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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

Barbecue 2026

Barbecue

A touch of that South Seas vibe, a fierce tropical storm, a brief spell of chaos and improvisation—and in the end, a thoroughly successful party nonetheless. This year’s barbecue party was anything but boring.

Sales partner training 2026

Sales partner training

This is what an informative, technically challenging, sales-oriented training session at Sistag looks like: 21 people from all over Europe having fun cruising Lake Lucerne together.

Indonesia Miner 2026

Indonesia Miner

For the very first time, we exhibited at Indonesia Miner. Together with our sales partner PT OSA, we had our own stand from 5 to 7 May. And it certainly provided plenty to talk about.

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