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Top Quality Plastic Water Cartridge Purifier, High Pressure for Water Dispenser
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Product: Views:50Top Quality Plastic Water Cartridge Purifier, High Pressure for Water Dispenser 
Unit price: Negotiable
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-12-01 18:16
Model Number: 3" super filtration systen Brand Name: Duoling Key Specifications/Special Features: SpecificationsCondition: newType: disc filter, disc filterMedium material: PPPlace of origin: Jiangsu, China (Mainland)Brand name: DuolingModel number: water filterVoltage: 220VPower: 200WCertification: ISO 9001: 2008
Warranty: one year
Usage: liquid filter
Material: plastic
Size: 3”compact; 3"; 3” super
Accuracy: 5um-800um
OEM: yes
Manufacturer: yes
Auto backwash: yes
Working principle of exogenous backwash system
The water to be treated comes from the inlet pipe to the two-position three-way valve on the inlet side. Under control of the valves, the water goes through each disc filter unit while the system is doing the filtration process. Water after filtering comes from inside of each filter unit to the two-position three-way valves on the outlet side. Under control of the valves, the water goes to the outlet pipe.
When the filter units gather more impurities and the pressure difference reaches the setting value or the system reaches the setting time,the system will shift to backwash mode. For example, if the PLC gives a signal to two-position three-way valves on both sides of the first filter unit, the valve on the inlet side will close the inlet port and open the drain port, while the outlet side valve will close the outlet port and open the backwash port. Backwash water comes into the filter and brings the dirty to the drain port. After backwash the unit will come back to filtration mode. The system will make the filter unit do backwash one by one.
When one unit is under backwash mode, others can still keep filtration state.
Working principle of filtration state:
Water to be treated comes from the inlet port into the surface of the disc cartridge. Since discs are tightly pressed by the spring on the top of the filter cartridge, with the water going into the inside of the disc cartridge, the impurity will be trapped on the intersection of discs.
After that the clean water comes out from inside of the filter to the outlet port.
Backwash State:
When the pressure difference reaches the setting value or the system reaches the setting time, the system will automatically enter the backwash mode. The PLC controls the valve and changes the water flow direction.
Backwash water comes from the outlet port, and closes the one-way diaphragm on the bottom of the disc cartridge.
Then the backwash water can only go through from nozzle channels on the interior center of the cartridge. High pressure of the nozzle channels tightens the spring and loses discs, meanwhile the backwash water squirts out from the channel along the tangent direction of discs and rotates and separates discs evenly, taking the impurities away from the discs. After backwash state, water flow direction changes and discs are pressed again, and the filter will enter filtration state
Size 3" Compact 3" 3"Super 4"
Material PA6housing,PP disc, ss304 spring
Micron(um) 10,20,30,50,80,100,120,150,200,300,400,500,600,800
Dimension 610mm*320mm 725mm*320mm 800mm*320mm 810mm*520mm
Type Auto/manual Manual Auto/manual Auto
Shipping Information:
  • FOB Port: Shanghai
  • Lead Time: 10 - 15 days
  • HTS Code: 8421.21.99 90
    Main Export Markets:
    • Asia
    • Australasia
    • Central/South America
    • Eastern Europe
    • Mid East/Africa
    • North America
    • Western Europe