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  • PFHF WS-K 排烟防火阀(矩形).jpg

PFHF WS-K rectangular smoke exhaust fire damper

Main components: valve body, valve disc, shaft, bushing, fuse, inspection port, actuator. The valve body and disc are made of high-quality galvanized steel plate, which has the advantages of beautiful appearance, good corrosion resistance, and long service life.
  • Commodity name: PFHF WS-K rectangular smoke exhaust fire damper

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  • Product Description
  • Technical parameters
  •  PFHF WS-K Rectangular Smoke Exhaust Fire Damper

     

    ● Main components: valve body, valve blade, shaft, bushing, fuse, inspection port, actuator
    ● The valve body and blades are all made of high-quality galvanized steel plate, which has the advantages of beautiful appearance, good corrosion resistance, and long service life.
    ● The valve combination adopts the internationally advanced sheet metal connection technology - TOX weld-free connection technology.
    ● A V-shaped anti-slip structure is designed between the blade and the rotating shaft to ensure that the blade does not slip or loosen under high wind speed.
    ● The blade rotating bearing and connecting rod rotating bearing both use oil-containing copper powder metallurgy bushings, requiring no oiling, ensuring permanent lubrication.
    ● Normally open, when the air flow temperature in the pipeline reaches 280℃, the fuse will act and the valve will automatically close.
    ● The valve can be manually opened and closed, and manually reset after the valve action.
    ● The valve has six levels of air volume opening.
    ● The valve closing signal can be output.
    When W≥1250, add an intermediate frame and separate the blades.
    When H≥1500, install 2 actuators.
  • Air leakage < pressure difference 300Pa> ≤500m3/m2  •h
    Valve fire rating 1.5h
    Fuse operating temperature 280 ℃
    Control voltage DC 24V
    Operating current 0.3A
    Microswitch contact capacity AC 380V 3A
    Resistance coefficient at full opening <0.5

     

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