FIG. 1 is a perspective view of a valve of the new design;
FIG. 2 is a front elevational view of the valve of FIG. 1;
FIG. 3 is a top plan view of the valve of FIG. 1;
FIG. 4 is a bottom plan view of the valve of FIG. 1;
FIG. 5 is right side elevational view of the valve of FIG. 1;
FIG. 6 is left side elevational view of the valve of FIG. 1; and,
FIG. 7 is rear elevational view of the valve of FIG. 1.
The portions of the Figures shown in broken lines are not part of the claimed design and are for illustration only.