We are innovators and facilitators – always have been, always will be

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We 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.

Whether 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.

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 Take a look behind the scenes

From the initial idea through to the installation.

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New at Sistag

Sales partner training

Our sales partners spent three days in Switzerland getting to know our production facility, deepening their product knowledge and exchanging ideas with each other.

Plant visit Pfeifer & Langen / WKS

Plant visit

We recently had the pleasure of welcoming two customers to our Swiss production facility: The sugar manufacturer Pfeifer & Langen and the plant manufacturer WKS. In addition to a guided tour of the entire Sistag plant, the program included a training session on seal replacement.

Fully automated production

The Halter Loader has been an integral part of our turning shop for over a year now. It equips our Biglia turning center with cylinder bases, columns and spindle nuts and means a significant increase in efficiency for us.

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