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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

Lippuner symposium 2024

Lippuner symposium

As a manufacturer of butterfly and check valves with drinking water certification, we were once again represented as an exhibitor at the Lippuner symposium in Baden. In addition to the diverse exhibition area, there were exciting presentations on water procurement and supply and plenty of time for networking.

ZEBI lottery 2024

Lucky winner

Almost 400 young people tried their luck at our ZEBI ball throwing wall and took part in our lottery. Tomáš from Lucerne won the first prize. Congratulations!

Ecomondo 2024

Ecomondo 2024

Wey valves were prominently displayed at the trade fair dedicated to green technology, along with our Italian distribution partner Ageco Italia SrL.

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