현대밸브

KOREA

Dual Filter Gate

제품개요
Product specifications
Size 200A ~ 1,000A
 . Adjustable filter mesh specifications to suit on-site needs
 . Separate consultation required for 1,100A or more
Product Use  Various water and sewage facilities requiring filtration
Material Body & Gate : GCD450, SSC13, SSC16
Product Features
  • This device removes larvae and foreign substances that may be introduced during the tap water production process. It is a product that can filter foreign substances without stopping water production at the water purification plant through an automatic operation system, and can be easily maintained with an automatic cleaning system built into the main body.
  • Even in a waterless state, cleaning or replacement is possible by switching operation when the filter net is clogged.
  • You can set the cleaning cycle by installing a pressure gauge to measure the pressure difference.
  • More precise filtration is possible when operating two units simultaneously by applying different meshes to each filter net.
  • Since two units are operated in conjunction, operation is possible for the remaining period of time in case of an abnormality, making operation management smooth.
  • In case of emergency, both units can be opened to operate the water purification plant.
  • When a dual filter gate cleaning panel is applied, high-temperature water cleaning is possible, allowing for immediate elimination and cleaning of live larvae.
Product Certification
  • Water supply suitability certification No. KWTC-CP-2021-011_Strainer
  • Hygiene and Safety Standard Certification (KC Certification) KCW-2024-0054_Water Filter Device
  • Public Procurement Service Excellent Product Designation 2025004
  • Public Procurement Service Venture Nation Designation No. 2023-08-0107
  • Performance Certification 23-AAD0069
  • Excellent Product Priority Purchase Recommendation Certification No. 2025-5032
Fitting Method Flange
Drive unit Electric
Patent
  • No. 10-2527734 Gate-type automatic cleaning dual filter precision filter▪ Filter gate valve No. 10-2226300
  • Filter gate with rotary washing device No. 10-2782907
  • No. 10-2638766 Automatic cleaning system and method for filtering device for removing foreign substances in water purification plant
  • Filter gate with improved filtration performance and easy filter replacement structure No. 10-2338865
  • No. 10-2401453 Filter cleaning device with enhanced cleaning efficiency
  • No. 10-2610136 Cleaning device for filter assembly for removing larvae in water purification plant and cleaning method using the same
Daul Filter Gate Operation
    ① ​After initial installation, during initial operation, one door is open and the rest remain closed. 
    ② ​When the set replacement operation cycle arrives, the open filter gate closes.
    ③ The closed filter gate opens. ​
    ④​ At this time, the two filter gates are temporarily kept closed.
    ⑤ Washing is performed on the front of the filter by rotating the fan nozzle.
    ⑥ The filter gate with the cleaned filter mesh is left to stand until the replacement cycle arrives.
    ⑦ When the replacement driving cycle comes again, drive in the same way.
    ⑧ Even if the replacement cycle has not arrived, if the differential pressure across the dual filter gate exceeds the set value, the filter gate will operate as if the replacement cycle has arrived.
    ⑨ The filter mesh of the filter gate in standby mode is always kept clean.
시공성
    ① ​It has excellent connectivity with existing water treatment facility piping through the flange connection method, and has a shorter inter-face distance compared to general valves or structures. 
    ② ​The additional configuration of the Annanasik type, which does not raise the axis, eliminates the space required for axis elevation and can accommodate various on-site installation spaces.
    ③ It does not involve separate civil engineering work, and its constructability is excellent, minimizing the amount of modification to existing pipes, thus reducing construction time and costs.
Filter Module

    Rib
     
      Role in preventing mesh damage caused
      by sludge in the fluid.
    Main
    Mesh
      Made of stainless steel with excellent corrosion resistance, it is capable of precision filtration, and mesh specifications can be custom-made according to on-site conditions.
      Assistance
      Mesh
        The role is to protect the main mesh by preferentially filtering out large particles of foreign matter.
      Packing
        A sealing function to prevent larvae and foreign substances from passing through the gaps of the assembly using rubber material for water supply.
      Pleated filter features
      • WIRE filters inevitably suffer from flow loss due to wire diameter, so expansion work is required depending on the site.
      • It is a seamless, one-piece material, and can compensate for 100% of the flow loss due to the cross-sectional area being expanded by approximately 2.4 times compared to a flat filter.
      • Installation space, cost, and period can be reduced as expansion work is not required.
      Filter Cleaning technology
        ① ​Multiple fan-shaped nozzles with excellent spray concentration spray close to the filter to improve cleaning efficiency, and the nozzles can be rotated to clean
        the entire filter area.          
        ② ​A structure that detects the degree of blockage of the filter through pressure difference or water level difference, and automatically cleans by spraying high-
        pressure washing water of 5 bar or more from the spray nozzle when the gate is deployed.
        ③ ​Before the gate, a structure that blocks leakage of some fluids ejected from inside during the closing operation through a water-tight member-containing
        water barrier plate and discharges washing water and washing foreign substances into a drain.