Float Valve

A valve that automatically controls the level of a vessel. It is installed in the liquid inlet or outlet of the container, the use of float (usually empty floating ball) in the container float or drop drive valve disc action, by regulating the flow in and out of the container to maintain a certain level of the container. The valve in the figure is a floating ball regulator that controls the inlet flow of fluid. When the liquid level is below the specified value, the float drops to open the disc, and the liquid flows into the container, and the liquid level rises accordingly. When the liquid level rises to the specified level, the float floats to close the disc and the liquid stops flowing in. These valves are used for level control in low pressure vessels.