The ornamental design for motor-operated valve, as shown and described.
FIG. 1 is a first perspective view of a motor-operated valve showing our new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The dashed broken lines shown in the figures are included for the purpose of illustrating portions of the article and form no part of the claimed design; and the dashed-dot broken lines shown in the figures are included for the purpose of illustrating bounds of the claim and form no part of the claimed design.