Wedge Wire Self Cleaning Filter
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Wedge Wire Self Cleaning Filter – Continuous Slot Construction & Large Filter Area

Wedge wire self cleaning filter is a filter element constructed of high quality V-shaped wedge wires and support wires. It is installed in automatic self cleaning filter housings to intercept suspended solids and particles in the fluid, reduce turbidity and remove system impurities, thus purifying water quality and achieving self cleaning. It features high pressure resistance, corrosion resistance, uniform slot size, large filter area and not easy to clog, and is widely used in the automatic self cleaning filters in petroleum, paper & pulp, chemical, natural gas, food, and water treatment industries.

Wedge wire self cleaning filters are made of stainless steel, Hastelloy or other alloys. We can choose the right filter material to perfectly match up with your filtration environments.

A wedge wire self cleaning filter is displayed.
Working Principle

The liquid enters the self cleaning filter and passes through the wedge wire screen inside to start the filtration process. Various dirt, particles in the liquid will build on gradually on the inner screen surface, and differential pressure gradually increases as well. When the differential pressure reaches the preset value, the control system will receive the signal, the self cleaning process begins. A part of filtered liquid (less than 1%) reenters the filter body, the motor drives the brush (scraper) to rotate to clean the screen and effectively remove the contaminants deposited on the screen surface. Meanwhile, the drain valve opens for discharging, the self cleaning process lasts about 12–18 seconds. During the entire self cleaning period, normal filtration part will be continuous with very low flow rate fluctuation.

The working principle diagram of wedge wire self cleaning filter

Flange top

Metal ring top

Cross bar top

Handle top

With Or Without Reinforcing Rings

Without reinforcing ring

With one reinforcing ring

With double reinforcing rings

With multiple reinforcing rings

  • Material: stainless steel (304, 316L, etc.), Hastelloy, etc.
  • Filter rating: 20–3000 μm
  • Filter construction: V-shaped wedge wire screen
  • Connection: flange, metal ring
  • Wedge wire (mm): 0.5 × 1.5, 0.75 × 1.5, 1 × 2, 1.5 × 2, 2 × 3, 2 × 4, 3 × 5
  • Support rod (mm): 1.5 × 2.5, 1.8 × 2.5, 2 × 3, 2 × 4, 3 × 5, 3 × 6, 3 × 10, 4 × 7
  • Working pressure: 0.25–2.5 MPa
  • Operating temperature: 0–65 °C
  • Self cleaning period: 12–18 seconds
Wedge wire self cleaning filter specification coding interpretation
Table 1: Specifications of Wedge Wire Self Cleaning Filter
Model Diameter (mm) Length (mm) Filter Area (m2)
BD-WSC-20-40 200 400 0.50
BD-WSC-30-60 300 600 1.13
BD-WSC-35-150 350 1500 0.6
BD-WSC-40-80 400 800 2.01
BD-WSC-50-100 500 1000 3.14
BD-WSC-60-120 600 1200 4.52
BD-WSC-70-140 700 1400 6.15
BD-WSC-80-160 800 1600 8.04
BD-WSC-90-180 900 1800 10.17
BD-WSC-100-200 1000 2000 12.56
Notes: Other specifications are available upon request.
  • High mechanical strength, can withstand large differential pressure
  • Continuous slot structure, large filter area
  • V-shape opening makes it easy cleaning and not easy to clog
  • Simple structure, easy removal
  • Continuous filtration without interrupting the production
  • Little water consumption during the cleaning period
Filtration Industries
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