VITHY® VAS-A Automatic Self-cleaning Pneumatic Scraper Filter utilizes a cylinder-driven scraping mechanism to effectively eliminate particulate impurities from the inner surface of the filter mesh. The scraper ring, made of PTFE, helps remove these particles from top to bottom, and they are then discharged through the bottom sewage outlet. This filter works well in high impurity content and continuous uninterrupted production conditions as it has the capabilities to continuously filter inline and recover particulate impurities. Notably, it eliminates the need for filter consumables and reduces the frequency of manual cleaning requirements.
The filter takes in the raw material from the inlet and filters it through the mesh, where impurities are trapped on the inner surface. As impurities build up, the pressure difference between the inlet and outlet increases. When the pressure difference or a set time limit is reached, the cylinder activates the scraper ring to remove the impurities from the mesh. The removed impurities are then carried to the collection chamber along with the flow of water. The sewage system is automated and starts at regular intervals. Despite the impurity scraping and sewage discharge, the filter remains operational and continues to effectively filter the raw material.
● The filter operates automatically and self-cleans using PLC timing or differential pressure, keeping the filter mesh clean.
● It does not produce disposable filter consumables, saving consumables and environmental treatment costs.
● The wear-resistant PTFE scraper effectively removes impurities and extends the filter mesh's lifespan.
● The filter has a high-strength mesh with precise gaps and a smooth surface, allowing for easy impurity removal and long service life.
● The filtration has minimal pressure loss, stable flow rate, and low energy consumption, which is conducive to a continuous and stable process.
● It ensures safe production by providing sealed filtration to prevent material leakage.
● The discharged waste liquid impurities have a high concentration and can be recovered to avoid high-value materials loss.
● The filter offers various module combinations and automatic modes to meet different filtration requirements.
● It is equipped with a reliable motor reducer or pneumatic components and has an auxiliary lifting device for easy operation and long service life.
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Model |
A22 |
A39 |
A78 |
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Filtration Area (m²) |
0.22 |
0.39 |
0.78 |
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Filter Element |
SS304/316L Wedge mesh |
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Self-cleaning Method |
PTFE Scraper ring |
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Filtration Rating (μm) |
25-5000 (Higher precision customizable) |
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Reference Flow Rate (m³/h) |
3.9-24 |
5.8-45 |
10-92 |
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Maximum Operating Temperature (℃) |
200 |
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Operating Pressure (MPa) |
0.1-1.0 (Higher pressure customizable) |
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Volume (L) |
35 |
52 |
160 |
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Inlet/Outlet Connection Method |
Flange/snap |
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Inlet/Outlet Diameter (DN) |
Customized |
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Sewage Outlet Diameter (DN) |
40 |
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Motor Reducer/ Cylinder |
180/250/370/550W/750W, 3-phase, 380V motor or explosion-proof motor/Cylinder-driven |
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Pneumatic Sewage Ball Valve |
Double-acting actuator cylinder, 220VAC or 24VDC solenoid valve/explosion-proof solenoid valve, air supply requirement 5SCFM (m³/h)，pressure 0.4-0.8MPa |
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Differential Pressure Device |
A differential pressure switch or differential pressure transmitter is used for protection control. |
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Control Box |
220V Control box or Explosion-proof control box |
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Sealing Material |
EPDM/NBR/VITON/PTFE, etc. |
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| Note: The flow rate is for reference (100 μm). And it is affected by the viscosity, temperature, Filtration Rating, cleanliness, and particle content of the liquid. For details, please contact VITHY® engineers. | |||
Industry:
Petrochemical, fine chemicals, bioengineering, food, pharmaceutical, water treatment, paper, steel,.power plant, electronics, automotive, etc.
Fluid:
Water, fermentation broth, syrup, protein, corn steep liquor, soybean meal, culture medium, crude oil, mixed oil, methyl styrene, concentrated sulfuric acid, methanol, polymer, resin, printing ink, pigment, filler, paint, coating material, citric acid, soap, rubber, sorbitol, wet end chemical additives, adhesive, ethanol, chocolate, high-temperature oil, fruit juice, coolant liquid, diesel, kerosene, etc.
Main filtration effect:
Remove large particles; fixed value screening; purify fluids; protect key equipment.
Filtration type:
Scraping filtration; automatic continuous in-line filtering.
