Trunnion V-Notch Ball Valve

ALIS Valves offers Trunnion V-Notch Ball Valves for industrial applications requiring precise flow regulation, stable ball positioning and reliable performance under demanding operating conditions. These valves combine a trunnion-mounted ball design with a V-shaped notch that helps provide controlled flow adjustment as the ball rotates. The trunnion support secures the ball at the top and bottom, helping resist pressure-induced movement and reducing the load on the valve seats in suitable designs. The V-notch opening creates a controlled flow characteristic, making the valve suitable for modulating applications where accurate adjustment is important. Depending on the valve configuration, the body, ball, seat materials and sealing arrangement can be selected to suit the process media, operating pressure and temperature requirements. Manual, pneumatic or electric actuation options may be available to meet different operating and automation needs.

Trunnion V-Notch Ball Valves are used in chemical processing, oil and gas facilities, pulp and paper mills, wastewater treatment plants, power generation units and other industrial systems requiring controlled flow regulation. Depending on the selected materials, seat design and pressure rating, they can be specified for compatible liquids, viscous fluids and selected slurry applications within their rated operating limits. Important selection factors include valve size, flow coefficient (Cv or Kv), operating pressure, temperature range, differential pressure, process media, particle content, body and ball materials, seat construction and required control accuracy. The V-notch geometry should be selected according to the required flow characteristics and process conditions, while actuator sizing must account for operating torque and control requirements. For abrasive or high-velocity services, potential erosion, cavitation and pressure-drop effects should also be evaluated. Selecting the appropriate trunnion support and V-notch configuration helps support stable ball operation, accurate flow control and dependable performance under specified working conditions.