The working principle of the air release valve: when the water enters the pipeline, the plug stops at the lower part of the positioning frame, and a large amount of exhaust is carried out. When the air is exhausted, the water enters the valve to float the ball, and the transmission plug is closed, and the exhaust is stopped. . When the pipeline is in normal operation, a small amount of gas will naturally be generated, and these gases will accumulate in the upper part of the pipe. To a certain extent, the water level in the valve will drop, and the float will descend along the water, and the gas will be discharged from the small hole. Negative pressure will appear at any time, and the floating ball will descend along the water, and the small hole will be opened to drive the large hole to carry out a large amount of air intake to ensure the safety of the pipeline.
