Circulation Pump


One of our highlights is the still functional circulation pump. It was needed to maintain the high-pressure gas cycle in the Haber-Bosch process.

Characterization: The circulation pump is a standing single-stage reciprocating compressor.

Manufacturer: Esslingen machine factory

Year of construction: 1925

Operational use: Ammonia synthesis at the Leuna works, in use until 1986

Function: Maintenance of the high pressure gas cycle


The pump is functional and can be demonstrated to you by our trained museum staff. It is best to arrange a tour for this.