The principle of the exhaust valve

The exhaust valve is an indispensable auxiliary component in the pipeline system. It is widely used at the highest point or elbow on the pipeline or where it is closed to remove the gas inside the pipe to clear the pipeline and achieve normal operation.

Principle of operation: When the water enters the pipeline, the plug stops at the bottom of the positioning frame, and a large amount of exhaust gas is exhausted. When the air is exhausted, the water enters the valve to float the ball, and the transmission plug is closed to stop the exhaust. Natural gas will generate a small amount of gas in the normal operation of the pipeline, these gases will accumulate in the upper part of the pipe, to a considerable extent, the water level in the valve will drop, the float will flow down and the gas will be discharged from the hole. If there is a power outage, the pump is stopped, the water flow in the pipe is empty. The negative pressure will appear at any time, the float will descend along the water, open the hole to drive the big hole to make a lot of air intake to ensure the safety of the pipeline. If this valve is not installed, the pipeline will have air resistance at any time, so that the water capacity of the pipeline cannot meet the design requirements; secondly, when the pipeline is in operation, power failure occurs, and the negative pressure caused by stopping the pipeline can cause the pipeline to vibrate or rupture. The row and intake valves quickly draw air into the pipe to prevent it from vibrating or breaking.