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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.

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 From January 2025

New production location in Ettlingen.

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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

New Year's breakfast

New Year's breakfast

After a long and relaxing Christmas break, we are back and starting the new year full of energy. More curious and ambitious than ever before and ready for all the changes that 2025 will bring. To kick things off, our Swiss team met for a New Year's breakfast in the production hall today.

Christmas Holidays 2024

Christmas Holidays

A year full of ambitious projects and positive changes lies behind us. From December 20, 2024 to January 1, 2025, our entire German team will be on Christmas break. We wish our customers, partners and especially our employees happy holidays and an inspiring start to the new year. May we always stay curious and continue to grow together as we face our challenges in 2025.

Christmas Party 2024

Christmas Party

Our Swiss team kicked off this year's Christmas party with a mulled wine by the fire pit on Friday. Over drinks on the atmospherically lit forecourt and a fondue later on, we were able to reflect on an exciting year and get in the mood for the upcoming Christmas break together.

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