Structural principle of horizontal automatic exhaust valve

Structural Principle

There is a float inside the valve body, which has a lower density and can float on the liquid surface. When gas accumulates at the top of the valve in the system, the pressure of the gas will push the float to sink. The sinking of the float causes the piston inside the valve to move upwards, and the gap allows gas to escape from the top of the valve. When the internal gas of the system is exhausted, the valve closes and the float will float up and return to its initial position.

 

Working Principle

When there is air in the system, the gas accumulates in the upper part of the exhaust valve, and the gas accumulates inside the valve, causing the pressure to rise. When the gas pressure is greater than the system pressure, the gas will cause the water level in the chamber to drop, and the float will drop with the water level, opening the exhaust port; After the gas is exhausted, the water level rises and the float also rises, closing the exhaust port. If the valve cap on the valve body is tightened and the exhaust valve stops discharging, usually the valve cap should be in the open state. It can also be used in conjunction with isolation valves to facilitate the maintenance of exhaust valves.