VALVE, MULTIPLE-ORIFICE

A patented orifice valve with two orifice plates or disks in pressure tight contact. One disk can be rotated through 90'. For full flow through the valve, the orifices in the two disks are in perfect alignment. To reduce the flow, the moveable disk is rotated a certain number of degrees which partially covers the orifice in tile fixed disk, thus restricting the flow through the valve.