InterApp international company since 1969.
Our success story began with the trade and distribution of valves and accessories. Accessing international markets was part of our strategy right from the start.

In-house development, in-house manufacturing.

We began to develop and produce our first butterfly valve to our own design in Switzerland very early on. To better meet our customers' needs, we have continually expanded our product range to include butterfly, knife gate, and ball valves from our sister companies, along with carefully selected third-party