Abstract: A ball valve that includes a ball comprising an integrally formed single-component body that defines an external surface; a fluid passage extending through the body, the fluid passage defining an internal surface; and a plurality of internal chambers formed within the body, each internal chamber of the plurality of internal chambers being spaced from the external surface and being spaced from the internal surface; wherein when the ball is subjected to one or more stresses, a stress concentration is created within a release-by-milling zone of the single-component body, the release-by-milling zone being adjacent to the plurality of internal chambers. The ball is at least partially manufactured using an additive manufacturing process.

Abstract: A ball valve that includes a ball comprising an integrally formed single-component body that defines an external surface; a fluid passage extending through the body, the fluid passage defining an internal surface; and a plurality of internal chambers formed within the body, each internal chamber of the plurality of internal chambers being spaced from the external surface and being spaced from the internal surface; wherein when the ball is subjected to one or more stresses, a stress concentration is created within a release-by-milling zone of the single-component body, the release-by-milling zone being adjacent to the plurality of internal chambers. The ball is at least partially manufactured using an additive manufacturing process.