ZMK Technologies GmbH was founded by Norbert with the idea to develop, manufacture and distribute special valves for the chemical and petrochemical market world-wide.
Since 1 January 2015 Rüdiger Klein is the managing director of ZMK. He has 22 years of experience in the special petrochemical valve business (e.g. valves for the ethylene, coker and dehydrogenation processes).
Norbert Marx is the senior director of ZMK. In the 42 years he worked for his previous employer he gained extensive experience in the development, sales and service of special valve production for the chemical and petrochemical industry. He is one of the inventors of various patents for special valves