Leak-free under extreme conditions: Titelstory in the 6+7/2022 Issue of the Austrian Trade Magazine 'Betriebstechnik'

4  Ausgabe 6/7–2022 COVER Foto: Axpo Power AG Muttsee lakebarrage2474m Machine cavern Transformer cavern Valve chamber Accessgallery1with funicularTierfehd– central cavern station (sectionA1) Accessgallery (existing)Chalchtrittli– Limmern retaining structure Accessgallery2 Windowgallery Probinggallery Headwaterpressuregallery Surge tank Pressure shafts Underwaterpressuregallery Inletandoutlet structure Flood relief andbottomoutlet Construction cableway2 Ochsenstäfeli–Muttsee The water is drained as required and can drive four turbi- nes with a total capacity of 1000 MW. notice. ” Oswald Hauser parti- cularly wants to highlight the induction into the forming ma- chine, the “heart” of STAUFF Form. STAUFF employees tra- velled from the headquarters in the German Sauerland region to train the installation person- nel. This highlighted additional benefits of the forming system: Operation is simple, and chan- ging tools for different tube diameters is easy. Another design feature of STAUFF Form is that excessi- ve or incomplete tightening is virtually impossible. The ins- tallation path after reaching the fixed point is clearly defined. The short rotation path of ap- prox. 15 – 20° makes it possi- ble to install the system even in tight spaces and under challen- ging conditions. In practice, the forming machines require regular soft- ware updates. With the latest generation of machines, this is exceptionally straightfor- ward: Updates can be trans- mitted online. This is made possible by an integrated communication module with a SIM card. The communica- tion features offer additional benefits for users. The machine history and pa- rameters, for example, can be viewed via an online service and analysed together with the account manager. The cause of a malfunction can be identified quickly and the quality of the forming process can be main- tained at a high level. Customers can use the de- tailed documentation of the completed forming processes as proof of correct assembly. The data exchange with STAUFF’s own cloud is encrypted in both directions, reliably protecting data against third-party access, misuse and manipulation. Oswald Hauser: “The change to STAUFF Form is an impor- tant technical step for us and al- so an advantage with regard to work processes, reliable instal- lation and maintenance effort.” INFORMATION: STAUFF Germany Walter Stauffenberg GmbH & Co. KG Im Ehrenfeld 4 D-58791 Werdohl Tel.: +49/2392/916 0 Fax: +49/2392/916 103 shop@stauff.com www.stauff.com Each of the four pump turbines has a capacity of 250 MW. Foto: Axpo Power AG