What we do is built to last

Short-term solutions are not our thing. When we tackle something, we want to do it right. That's why “sustainability” is not just a word for us, but a guiding principle that we follow in all areas of our company.

Durable products

Thanks to high-quality materials and careful workmanship, our valves often remain in service for decades. This not only saves resources, but also ensures lower operating costs in the long term. Repacking and professional maintenance by our service team further extend the service life of the valves. And if something does happen to break down, we repair it in our Sistag factory.

Swiss made

Wey knife gate valves are manufactured exclusively in Switzerland, Germany, and the USA. Our own team also handles the engineering. This not only ensures short transport routes, but also allows us to meet our own high standards of quality, environmental protection, and occupational safety.

Secure jobs & training

We are a family-owned company through and through – and have been for over 60 years. At our Swiss location alone, we offer 130 secure jobs and have built up a team of highly qualified and often long-standing employees. We also invest in the future and train our team members of tomorrow ourselves. 13 apprentices in five different professions are currently completing their training with us.

Energy efficiency & recycling

We attach great importance to working in a resource-efficient manner. Our production materials are almost completely recyclable, and any waste is disposed of properly. We also strive to continuously reduce our energy consumption and CO₂ emissions. To this end, we have entered into a target agreement with the Swiss federal government, which is reviewed on a regular basis.