FIG. 1 is a top, front and left-side perspective view of a flow control valve showing a first embodiment of our new design;
FIG. 2 is a bottom, rear and left-side perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a right side view thereof;
FIG. 9 is a top, front and left-side perspective view of a flow control valve showing a second embodiment of our new design;
FIG. 10 is a bottom, rear and left-side perspective view thereof;
FIG. 11 is a front view thereof;
FIG. 12 is a rear view thereof;
FIG. 13 is a top plan view thereof;
FIG. 14 is a bottom plan view thereof;
FIG. 15 is a left side view thereof; and,
FIG. 16 is a right side view thereof.
The broken lines shown in FIGS. 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15 and 16 are included for the purpose of illustrating portions of the flow control valve and form no part of the claimed design.