Fire hydrant control valve

A standpipe drain system comprising:

• a standpipe;
• a valve control device including:
• an operating stem;
• a valve top plate having a conical base having at least three stabilizer arms, each of the at least three stabilizer arms having a flat outer surface wherein each of the at least three stabilizer arms has an inner edge opposite the outer surface, the inner edge having a concave curve having one or more radii, wherein the at least three stabilizer arms are disposed around the conical base so that centerlines of the stabilizer arms are spaced apart by between a range of 90 and 135 degrees;
• a valve seat rubber;
• a valve bottom plate securing the valve seat rubber between the valve bottom plate and a flat bottom surface of the valve top plate, the valve bottom plate, the valve seat rubber, and the conical base being mounted on the operating stem;
• and
• a valve seat ring having a plurality of slots, each of the plurality of slots corresponding to one of the at least three stabilizer arms, wherein the valve seat ring includes at least one drain hole, the at least one drain hole being in fluid communication with an outlet portion of the valve seat ring with the valve control device in a closed position, the at least one drain hole being covered by one of the at least three stabilizer arms when the valve control device is an open position.

A standpipe drain system comprising:

• a standpipe;
• and a valve control device including:
• an operating stem;
• a valve top plate having a conical base having at least three stabilizer arms, each of the at least three stabilizer arms having a flat outer surface;
• a valve seat robber;
• a valve bottom plate securing the valve seat rubber between the valve bottom plate and a flat bottom surface of the valve top plate, the valve bottom plate, the valve seat rubber, and the conical base being mounted on the operating stem;
• and a valve seat ring having a plurality of slots, each of the plurality of slots corresponding to one of the at least three stabilizer arms, wherein the valve seat ring includes at least one drain hole, the at least one drain hole being in fluid communication with an inlet portion of the valve seat ring with the valve control device in a pressure drain position wherein a saturation ring including a drain channel and a plurality of notches and a plurality of outlet notches, wherein a drain route is defined by the at least one drain hole in the valve seat ring, the plurality of drain ports in the drain ring, the plurality of notches and the plurality of outlet notches and the drain channel in the saturation ring, the drain route providing a fluid communication route between an outlet portion of the valve seat ring in the standpipe and an external portion of the standpipe, wherein each of the at least one drain hole in the valve seat is radially offset from each of the plurality of drain ports in the drain ring and wherein each of the plurality of drain ports are radially offset from each of the plurality of outlet notches in the saturation ring.