The company was founded in the 1960s in Duisburg Rheinhausen as Reglerbau Herpertz GmbH, from the mid 1970s it traded as Regler + Armaturen Rippstein GmbH, and in 1987 was refounded as Regler + Armaturen Terschüren GmbH.

In 1998 the company was taken over by the present owners. In 2005 the activities of Allo Mess- und Regeltechnik GmbH were acquired.
Since the company was founded, the emphasis of its business activities has been in the development and design
of customer-specific solutions and their manufacture entirely in our own workshops.