Under normal conditions, water contains approximately 2VOL% of dissolved air. During water transmission, this air is continuously released from the water and accumulates at high points of the pipeline, forming air pockets that impede water flow and reduce the system's water transmission capacity by about 5~5%. The main function of this micro exhaust valve is to remove this 2VOL% of dissolved air. It is suitable for installation in high-rise buildings, in-plant pipelines, and small pump stations