VITHY® VMF Automatic Tubular Back-flushing Mesh Filter combines multiple standard filter units into an automatic filtration system.
The system is safe and can flexibly increase the number of in-line units according to the flow rate needs. The filter runs automatically, eliminating manual cleaning. It has high scalability, can be connected to high-pressure back-flush fluid, and works with low differential pressure. It adopts a high-precision wedge mesh filter element, which can be thoroughly back-flushed and consumes few liquids for backwashing. When filtering impurities that are difficult to deal with, it is easy to open the filter for maintenance if the filter mesh needs to be cleaned manually. The filter purifies fluids, protects key pipeline equipment, and can also recover expensive solid particles with its back-flush effluent. The filter is suitable for low-viscosity liquids, such as raw water, clean water, sealed water, wastewater, gasoline, heavy coking gasoline, diesel, slag oil, etc.
When the slurry passes through the filter unit, the particulate impurities in it are intercepted on the outer surface of the filter mesh, accumulating to form a filter cake, so that the differential pressure between the inlet and outlet of the filter unit gradually increases. When the pressure difference reaches the preset value, it indicates that the filter cake has reached a certain thickness. At this time, the filterable flow rate of the filter mesh is gradually decreasing. The control system initiates the back-flush action to back-flush from the inside of the filter mesh, taking away the impurities on the surface. External water can also be used for back-flushing.
● Only one additional filter unit is required as a backup for the entire system, with a low risk of downtime and low investment.
● Without interrupting filtration, the filter units can be maintained off-line one by one.
● The filter mesh is easy to take out and clean, making it ideal for filtering stubborn impurities that require regular manual cleaning.
● Back-flushing is done by valve switching. There is no complicated mechanical structure, making it easy to maintain.
● Continuous filtration during back-flushing, eliminating the need for system downtime and reducing downtime costs.
● The modular combination structure makes it easy to expand the filter. The filtration flow rate can be increased by adding several filter units.
● It adopts a wedge-shaped mesh gap type filter element, which is easy to clean thoroughly. It is extremely robust and durable.
● The filter introduces external fluid for back-flushing, which can be installed before or after the pump and is suitable for both low-pressure and high-pressure inlets.
● It adopts the modular combination of high-quality pneumatic ball valves, equipped with highly reliable instruments and control systems.
|
Parameters |
VMF-L3/L4/L5~L100 |
|
Maximum Flow Rate |
0-1000 m3/h |
|
Filtration Area |
0.1-100 m2 |
|
Applicable Viscosity |
<50 cps |
|
Impurity Content |
<300 ppm |
|
Minimum Inlet Pressure Required |
>0.3 MPa |
|
Installation Position |
Before / after the pump |
|
Filtration Rating (μm) |
30-5000 (Higher precision customizable) |
|
Standard Design Pressure |
1.0 / 1.6 / 2.5 / 4.0 / 6.0 / 10 MPa |
|
Design Temperature (℃) |
0-250 ℃ |
|
Number of Filter Units |
2-100 |
|
Filter Unit Back-flush Valve Size |
DN50 (2"); DN65(2-1/2"); DN80(3"), etc. |
|
Back-flush Differential Pressure |
0.07-0.13 MPa |
|
Alarm Differential Pressure |
0.2 MPa |
|
Inlet and Outlet Size |
DN50-DN1000 |
|
Inlet and Outlet Connection Standard |
HG20592-2009 (DIN compatible), HG20615-2009 (ANSI B16.5 compatible) |
|
Filter Element Type and Material |
Wedge mesh, material SS304/SS316L/SS2205/SS2207 |
|
Wetted Material of Housing |
SS304/SS316L/SS2205/SS2207 |
|
Sealing Material of Housing |
NBR/EPDM/VITON |
|
Fluid Control Valves |
Pneumatic ball valve, seat material PTFE |
|
Common Supply Requirements |
220V AC, 0.4-0.6MPa clean and dry compressed air |
|
Control System |
Siemens PLC, operating voltage 220V |
|
Differential Pressure Device |
Differential pressure switch or differential pressure transmitter |
| 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: Paper, petrochemical, water treatment, automotive industry, metal processing, etc.
● Fluid: Water treatment raw water, process water, clean water, ultra-clean white water, cooling circulating water, spray water, water injection water; Petrochemical diesel, gasoline, naphtha, FCC slurry, AGO atmospheric pressure gas oil, CGO coking wax oil, VGO vacuum gas oil, etc.
