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FHF WSDj-FK Fire Damper

  • Commodity name: FHF WSDj-FK Fire Damper

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  • Product Description
  • Technical parameters
  • Performance

    1、 Normally open, in case of fire, the smoke (temperature) sensor sends an electrical signal ( DC24V) to the control center, the motor in the actuator is energized, the valve automatically closes, and outputs a closed electrical signal.

    2、 The DC motor drives the reset after the valve action.

    3、 The valve can be manually closed and manually reset.

    4、 When the temperature rises to 70℃ ,the temperature sensor activates, and the valve automatically closes.

    5、 Action signals or reset signals are fed back to the control center and the starting interlock device.

    6、 The valve has six manual adjustments for airflow.

     

    Structure

    Main components: valve body, blade, shaft, bushing, temperature sensor, actuator, stainless steel spring plate, torsion spring, etc.

    Maximum valve size: 1250×800

    Matching actuator model: JFHF WSDj-FYK

    W×H matches the duct size, and the flange size is the same as the flange of the metal rectangular duct in national standard GB50234-2002.

     

    Conditions of use

    Static       Pressure: Below 1500Pa

    Maximum air velocity: 15 m/s

    Ambient temperature: -10℃~50℃

    Ambient humidity: Relative humidity 85 % or less

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    Main Technical Parameters

    Temperature Sensor Actuation Temperature: 70℃

    Valve Fire Rating: 1.5h

    Air Leakage (Pressure Difference 300Pa) ≤500m3/m2.h

    Control Voltage: DC24V

    Actuation Current: ≤0.7A

    Reset Current: ≤0.7A

    Microswitch Contact Capacity: AC220V 3A

    Rotation Direction: Counterclockwise closure during actuation

    Actuation Time: Instantaneous

    Reset Time: ≤12 seconds

     

    Circuit Diagram :

    Line 1: DC24V “+”

    Line 3: DC24V “+”

    Line 5: Signal Line

    Line 6: DC24V “-”

    Precautions

    1. Users should not paint the outside of the actuator or add oil to the electrical components, as this may cause malfunctions.

    2. Fire dampers are critical for life safety and must be installed and commissioned by qualified personnel. Regular checks of opening, closing, electrical signal operation, and temperature sensor function should be performed every six months during normal use.

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