FIG. 1 is a front, top, right-hand side perspective view of an expansion valve comprising a new, original and ornamental design;
FIG. 2 is a front view of an expansion valve comprising the new, original and ornamental design;
FIG. 3 is a rear view of an expansion valve comprising the new, original and ornamental design;
FIG. 4 is a right-hand side view of an expansion valve comprising the new, original and ornamental design;
FIG. 5 is a left-hand side view of an expansion valve comprising the new, original and ornamental design;
FIG. 6 is a top view of an expansion valve comprising the new, original and ornamental design; and,
FIG. 7 is a bottom view of an expansion valve comprising the new, original and ornamental design.