Industrial Wedge Wire Filter Nozzles
High-precision V-wire nozzles for uniform distribution and effective media retention. Built to outlast plastic alternatives in high-pressure and high-temperature environments.
High-Efficiency Media Retention & Distribution
Our Wedge Wire Filter Nozzles (also known as screen nozzles) are an economical and reliable solution for water treatment underdrain systems. Unlike standard plastic nozzles, our stainless steel 304/316L nozzles offer exceptional resistance to heat, pressure, and chemical corrosion.
- Continuous Slot: Provides a large open area for high flow rates and low pressure drop.
- Non-Clogging: The V-shaped wire profile prevents particles from getting stuck.
- Structural Integrity: Can withstand high backwash pressures without deformation or breakage.
Nozzle Types
Single Head Nozzle
Standard for filter floors and lateral piping.
Double Head Nozzle
High flow capacity for intensive filtration.
Long Neck Nozzle
Designed for air-water backwash systems.
Plate-Mounted Nozzle
For direct installation on filter plates.
Key Applications
Sand Filters
Efficient water collection and uniform backwash distribution.
Ion Exchange
Retention of expensive cation/anion resins in demineralizers.
Carbon Filters
Prevents carbon fines from entering the treated water stream.
Pressure Vessels
Used in the false bottoms of large industrial filtration tanks.
Key Technical Specifications
Specification | Standard Options |
Material | SS 304, 316, 316L, 321, 904L, Duplex 2205 |
Slot Sizes | 0.05mm, 0.10mm, 0.20mm, 0.50mm (Customizable) |
Thread Sizes | M20, M24, M27, M30, G1/2″, G3/4″, NPT, etc. |
Standard Lengths | 50mm, 80mm, 100mm, 150mm (Customizable neck) |
Flow Rate | 0.25 – 5.0 m³/h per nozzle (Typical) |
End Fittings | Threaded nipple, Nut & Gasket, or Flanged |
Why Wedge Wire vs. Plastic?
- Life Span: Stainless steel lasts 10-15+ years vs. Plastic (2-3 years).
- Temperature: Handles up to 400°C vs. Plastic (max 60-80°C).
- Maintenance: Low risk of "nozzle failure" (breaking during backwash) which leads to resin loss.
- Accuracy: Slot size remains constant over time; plastic slots can distort under pressure.
Frequently Asked Questions
The slot size should be approximately half the size of the smallest media grain to ensure no media loss while maximizing flow.
Yes, we manufacture nozzles with all standard international thread types, including NPT, G, and Metric (M-series).
Long neck nozzles are specifically designed for filters that use both air and water backwash, as they allow for a stable air cushion to form under the filter plate.