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Help CenterStainless Steel Johnson Wedge Filter for Water Treatment Plant, 304 SS, 0.2mm Slot, Anti-Clogging Design
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer with over 25 years of experience since 1998. Our Stainless Steel Johnson Wedge Filter is engineered specifically for water treatment plants, offering a reliable and durable solution for solid-liquid separation. Made from premium 304 SS with a precise 0.2mm slot, this filter features an anti-clogging design that ensures consistent flow and minimal maintenance. As a factory with annual export value of US$5–10 million, we deliver high-quality products to global markets including North America, Europe, and Southeast Asia.
Our Johnson wedge filter is constructed using resistance-welded wedge wire, creating a continuous V-shaped slot that prevents particle entrapment. The 0.2mm slot width provides excellent filtration efficiency while maintaining high flow rates. Available in various diameters and lengths, this filter can be customized with flanges, threaded ends, or welded connections to suit your specific system requirements.
Key Features & Benefits
- Premium Material: Made from 304 stainless steel, offering excellent corrosion resistance and long service life in water treatment environments.
- Precision Slot Width: 0.2mm slot ensures accurate filtration of fine particles while minimizing pressure drop.
- Anti-Clogging Design: V-shaped wedge wire profile and continuous slot structure prevent particles from wedging, reducing cleaning frequency.
- High Strength & Durability: Resistance welding creates a robust structure that withstands high pressure and backwashing cycles.
- Customizable Specifications: Diameter, length, slot size, and connection type can be tailored to your application.
- Low Maintenance: Smooth surface and self-cleaning geometry reduce downtime and operational costs.
Technical Specifications
| Parameter | Value |
| Material | 304 Stainless Steel (Others: 316L, 2205 optional) |
| Slot Width | 0.2mm (Custom: 0.1mm – 6mm available) |
| Outer Diameter | 25mm – 300mm (customizable) |
| Length | Up to 6 meters per piece (custom) |
| Connection Type | Flange, Threaded (NPT/BSP), Welded, or Custom |
| Operating Temperature | Up to 400°C (depending on gasket) |
| Surface Finish | Pickled & Passivated, or Polished |
Our Johnson wedge filter is widely used in water treatment plants for applications such as sewage treatment, industrial water filtration, desalination pre-treatment, and groundwater dewatering. The anti-clogging geometry ensures consistent performance even with high solids loading, and the 304 SS material offers excellent resistance to chlorides and other chemicals commonly found in water.
Why Choose Anping Boli?
With 25+ years of manufacturing expertise, we have supplied millions of wedge wire filters to customers worldwide. Our factory is located in Hengshui, Hebei – the wire mesh capital of China. We maintain strict quality control from raw material selection to final inspection. Annual export value of US$5–10 million reflects our global trust. We ship via Tianjin, Qingdao, Shanghai, and Foshan ports, ensuring timely delivery to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more.
We are committed to providing customized solutions for your specific water treatment needs. Our technical team can assist in filter design, slot size optimization, and connection selection. Contact us today for a quote or to discuss your project requirements. Experience the reliability of Boli wedge filters!
Frequently Asked Questions (FAQ)
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Q: What is the difference between a Johnson wedge filter and a conventional wire mesh screen?
A: A Johnson wedge filter uses a continuous V-shaped profile wire welded onto support rods, creating a self-cleaning slot that resists clogging. Conventional wire mesh has intersecting wires that can trap particles, leading to frequent blockages. Our design is ideal for water treatment where reliability is critical. -
Q: Can you customize the slot width to smaller than 0.2mm?
A: Yes, we can manufacture slot widths from 0.1mm up to 6mm. Please specify your required filtration micron size and we will advise the optimal slot width. -
Q: What is the maximum operating pressure for this filter?
A: The pressure rating depends on the diameter, wall thickness, and support structure. Typically, our standard filters can handle up to 10 bar (150 psi). For higher pressures, we can reinforce the design. Please provide your system pressure for a customized solution. -
Q: How do you ensure the 0.2mm slot is consistent across the entire length?
A: We use precision winding and resistance welding machines with automated controls. Each filter is inspected with slot gauges and a go/no-go tool to ensure tolerance within ±0.02mm. -
Q: Is this filter suitable for backwashing?
A: Absolutely. The V-shaped wedge wire design allows trapped particles to be easily dislodged during backwashing. The robust welded structure withstands repeated backwash cycles without deformation. -
Q: What are the available connection types?
A: We offer flanged ends (ANSI, DIN, JIS), threaded male/female (NPT, BSP), welded stubs, and custom connections. You can also specify grooved ends for coupling. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 10 pieces. For custom specifications, MOQ is typically 50 pieces. We also offer sample orders for evaluation. -
Q: How long is the delivery time?
A: For standard products, delivery is 15–20 days after order confirmation. Customized orders may require 25–35 days depending on complexity. We ship from Tianjin, Qingdao, Shanghai, or Foshan ports.
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