ZESA/GESA® 

The new ZESA®/GESA® NEXTG3N generation of butterfly valves from ARI-Armaturen ensures less turbulence thanks to an optimised disc design. This results in shorter inlet and outlet pipework sections. From DN 250 onwards, you benefit from the low weight and high stiffness of the honeycomb disc. The polygonal connection of shaft and disc ensures stable operation of your plant thanks to high torque transmission. These innovations lead to greater efficiency, which is reflected in improved Kvs values, greater ease of servicing and a more compact plant design.