RU - Both design and testing are performed by Dafram qualified engineers using dedicated software and hardware tools. Finite Element Analysis and Computational Fluid Dynamics for both structural and fluid dynamic design validation. Advanced calculation software and hardware allow to predict the valves flow characteristics in terms of pressure drop, flow velocity and risk of cavitation.
CFD analysis is the primary instrument for the design optimization: pressure and velocity fields are clearly defined at every opening angle, allowing cavitation and noise level numerical prediction.
Once known the working conditions, the single valve can be designed to perfectly meet the plant requests.

RU - High quality measurement equipment allows DAFRAMto collect reliable test data, that ensure a predictable behaviour of the valve in every working condition. Once known the customers’ specification in terms of fluid characteristic, expected flow temperatures, pressure levels and mass flow rates DAFRAMcan develop a control valve that perfectly meets the process configuration.
Both benches ensure DAFRAMa complete design validation of control valves and an extremely accurate connection between tests and calculation results.

RU - Due to a very large flow passage DAFRAMcontrol ball valves can grant high flow coefficients compared to other valve types. Thanks to their operating principle, quarter-turn ball valves are able to control fluid flow at very small openings and to open at high differential pressure. They are also able to maintain low fluid velocity thus lower noise and vibration to the pipeline. In addition, control ball valves allow tight and fast shut-off in case of emergency.