Düker is a medium-sized company with a 550-year heritage, specializing in high-quality solutions around water. Its innovative products are made from sustainable, healthy materials, which do not pollute the environment and promote essential water hygiene and quality. With a focus on high-quality glass-lined products and coatings, Düker is one of the leading manufacturers of valves and pressure pipe fittings for drinking water supply, as well as pipes and fittings for building drainage.


Düker Group
Würzburger Str. 10-16
D-97753 Karlstadt

About us

STRATE stands for innovative and state-of-the-art wastewater technology since 75 years. The company develops sewage pumping stations with the patented separator system, non-return valves as well as aeration and venting valves of all sizes. In the industrial sector STRATE supplies blower and compressor manufacturers with non-return valves and start-up relief valves for air and technical gases. STRATE Service offers a comprehensive range of services, from new installation and regular maintenance to refurbishment, spare parts sales and the reconstruction of existing stations.


STRATE Technologie für Abwasser GmbH
Im Kirchenfelde 9 
31157 Sarstedt

+49(0)5066 988-0