The ornamental design for a valvecabinet, as shown and described.
FIG. 1 is a front perspective view of a valve cabinet showing my new design;
FIG. 2 is a rear perspective view of the valve cabinet seen in FIG. 1;
FIG. 3 is a front view of the valve cabinet seen in FIG. 1;
FIG. 4 is a rear view of the valve cabinet seen in FIG. 1;
FIG. 5 is a right side view of the valve cabinet seen in FIG. 1;
FIG. 6 is a left side view of the valve cabinet seen in FIG. 1;
FIG. 7 is a top view of the valve cabinet seen in FIG. 1; and,
FIG. 8 is a bottom view of the valve cabinet seen in FIG. 1.
Broken lines in the figures are for illustrative purposes only and are not part of the claimed design. Shade lines having a combination of long and short lines in the figures show contour and not surface ornamentation.