To adjust the level of water or liquid contained in a cistern or tank, float shut-off valves are used. The float represents the element that triggers the closing mechanism, blocking the filling of the tank. When the liquid reaches a certain level, the float, which is placed inside the tank, rises and activates the valve.
Consequently, the shutter stops the flow of fluid. Used in contexts where their correct functioning is essential, for example fire-fighting systems, they must be reliable and correctly sized to ensure fast filling of the tank.