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Help Center304 Stainless Steel Wedge Wire Filter Johnson Type 0.5mm Slot for High Pressure Filtration
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As a leading manufacturer with over 20 years of experience (Anping County Boli Hardware Wiremesh Products Factory, established in 1998), we are proud to offer our premium 304 Stainless Steel Wedge Wire Filter in Johnson Type with a precise 0.5mm slot. This filter is specifically engineered for high-pressure filtration applications, delivering exceptional durability and consistent performance. Our factory exports to over 15 markets worldwide, including North America, Europe, and Asia, with an annual export value exceeding US$5 million. We understand the critical requirements of industrial filtration, and our Johnson Type wedge wire filter is designed to meet the highest standards of reliability and efficiency.
The 304 stainless steel construction ensures excellent corrosion resistance, making it suitable for aggressive fluids, high temperatures, and demanding environments. The unique wedge wire profile (V-shaped wire) creates a continuous slot opening that prevents clogging and allows for easy backwashing. This design maximizes the open area while maintaining structural integrity, resulting in lower pressure drop and higher flow rates compared to traditional mesh filters. Our Johnson Type filters are widely used in water treatment, oil & gas, chemical processing, food & beverage, and other high-pressure filtration systems.
Key Features & Technical Specifications
- Material: 304 Stainless Steel (also available in 316L, 904L upon request)
- Slot Width: 0.5mm (precision controlled within ±0.05mm)
- Profile: Johnson Type (continuous V-shaped wire wound on support rods)
- Connection Types: Threaded (NPT/BSP), Flanged, or custom ends
- Working Pressure: Up to 10 MPa (higher pressures customizable)
- Temperature Range: -20°C to +400°C
- Applications: High-pressure water, oil, gas, chemicals, brine, etc.
- Backwash Efficiency: Excellent due to smooth internal surface and slot geometry
- Lifespan: 5–10 years under normal conditions
| Parameter | Standard Value | Customization Range |
|---|---|---|
| Outer Diameter | 50 mm – 500 mm | Any size available |
| Length | 300 mm – 3000 mm | Up to 6000 mm |
| Slot Width Tolerance | ±0.05 mm | ±0.02 mm (precision) |
| Wire Thickness | 2.0 mm – 4.0 mm | Customizable |
| Support Rod Diameter | 3.0 mm – 6.0 mm | Customizable |
Our Johnson Type wedge wire filters are manufactured using advanced automatic welding machines to ensure uniform slot openings and strong bonding between wires and rods. Each filter undergoes strict quality control including pressure testing, slot calibration, and surface finish inspection. The result is a robust product that maintains its filtration efficiency even under cyclic high-pressure conditions.
Customer Benefits
- High Flow Capacity: The V-shaped slot design provides up to 40% more open area than conventional mesh filters, reducing energy consumption.
- Easy Cleaning: Smooth internal surfaces allow effective backwashing, minimizing downtime and maintenance costs.
- Long Service Life: 304 stainless steel resists corrosion and wear, even in aggressive chemicals and high-velocity flows.
- Custom Dimensions: We can tailor OD, length, end connections, and slot width to your exact specifications – no minimum order quantity for prototypes.
- Competitive Pricing: As a direct manufacturer, we offer factory prices without middlemen, saving you up to 30% compared to distributors.
With over 25 years of manufacturing experience and a dedicated R&D team, we have supplied wedge wire filters to thousands of clients across industries. Our products are exported from major Chinese ports (Tianjin, Qingdao, Shanghai, Foshan) with fast delivery times. We also offer free samples for testing and technical support for installation and maintenance.
Contact us today for a quote or to discuss your specific filtration needs. We are confident our 304 Stainless Steel Johnson Type Wedge Wire Filter will exceed your expectations.
Frequently Asked Questions
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Q: What is the difference between a wedge wire filter and a mesh filter?
A: Wedge wire filters use V-shaped wires wound on support rods, creating continuous slots. This design offers higher strength, better backwash efficiency, and less clogging compared to woven mesh, especially in high-pressure applications. -
Q: Can you make filters with a slot width other than 0.5mm?
A: Yes, we can produce slot widths from 0.02mm to 10mm. The 0.5mm is a standard option; custom slots are available upon request. -
Q: Is the filter suitable for seawater or brine filtration?
A: 304 stainless steel provides good corrosion resistance in freshwater and mild chemicals. For seawater or highly corrosive environments, we recommend 316L or 904L stainless steel, which we can also supply. -
Q: What is the maximum working pressure for this filter?
A: Our standard design handles up to 10 MPa (about 1450 psi). For higher pressures, we can reinforce the support rods and increase wire thickness – please provide your specific pressure requirements. -
Q: Do you offer samples before bulk order?
A: Yes, we provide free samples (customer pays shipping) for evaluation. Sample production takes 3–5 working days. -
Q: How do I determine the correct filter size for my system?
A: We recommend providing your flow rate, operating pressure, fluid viscosity, and allowable pressure drop. Our engineering team can calculate the optimal size and slot configuration for you. -
Q: What is the typical lead time for bulk orders?
A: For standard sizes, lead time is 10–15 days after deposit. Custom designs may take 20–25 days, depending on complexity. -
Q: Can the filter ends be customized for different connections?
A: Absolutely. We can provide threaded ends (NPT, BSP, etc.), flanged ends (ANSI, DIN, JIS), or plain ends for welding. Simply specify your connection type.
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