VITHY® VSRF Automatic Back-flushing Mesh Filter is a new generation of back-flushing filtration system independently developed and designed by VITHY®, with multiple wedge mesh filter cartridges integrated inside.
VSRF filter has outstanding advantages that distinguish it from ordinary mesh self-cleaning filters: 1) Extremely robust wedge-shaped mesh filter cartridges with uniform surface gap width. 2) Ultra-large filtration area, which can reduce the surface flow speed. 3) The flow rate can reach 8000m3/h, with extremely high reliability. 4) It can treat poor-quality water, such as water with oily sludge-like impurities, soft and viscous impurities, high-content impurities, and a small amount of hair and fiber impurities.
The filter can filter out solid particulate impurities in various water and low viscosity liquids to meet the requirements of liquid cleanliness in system operation and pipeline process. It can also be used to protect key equipment downstream from particle blockage, wear and scaling, improve the operating efficiency and extend the service life of key equipment.
The filter is an advanced solution for water and aqueous liquid filtration with automatic in-line continuous filtration and reduced downtime, maintenance, and labor costs.
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 impurities in the filter accumulate on the surface of the filter cartridges, causing the pressure difference between the inlet and outlet to increase to the set value, or when the timer reaches the preset time, the electric control box sends a signal to drive the back-flushing mechanism. When the back-flushing suction cup port is opposite the inlet of the filter cartridge, the sewage valve opens. At this time, the system relieves pressure and discharges, and a negative pressure area with a pressure relatively lower than the water pressure on the outside of the filter cartridge appears on the inside of the suction cup and the filter cartridge, forcing part of the clean circulating water to flow into the inside of the filter cartridge from the outside of it. And the impurities adsorbed on the inner surface of the filter cartridge are back-flushed into the tray with the water and discharged from the sewage valve. The specially designed filter mesh produces a spray effect inside the filter cartridge, and any impurities will be washed away from the smooth inner surface. When the pressure difference between the inlet and outlet of the filter returns to normal or the timer setting time ends, the motor stops running and the electric sewage valve closes. In the whole process, the slurry flows continuously, the back-flushing consumes little water, and continuous and automated production is achieved.
● Automatic continuous in-line filtration, uninterrupted flow during back-flushing, reduced downtime and maintenance costs.
● Large filtration area, low surface flow rate, low pressure loss and energy consumption, fine filtration, low back-flush frequency, saving back-flush water.
● High-performance filter cartridge, precise filtration gap, efficient back-flushing, high-strength structure, service life of more than 10 years.
● Pulse type back-flush, align the filter cartridge and then open the sewage valve to back-flush; high back-flush strength with good effect, short time, and little water consuming.
● Water enters at both ends of the filter cartridge at the same time, increasing the throughput of the filter cartridge. The free flow of water delays surface blockage and avoids blocking at one end of the filter cartridge.
● Compact design, a single filter can achieve ultra-large flowrate filtration, significantly saving installation space and construction costs.
● Highly integrated, no need for a large number of automatic valves, connectors, and seals; low operating and maintenance costs.
● The automatic control system is highly reliable. The interface is intuitive and easy to operate. And the filter can be controlled to filter efficiently according to the actual working conditions.
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Main Performance Parameters |
SRF400 |
SRF500 |
SRF600 |
SRF700 |
SRF800 |
SRF900 |
SRF1000 |
SRF1100 |
SRF1200 |
SRF1300 |
SRF2000 |
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Filtration Area (m²) |
1.334 |
2.135 |
3.202 |
4.804 |
7.206 |
9.608 |
10.676 |
12.811 |
14.412 |
16.014 |
29.359 |
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Filtration Rating (μm) |
25-5000 (Higher precision customizable) |
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Reference Flow Rate (m³/h) |
130 |
210 |
350 |
600 |
900 |
1200 |
1350 |
1700 |
1900 |
2200 |
3600 |
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Maximum Operating Temperature (℃) |
200 |
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Operating Pressure (MPa) |
0.2-1.0 |
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Inlet/Outlet Connection Method |
Flange |
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Inlet/ Outlet Diameter (DN) |
Customizable |
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Sewage Outlet Diameter (DN) |
50 |
50 |
80 |
80 |
100 |
100 |
100 |
125 |
125 |
125 |
150 |
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Motor Reducer |
180/250/370/550/750/1100/1500W, 3-phase, 380V motor or explosion-proof motor |
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Pneumatic Sewage Ball Valve |
Double-acting actuators, 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 Stainless steel control box or Explosion-proof control box |
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| Note: The flow rate is for reference (150 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: Water treatment, papermaking, steel, mining, petrochemical, machining, municipal, agricultural irrigation, etc.
● Fluid: Groundwater, seawater, lake water, reservoir water, pond water, circulating cooling water, chilled water, high/low pressure spray water, water injection water, heat exchanger water, seal water, bearing cooling water, oil well injection water, process circulating water, machining coolant, cleaning agent, cleaning water, etc.
● Main filtration effect: Remove large particles; purify fluids; protect key equipment.
● Filtration type: Back-flushing filtration; automatic continuous in-line filtering.
