With the registration of a patent in 1956, we revolutionized the design of knife gate valves forever. The inventor’s name: Joseph Wey. The Original Wey Design and the Wey brand were born. Since that time, we have continuously set standards worldwide in terms of product and service quality.
The best of
While our parent company Sistag has its roots in Switzerland, we have been developing, manufacturing and distributing high quality products under the Wey brand in the USA since 1987. We offer the best of both worlds by combining Swiss engineering and precision with American ingenuity and service culture.
attention to detail
Every single product and application has its own specific characteristics that bring their own challenges. This is why we devote our full attention to each component, even before we start designing a workpiece. We get together, develop ideas and think ahead in a collaborative way. Our goal is to ensure that every product that leaves our workshop not only meets your requirements but exceeds your expectations. All the way down to the smallest detail.
anywhere in the world
From the very first meeting, we develop outstanding solutions for the specific demands of our customer’s applications. Solutions that will last and withstand future demands. Whether in mining, the pulp & paper or the food & beverage industries. Whether in wastewater treatment, oil & gas, chemical or numerous other applications. Not just here, but all over the world.
Service – we take it
Customer satisfaction is our top priority. Therefore our customer relationships always begin with a personal conversation. And of course, we’re also there for you after the purchase. Be it for a simple question, for maintenance work or when you need to expand or adapt the entire system. Because it is our firm conviction that service has to be personal.
These values have made us successful.
For us, quality is key – in order to develop solutions that meet the highest demands thanks to their precision and durability. This means we are also audited by external organizations.
ISO 9001 certificate (PDF)
PED certificate (PDF)
More than 1,000,000 Wey valves ensure reliable connections in many countries around the globe
More than 100 distribution partners worldwide are here to help
80 inch – even with our largest current Wey knife gate valve, we pay attention to every detail
Zero leckage — we exceed expectations and take every challenge as a personal incentive