float valve

noun

1. a valve admitting or discharging a liquid to or from a tank and regulated by a float on the surface of the liquid within the tank to maintain a nearly constant height of liquid.

Word History and Origins

Origin of float valve¹

First recorded in 1870–75

Example Sentences

Near each filling-up tun O is a small cistern t communicating with the tun O by a pipe, which is closed by a float-valve.

From Project Gutenberg

The water is allowed to flow into each tank by means of an automatic float valve.

From Project Gutenberg

This is usually caused by foreign matter getting under or in the float valve, so that it will not properly seat.

From Project Gutenberg