The Beginnings 150 years HEROSEValves made in Germany1873 to 2023 Experience A Digital Storyde1873 to 1921 1946 to 1978 2000 to 20231922 to 1945 1979 to 19991873Founding of the Th. Rose metal foundry and fittings factory in Hamburg-Altona1909Death of Theodor Rose, son-in-law Kurt Seidewinkel takes over as director.