Drain valve

USD1104216SActive Publication Date: 2025-12-02ILLINOIS TOOL WORKS INC

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[0001] FIG. 1 is a top perspective view of a drain valve according to my new design;

[0002] FIG. 2 is a bottom perspective view thereof;

[0003] FIG. 3 is a first side elevation view thereof;

[0004] FIG. 4 is a second side elevation view thereof;

[0005] FIG. 5 is a third side elevation view thereof;

[0006] FIG. 6 is a fourth side elevation view thereof;

[0007] FIG. 7 is a top plan view thereof; and,

[0008] FIG. 8 is a bottom plan view thereof.

[0009] The broken lines in the drawings illustrate portions of the drain valve that form no part of the claimed design.

The ornamental design for a drain valve, as shown and described.