Ex-protected pneumatic drives 1968
The first ex-protected pneumatic drive is developed. The use of electrical servo drives is in decline in the chemical industry.
The first premises are rented in Triberg 1965
In an area of 65 sqm, Gerhard Wisser begins production with three employees. One of their first big customers is the Nuclear Research Centre in Karlsruhe, ordering hundreds of sleeved valves.
Established 1963
Dipl.-Ing. Gerhard Wisser founded the AZ Armaturen GmbH on October 18th, 1963 together with a former fellow student. First products are designed by AZ and build by outside companies.