(under subclass 434) Apparatus in which the valve controlled by the float arm is designed in such a manner that fluid pressure is exerted on opposing surfaces of the valve so that the forces acting on the valve as a result of flow or pressure in the line are neutralized or balanced, and thus a smaller force is necessary to actuate the valve.
SEE OR SEARCH CLASS
251, Valves and Valve Actuation,
281, for balanced valves with or without actuators therefor, and see the search notes thereto.
