Aalberts IPS developed the Apollo v-port ball valve, which is designed to handle higher fluid velocities and increased pressure drops when the valve is in partially open positions.
Throttling an Apollo v-port valve results in large pressure drops, but with higher pressure recovery than other control valves. Once the velocity reduces as the fluid exits the valve, a large percentage of the pressure is regained. Selecting a v-port ball valve for control operations may allow the user to select a more cost effective and smaller diameter valve when compared to using more traditional control valves.
The Apollo v-port profile geometries were developed with computational fluid dynamics (CFD) studies and validated with testing to develop the features that control the valve flow coefficient (Cv) curves of each valve size and profile. The profiles achieve a desirable range of flow control and inherent rangeability. The valves share the same platform as the original Apollo full port and standard port valves, and are offered in 30, 60, and 90-degree Vs for equal percentage flow control, and slotted versions for narrow-band linear flow control.
Courtesy of Aalberts.