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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

Save the date: zebi 2024

Save the Date

We are once again exhibiting at the zebi education fair in Central Switzerland. At our stand in Hall 1, you can not only get to know our 5 training professions, but also put your marksmanship to the test and win great prizes.

Apprentice excursion 2024

Apprentice excursion

On October 15, our apprentices' yearly excursion took them on an exciting morning tour of the Growag Feuerwehrtechnik AG company, where they were given fascinating insights into production. In the afternoon, the group had a great time at the Swiss Holiday Park.

Sales partner event

We took our 60th anniversary as an opportunity to invite our sales partners from around the world to visit us in Switzerland. Many of them have been working with us for more than 20 years. During a tour of our plant, they were able to see the changes of recent years with their own eyes. And as an extended part of our team, our partners were of course not to be missed at the anniversary party in the evening.

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