Flush Valve

FIG. 1 is a perspective view of a flush valve showing our new design. FIG. 2 is a front view of the flush valve of FIG. 1 . FIG. 3 is a rear view of the flush valve of FIG. 1 . FIG. 4 is a left side view of the flush valve of FIG. 1 . FIG. 5 is a right side view of the flush valve of FIG. 1 . FIG. 6 is a top view of the flush valve of FIG. 1 ; and, FIG. 7 is a bottom view of the flush valve of FIG. 1 . The evenly spaced broken lines in the drawings show portions of the flush valve, which form no part of the claimed design.