V-port ball valve
A V-port ball valve has a V-shaped opening in a ball or segment so the exposed flow area changes with rotation. The name identifies a general geometry but not V angle, flow characteristic, Cv, seat, or shutoff performance. To avoid overlap with segmented-ball terminology, the actual control member and manufacturer documentation must be stated in the order.
Application and duty
Rotary flow regulation after V profile, seat, and sizing conditions are defined