Valve

FIG. 1 is a rear perspective view of a valve showing the claimed design;

FIG. 2 is a right side view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a left side view thereof.

The dash broken lines are for the purpose of illustrating portions of the valve and form no part of the claimed design.