The ornamental design for a valve with actuator, as shown and described.
FIG. 1 is a top view of the valve with actuator;
FIG. 2 is a front view of the valve with actuator;
FIG. 3 is a bottom view of the valve with actuator;
FIG. 4 is a rear view of the valve with actuator;
FIG. 5 is a left side view of the valve with actuator;
FIG. 6 is a right side view of the valve with actuator; and,
FIG. 7 is a perspective view of the valve with actuator.
The broken lines in the drawings are included for the purpose of illustrating elements of the valve with actuator and form no part of the claimed design.