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Pfhf wsdc-k smoke exhaust fire damper (rectangular)

  Number of main technical signatures

  1. Operating temperature of fuse: 280 ℃; 2. Fire resistance rating of valve: 1.5h;

  3. The gas static pressure difference of 300pa ± 15pa shall be maintained on both sides of the fire damper blade, and the air leakage per unit area shall be less than or equal to 500mv / (m2. H); 4. Control voltage: DC24V / action time: resistance coefficient at instantaneous full opening: < 0,5. Structure: 1 Main components: valve body, blade, temperature sensor and actuator;

  2. The thickness of rectangular valve body: l = 220mm, the valve flanges are all made as common plate flanges, and the flange width is 35mm.

  Performance; It is normally open. When the flue gas temperature in the pipeline reaches 280 ℃, the temperature sensor acts, the valve closes automatically, and the valve resets manually after action.