Float control valve is a modulating valve that accurately controls the liquid level in tanks. This valve is designed to open fully when the liquid level reaches a preset low point, and close drip-tight when the level reaches a preset high point. The float pilot is remotely installed Inside of reservoir, or Integrally installed with main valve for size less than 4 Inch. our hydraulic float valve can stop overflow or overfilling while the valve connector connects the valve to the incoming liquid. When the float rises to a selected level, the valve is then opened or closed by the lever attached to the float.