Expansion Valve

FIG. 1 is a front, left side and top perspective view of a first embodiment of an expansion valve, comprising a new, original and ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a right view thereof;

FIG. 8 is a front, left side and top perspective view of a second embodiment of an expansion valve comprising a new, original and ornamental design;

FIG. 9 is a front view thereof;

FIG. 10 is a back view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a right view thereof; and,

FIG. 14 is a left view thereof.

The broken lines shown in the figures illustrate portions of the expansion valve that form no part of the claimed design.