Disc Filter
Disc Filter Suppliers
As supplier of disc filter in China, we provide automatic self-cleaning disc water filter. Thin color-coded polypropylene discs are diagonally grooved on both sides to a specific micron size. A series of these discs is then stacked and compressed on a specially designed spine. When it is stacked, the groove on top runs opposite to the groove below, creating a filtration element with a statistically significant series of groove and shoulder, which trap the solids. The stack is enclosed in a corrosion proof and pressure resistant housing. During the filtration process, the filtration discs are tightly compressed together by the spring’s power and the differential pressure, thus providing high filtration efficiency. Filtration occurs while water is percolates from the outer diameter to the inner diameter of the element. Depending on the micron rating, there are 18 (in 400micron discs) to 32 (in 20 micron discs) stopping points in each track, thus creating the unique in-depth filtration.
The Material of the Disc Filter
- The filter shell: Rain-forced nylon, PP, stainless steel, carbon steel
- The filter element: Nylon, PP
- Filter disc: Nylon, PP
- The flush valve: Reinforced nylon
- The solenoid valve: Brass
- The exhaust valve: Reinforced nylon
- Piping system: Carbon steel
- Control line and connector: PP
2 Inch Disc Filter
Technical Data of 2 Disc Filter
- Filter unit: 2” Max flow rate: 20M3/h
- Working pressure: 0.2-1Mpa(3psi-15psi)
- Pressure loss(bar): 0.08-0.8bar (1.2psi-12psi)
- Back wash pressure(bar): ≧2.8bar (75psi)
- Accuracy(um): 20um,55um,70um ,100um,130um,200um,400um
- Material: reinforced nylon, PP
- Backwashing time: 10-20seconds
- Backwash flow rate: 8.11m3/h×1 Filter area: 1760cm3
- Input and output connector:2” NPT, Clamp
- Dimension:490mm*290mm*200mm
- Weight: 6kg
Reference Table of Flow Rate per Unit Disc Filter 2 Inch
| Unit size | Accuracy （um） | Backflush Flow Rate （M³/h) | Flow rate(（M³/h) | |||
|---|---|---|---|---|---|---|
| Water with Good Quality | Water with General Quality | Water with Poor Quality | Water with Very Poor Quality | |||
| 2 inch | 130-400 | 8--11 | 25 | 19 | 13 | 8 |
| 100 | 20 | 15 | 10 | 6.5 | ||
| 55,70 | 14 | 11 | 7.5 | 5.5 | ||
| 40,20 | 6 | 5 | 3 | 2 | ||
Good quality：Urban tap water, well water that pump from the aquifar, turbidity is less than 3 degrees
General quality: Circulating cooling water, surface water that with effective precipitation processed ,
Generally well water, drainage after effective precipitation and complete biological treatment, TSS is
less than 30 mg/L
Poor quality:Underground water with poor quality,better quality surface water.TSS is less than 75mg/L
Very pool quality: Well water or surface water with very bad quality,drainage without precipitation or
biological treatment.In order to ensure the well working. The water need pre treatment
3 Inch Disc Filter
Technical Data of Disc Filter 3 Inch
- Filter unit:3”
- Max flow rate:30M3/h
- Working pressure: 0.2-1Mpa(3psi-15psi)
- Pressure loss(bar): 0.08-0.8bar (1.2psi-12psi)
- Back wash pressure(bar): ≧2.8bar (75psi)
- Max working temperature(℃): 70℃ (158℉)
- Accuracy(um): 20um,55um,70um ,100um,130um,200um,400um
- Material: reinforced nylon, PP
- Backwashing time: 10-20seconds
- Backwash flow rate: 8.11m3/h×2
- Filter area:1760cm3
- Input and output connector:3” clamp
- Dimension:865mm*320mm*200
Weight:6kg
Reference Table of Flow Rate per 3 Inch Disc Filter
| Unit size | Accuracy （um） | Backflush Flow Rate （M³/h) | Flow rate(（M³/h) | |||
|---|---|---|---|---|---|---|
| Water with Good Quality | Water with General Quality | Water with Poor Quality | Water with Very Poor Quality | |||
| 3 inch | 130-400 | 16--22 | 38 | 30 | 22 | 15 |
| 100 | 30 | 22 | 16 | 11 | ||
| 55,70 | 20 | 16 | 12 | 9 | ||
| 40,20 | 10 | 8 | 6 | 4 | ||
Good quality：Urban tap water, well water that pump from the aquifar, turbidity is less than 3 degrees
General quality: Circulating cooling water, surface water that with effective precipitation processed ,
Generally well water, drainage after effective precipitation and complete biological treatment, TSS is
less than 30 mg/L
Poor quality:Underground water with poor quality,better quality surface water.TSS is less than 75mg/L
Very pool quality: Well water or surface water with very bad quality,drainage without precipitation or
biological treatment.In order to ensure the well working. The water need pre treatment
4 Inch Disc Filter
Technical Data of 4 Inch Disc Filter
- Filter unit:4”
- Max flow rate:100M3/h
- Working pressure: 0.2-1Mpa(3psi-15psi)
- Pressure loss(bar): 0.08-0.8br (1.2psi-12psi)
- Back wash pressure(bar): ≧2.8bar (75psi)
- Max working temperature(℃): 70℃ (158℉)
- Accuracy(um): 20um,55um,70um ,100um,130um,200um,400um
- Material: 304Stainless steel, Carbon steel
- Backwashing time: 10-20seconds
- Backwash flow rate: 8.11m3/h×5
- Filter area:4400cm3
- Input and output connector:4” clamp
- Dimension:605mm*514mm*450mm
Reference Table of Flow Rate per 4 Inch Disc Filter
| Unit size | Accuracy （um） | Backflush Flow Rate （M³/h) | Flow rate(（M³/h) | |||
|---|---|---|---|---|---|---|
| Water with Good Quality | Water with General Quality | Water with Poor Quality | Water with Very Poor Quality | |||
| 4 inch | 130-400 | 40--55 | 100 | 75 | 50 | 35 |
| 100 | 90 | 70 | 45 | 30 | ||
| 55,70 | 55 | 45 | 30 | 20 | ||
| 40,20 | 25 | 15 | 10 | |||
Good quality：Urban tap water, well water that pump from the aquifar, turbidity is less than 3 degrees
General quality: Circulating cooling water, surface water that with effective precipitation processed ,
Generally well water, drainage after effective precipitation and complete biological treatment, TSS is
less than 30 mg/L
Poor quality:Underground water with poor quality,better quality surface water.TSS is less than 75mg/L
Very pool quality: Well water or surface water with very bad quality,drainage without precipitation or
biological treatment.In order to ensure the well working. The water need pre treatment
The Advantage of Disc Filter
- Super-speed and back washing
- Stable filtration efficiency with different precision（20um、40um、55um、100um，130um、
200um、400um） - Technical characteristics of accurate filtering and continuous filtration
- Easy operation and assembling, low cost of maintenance
Composition of Disc Filter
Disc Filter Working Principle
- The discs are compressed together by both the spring and the pressure difference on the tightening cap, forming a sturdy filter element preventing solids breakthrough.
- Inlet water flows into the filter through the filter element
- The suspended solids in the water are trapped on and between the discs
Disc Filter Back Washing Process
- A command from the control unit to the filter’s inlet valve causes the valve to close the filter inlet and open the drain.
- Filtered outlet water enters from the opposite direction through the outlet port of the filter.
- The flaps of the membrane are opened by the water pressure, allowing the water to flow only into the 3 flushing pipes.
- The water is forced through nozzles built into the flushing pipes.
- Water from the flushing pipes also flows into the piston and pushed the tightening cap up, decompressing the filtration element discs.
- Tangential jets of water cause fast spinning of the separated discs and remove the trapped
solids. - The solids are flushed from the filter to the drain.
Disc Filter Application
| Application | Description | Function | Industry |
|---|---|---|---|
| Circulating cooling water treatment | Cooling water equipment, instruments and products | It can solve the blockage problem effectively and reduces energy consumption and dosing amount too and prevent from stopping caused by trouble and reduce the expense of system maintenance. | Steel and iron, power plant, petrochemical, plastic, running water primary filtration, machinery, etc. |
| Membrane water treatment | Membrane system protection | The purpose of protecting precision element of filter and prolonging its life can be reached. | Irrigation water filter treatment system |
| Water treatment | Spraying water treatment, protection granulated substance ponders, filter element, filter pocket, ion-exchange reactor, etc. | Save total amount of water used and improve the quality of water and reduce or avoid wastewater discharging directly to lead environmental pollution. | Electric power, chemical, automotive, paper-making and other industries |
| Seawater filtration | Pre-treatment of seawater desalination | Remove impurity and microorganism in seawater. The property of salt resistant and anti-corrosion of plastic filter is better than metallic filter with expensive cost. And prolong its life. | Water treatment, irrigation water filter treatment system |
| Other chemical fluid | Solvent, emulsion, etc. | Meet the production requirements. Protect equipment. | All industries |
| Drip irrigation filtration | Cotton, fruit trees drip irrigation filter | Protect drip outlet | Large areas of crops land |
