We are innovators and facilitators – always have been, always will be
Learn moreWe are a family-owned company. That shapes our traditions and the way we think and act. We have been setting standards in the valve industry for over 60 years. Because we understand what moves people and satisfying their needs is our priority; working together to learn new things, find new solutions, and achieve unique results that inspire. Now and in the future.

Discover our job profiles
We are always evolving and looking for new talent. Whether it’s in product development, production, service or sales, we have plenty of exciting jobs and career opportunities to offer, including for those just starting out in their first job or for apprentices. Our employees take you with them - click through their stories.
JOBPROFILE STORIESWhether they come in the form of knife gate valves, butterfly and check valves or water control gates, isolation valves are our expertise. We combine engineering skills with exceptional manufacturing know-how. Our definition of performance: the highest level of quality, which stands the test of time.
From the initial idea through to the installation.
Learn moreNew at Sistag
AUMA Expertise in Germany
We have reached a new milestone. At our production site in Ettlingen, our team is now assembling not only manually and pneumatically operated knife gate valves, but also valves equipped with AUMA electric actuators. For our German customers, this means: shorter lead times, more flexible solutions, and greater on-site expertise.
Keyence 3D-Scanner
Quality starts with the details. We use 3D scanning to check our individual components for even the slightest deviations, thereby taking quality control to a new level.
Dresden Wastewater Conference
Filled with a wealth of impressions, new connections, and exciting industry insights, we look back on a successful wastewater conference in Dresden.