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Help Center304 Stainless Steel Johnson Wedge Filter 0.5mm Slot Width 25mm OD 1000mm Length for Water Treatment
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As a leading manufacturer with over 25 years of experience, Anping County Boli Hardware Wiremesh Products Factory proudly presents our 304 Stainless Steel Johnson Wedge Filter – a precision-engineered solution for water treatment and industrial filtration. Designed with a 0.5mm slot width, 25mm outer diameter, and 1000mm length, this filter combines robust construction with high flow efficiency. Our wedge wire screens are manufactured using advanced continuous slot winding technology, ensuring consistent slot openings and superior mechanical strength. Whether you need fine filtration for groundwater, process water, or wastewater, this product delivers reliable performance and long service life.
The unique V-shaped profile wire design offers a self-cleaning effect, minimizing clogging and reducing maintenance downtime. Each filter is made from high-quality 304 stainless steel, providing excellent corrosion resistance in various water conditions. Backed by our factory’s annual export value of US$5-10 million and a global customer base spanning North America, Europe, Asia, and beyond, you can trust the quality and consistency of our products. Let’s dive into the detailed specifications and features that make this filter a top choice for water treatment professionals.
Key Features & Technical Specifications
- Material: 304 Stainless Steel – excellent corrosion resistance, suitable for potable water, industrial water, and mild chemical environments.
- Slot Width: 0.5mm – precise filtration for fine particles, ideal for sand removal, sediment control, and polishing stages.
- Outer Diameter (OD): 25mm – compact size for easy installation in pipelines, filter housings, or well screens.
- Length: 1000mm (1 meter) – standard length, with customizable lengths available upon request.
- Wedge Wire Profile: V-shaped continuous slot design – provides a smooth inner surface, reduces pressure drop, and enhances backwash efficiency.
- Slot Opening Tolerance: ±0.03mm – ensures consistent filtration performance across the entire screen.
- End Connections: Options include threaded ends (NPT/BSP), flanged ends, or plain ends for welding – customizable to fit your system.
- Surface Treatment: Pickled and passivated as standard, removing welding oxides and improving corrosion resistance.
- Strength: High structural integrity due to continuous spiral winding and longitudinal support rods – withstands high pressure and mechanical stress.
| Parameter | Value |
|---|---|
| Material Grade | 304 Stainless Steel (1.4301) |
| Slot Width | 0.5 mm |
| Outer Diameter | 25 mm |
| Length | 1000 mm (1 meter) |
| Open Area | Approximately 30–40% (depending on slot/pitch ratio) |
| Max Operating Temperature | Up to 400°C (in non-corrosive environment) |
| Filtration Efficiency | ≥ 99% for particles larger than 0.5mm |
| Standard Packaging | Wooden case or pallet, with foam protection |
Advantages & Customer Benefits
- Self-Cleaning Capability: The V-shaped wedge wire design allows particles to be easily flushed away during backwashing, reducing clogging and extending service intervals.
- High Flow Rates: The continuous slot construction provides a large open area, enabling higher flow rates compared to perforated or mesh screens of the same diameter.
- Corrosion Resistance: 304 stainless steel is well-suited for a wide range of water pH levels (4.5–8.5) and resists rust, making it ideal for long-term use in water treatment plants.
- Mechanical Strength: The robust construction with support rods ensures the filter can withstand high differential pressures and physical impacts during installation or operation.
- Customizable Dimensions: We offer custom lengths, diameters, slot widths, and end connections to match your specific filtration requirements. Just provide your specifications.
- Consistent Slot Accuracy: Our automated winding machines guarantee uniform slot width along the entire length, ensuring reliable filtration performance.
- Easy Integration: The compact 25mm OD allows for easy installation into existing filter housings, well screens, or as a retrofit element.
Trust & Quality Assurance
Established in 1998, Anping County Boli Hardware Wiremesh Products Factory is a professional manufacturer with decades of expertise in wire mesh and filtration products. Our annual export value of US$5–10 million reflects our strong presence in international markets, including North America, Europe, South America, Southeast Asia, Africa, the Middle East, and Oceania. We ship from major Chinese ports such as Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide.
Every Johnson wedge filter is subjected to strict quality control checks – from raw material inspection to dimensional verification and slot width measurement. We use precision gauges to ensure the 0.5mm slot tolerance is maintained. Our factory’s location in Hengshui, Hebei, gives us access to a mature supply chain and skilled workforce, allowing us to offer competitive pricing without compromising quality.
We invite you to partner with a reliable manufacturer who understands your water treatment needs. Whether you require a single sample or bulk orders, we are ready to provide customized solutions and technical support. Contact us today to discuss your project and request a quote.
Frequently Asked Questions (FAQ)
-
What is the typical application of a 0.5mm slot Johnson wedge filter?
This filter is commonly used for fine sand removal in groundwater wells, pre-filtration in reverse osmosis systems, dewatering of industrial slurries, and as a protective screen for pumps. The 0.5mm slot effectively retains sand, silt, and other particulates. -
Can I get the filter with different end connections?
Yes, we offer threaded ends (NPT/BSP), flanged ends, and plain ends for welding. Please specify your requirement when ordering. -
How does the wedge wire filter differ from a wire mesh screen?
Wedge wire screens have a continuous V-shaped slot that provides a smooth inner surface, reducing clogging and allowing easier backwashing. They are stronger and more durable than woven mesh, especially for high-pressure or abrasive applications. -
Is the 304 stainless steel suitable for seawater?
304 stainless steel has good corrosion resistance in freshwater and mildly saline environments, but for seawater or high-chloride conditions, we recommend 316L stainless steel. Please contact us for alternative material options. -
What is the maximum working pressure for this filter?
The working pressure depends on the end connection and support structure. For a standard 25mm OD filter with plain ends, it can typically withstand up to 10 bar (145 psi). For higher pressures, we can reinforce the design. -
How do I clean the filter?
The filter can be cleaned by backwashing with water or air, or by chemical cleaning if necessary. The V-shaped profile allows particles to be easily dislodged from the slots. -
Do you provide samples before mass production?
Yes, we offer sample orders for evaluation. Sample lead time is usually 5–7 working days, and mass production time depends on quantity. -
What is your minimum order quantity (MOQ)?
Our MOQ for standard sizes is 50 pieces. For custom sizes, please discuss with our sales team.
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