2/2-way butterfly valve in metal for shutting off and controlling media flows. Since the butterfly valve is available in various designs (wafer type, lug type) and in different materials, it meets the requirements of various applications and processes. Preferential areas of application for butterfly valves are, for example, the metal industry, power plant technology, paper industry as well as mining, shipbuilding and mechanical engineering. Further characteristics and advantages are: • Continuous stem for self-centering disc: even wear and low torque • PFA-coated stem in the sealed area • Blow-out proof stem seal • Spherically shaped disc • Notched handle in ductile iron: lockable in 10 adjustable positions