The Hopper Fill Valve is a fill/pass type diverter. The construction is similar to the HDV and HTV Series diverter valves in that the housing, closed end single blade diverting rotor and end plates are machined to tight tolerances. This valve is designed to be mounted to the top of a hopper and connected to a convey line. When the rotor is diverted the position of the material in the convey line is directed into the hopper. When the rotor is in the through position, the material in the convey line is directed past the hopper.