exposure, 316L is the recommended choice for longer service life. -
Q: Can the slot opening be customized for my specific sand size?
A: Yes. We can manufacture slot openings from 0.1 mm to 6 mm to match your well's sand gradation analysis. Simply provide your sand sieve test results, and we will recommend the optimal slot size. -
Q: How do I install the Johnson wedge wire filter in a water well?
A: Installation typically involves attaching the filter to the well casing using threaded or flanged connections. The filter is lowered into the borehole, and a gravel pack is placed around it. Detailed installation guidelines are provided with each order. -
Q: What is the maximum depth (pressure) this filter can withstand?
A: The collapse strength depends on the filter diameter, wire thickness, and support rod design. For standard configurations, our filters are suitable for depths up to 300 meters. For deeper wells, we can reinforce the structure – please consult our engineering team. -
Q: How do I clean or maintain the filter?
A: The wedge wire design is self-cleaning under normal flow conditions. If clogging occurs, the filter can be cleaned by backwashing with water or air, or by using chemical cleaning agents compatible with 316L stainless steel. We recommend periodic inspection. -
Q: Do you offer custom lengths and diameters?
A: Absolutely. We can produce filters with diameters from 50 mm to 800 mm and lengths up to 6 m per section. Longer wells can be assembled by connecting multiple sections. Custom dimensions are available upon request. -
Q: What surface treatments are available?
A: Standard finishes include pickling and passivation. For enhanced corrosion resistance and a smoother surface, we can also provide electro-polishing. This is especially beneficial for wells with sensitive water quality requirements. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we offer sample orders for evaluation. Please contact our sales team with your specifications, and we will provide a quote and delivery time.
For more information or to place an order, please reach out to our sales team. We are ready to support your water well sand control needs with high-quality, custom-engineered solutions.
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