AKW A+V Protec Rail GmbH

Model STB 22 - Bioreactor Systems


To meet the requirements of the high passenger volume, the SBB acquired a total of 60 two floor multiple unit trains type DTZ of the company Siemens. Those were supposed to be used in the Greater Zurich area. SBB decided to equip these local passenger trains with bioreactors delivered by Protec. Each train is equipped with a sanitary facility suitable for the disabled, in which an inside-mounted bioreactor of the type STB 22 is installed. As an exception a module was designed, that consists of a bioreactor and an attached water tank. An increase of the fleet with additional two floor multiple unit trains is projected.

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