The Butterfly Valve is used at the highest point or elbow on the pipeline or the place with closed air to remove the gas in the pipe to clear the pipeline and achieve normal work. If this micro-exhaust valve is not installed, the pipeline will have air resistance at any time, so that the water capacity of the pipeline will not meet the design requirements. Secondly, when the pipeline is running, the power outage or the negative pressure in the pipeline will cause vibration or rupture. The exhaust and intake valves quickly suck air into the pipe to prevent vibration or rupture of the pipe. 2. When water enters the pipeline, the plug stops at the lower part of the positioning to perform a large amount of exhaust.

When the air is exhausted, the water enters the valve to float the ball, and the drive plug is closed to stop the exhaust. The pipeline will naturally produce a small amount of gas during normal operation. These gases will accumulate in the upper part of the pipe. To a considerable extent, the water level in the valve drops, and the float drops along the water. The gas is discharged from the small holes. If there is a power outage, a pump is stopped, and the water in the pipeline is empty There will be negative pressure, the floating ball will drop along the water, and the small holes will be opened for a large amount of air to ensure the safety of the pipeline.

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