A valve that is actuated by a float, generally used to control make-up water supply.
A valve that controls the level of a fluid by the means of the sensing element floating in the fluid.
A toilet component. Also known as a fill valve, supply valve, or ballcock. It provides the appropriate amount of new water to complete a toilet flush cycle.
Controlling the opening and closing of a valve by using a float on a lever. When the float that is rising with the water in the tank reaches a certain level, the valve shuts off the incoming water. This mechanism is used in the tank of a toilet.
A float valve is a mechanical feedback mechanism that regulates fluid level by using a float to drive an inlet valve such that a higher fluid level will force the valve closed whilst a lower fluid level will force the valve open. This is an example of negative feedback.