| 1818 |
Founded as a brass foundry in Hamburg-Neustadt |
| 1833 |
First site with workshop purchased at the same location |
| 1884 |
Complete range of steam fittings, including safety valves |
| 1914 |
Expansion with the purchase of the "Wendenstrasse" site |
| 1943 |
Destruction of the plant in Hamburg, relocation of production to Hohenwestedt |
| 1948 |
Reconstruction at Wendenstrasse |
| 1957 |
First test lab for safety valves |
| 1959 |
First type test approval |
| 1970 |
Specialisation in safety valves |
| 1990 |
First American approval |
| Now: |
5th generation family business Market leader for safety valves in Germany and Europe |