About us

Z&J is based on the successful family tradition of Zimmermann & Jansen, which was founded in 1877 and has produced valves since its foundation.
Long term experience and application of latest engineering technology and fabrication procedures build the basis of Z&J´s success as a manufacturer of unique high-quality and reliable, large diameter valves for severe application in the Iron & Steel-, Glass-, Chemical and Petrochemical Industries.
High operating temperatures, large nominal sizes up to 6m dia. – by request larger – together with high frequency of operation and very long maintenance free operating periods, are Z&J´s specialty.
Over the years, Z&J has been working with all major glass manufactors worldwide to develop advanced technologies to lower the overall, long term operating costs and investments.
Z&J´s aim being the utmost benefit for their customers.

Products and services

Flue Gas and Combustion Air Reversal Valve Systems, Shut-off and Control Dampers, Batch Charger, Annealing Lehr Drive, Combustion Air Systems, Worldwide Service.

Z&J Technologies GmbH
Bertramsweg 6
52355 Dueren

Phone: +49 2421 691-0
Internet: www.imi-critical.com
E-mail: Send message

Contact person

Eberhard Ruland
Division Manager Machinery / Equipment for Glass Industry
Phone: +49 2421 691-269
E-mail: Send message

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