Air Valve

FIG. 1 is a perspective view of an air valve, showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a perspective view thereof, shown in an alternate position.

The broken lines shown in the figures illustrate environmental or other features that form no part of the claimed design.