Differential Pressure Sensors for Staircases in the Antechamber | High-rise Buildings Bypass Pressure Relief Valves Control pressure sensors, mainly used for pressure measurement and control between the front room and aisle (staircase and front room) of a high-rise building, to control the fire prevention of the front room and the walkway When the pressure difference between the two sides of the door reaches or exceeds 25~30PA, open the roof bypass pressure relief valve to relieve the pressure (40-50PA in the stairwell and the front room) to ensure that the escapee can open the fire door lightly and ensure the smoke at the same time. Unable to enter the front room and the fire escape walkway stairwell.
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