The V-AXX valve has the highest Kv / Cv of any comparable torque-seated, butterfly valve. How important is a higher Ku / Cv value? In new construction, when the higher Kv / Cv of the V-AXX is considered, the size of the valve can be reduced, minimizing the costs of the valve. But that is just the start. It’s lower torque (combination of the smaller valve size, but also the completely friction free sealing design) allows for a smaller, less costly automation package. Then, with the smaller valve, the piping, and the associated supports are also smaller and less costly.
In new construction, something once thought insignificant, Kv / Cv values, can have a huge impact on the total costs of the investment if You are able to use for example DN 350 instead of DN500. With regards to day to day valve replacement where the pipe size and infrastructure have already been determined, the higher flow coefficients with the V-AXX valve, can improve process performance and lower pumping costs due to the lower pressure drop across the valve.
The new ORCA® trim provides huge advantages against other solutions. Plates mounted on both sides of the disc allow the pressure to drop in several stages and prevent supersonic speed in gases and prevent the cavitation in liquids. One or more sets of plates can be mounted in accordance with the customer needs, allowing an excellent flow control when the valve is partially open.
Since the plates are mounted parallel to the disc and moved together with the disc, they do not interfere with the flow when the valve is fully open. This ensures the maximum Kv / Cv value remains as this of a standard valve.