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Update time: 23.10.2012


Zimmermann & Jansen is based on a successful family tradition developed over the last one hundred years and has produced valves since its foundation.

An early specialization in products for the iron and steel industry has expanded into other high temperature, severe service areas including the refining, chemical and glass industries.

Zimmermann & Jansen Milestones

1850 The iron foundry and mechanical engineering company of DACIERS FRERES is established by the Dacier brothers, entrepreneurs from the Walloon region.

1873 The company is acquired by Messrs. Brandenburg and Zimmermann. The new owners add valves for the gas industry to the factory`s product range of papermaking machinery.

1877 This year marks the foundation of ZIMMERMANN & JANSEN. The engineer Wilhelm Jansen joins the company, which receives its current name after the Brandenburg brothers withdraw from the business.

1895 Leonard Zimmermann leaves the company, which is owned solely by the Jansen family and their descendants.

1927 With a workforce of 350, the company celebrates its 50th anniversary. Its chief customers now include gasworks, metallurgical plants and the chemical industry.

ZIMMERMANN & JANSEN products are exported to England, France, Belgium, Russia and the other countries.

1945 Assisted by a handful of employees, the family begins to rebuild the war-ravaged factory. Early contacts to Britain and the US evolve into a number of longstanding and successful business relationships.

1961 Opened a manufacturing plant in the USA

1972 Opened a manufacturing plant in South Africa

Z&J Technologies has become known worldwide as an outstanding manufacturer of large diameter, high temperature, severe service valves for the steel, glass, refining, chemical and petrochemical industries. Today the company has 350 members of staff. Z&J Technologies main task is to supply engineered solutions to the valve problems affecting our customers. Our many years of experience and the most advanced engineering and design methods serve as a sound basis for this activity. Z&J continues to lead in customized valves for the Refining Industry.