A ball valve uses a sphere with a circular through-hole as the opening and closing part. Actuated by the valve stem, the sphere rotates 90 degrees around the center of the valve stem, completing the opening and closing function.
A ball valve uses a sphere with a circular through-hole as the opening and closing part. Actuated by the valve stem, the sphere rotates 90 degrees around the center of the valve stem, completing the opening and closing function.
