Torque is an essential parameter in the design of rotary valves such as butterfly valves, ball valves, plug valves etc. It plays an important role in the actuator selection in case of motor operated valves. Hydrodynamic torque or simply dynamic torque has a significant share of the total torque the valve shaft has to undergo during valve operation. Understanding the effect of dynamic torque and its variation with the opening percentage of the valve can give designers a better insight into crucial design improvements for torque reduction in their valve design.

Control Valve Performer (CVP) is a CFD application that runs from your web browser. It predicts the performance of control valves using fluid flow simulations. The app predicts the coefficient of hydrodynamic torque for all the opening percentages for your control valve design and generates a curve illustrating the nature of variation of the torque coefficient.

This webinar will help you understand the importance of hydrodynamic torque in rotary valves and through a case study, analyze how the hydrodynamic torque varies with the change in valve type.