In the 1960s the brothers Wouter and Johan Witzel laid the foundation for what is today Wouter Witzel Eurovalve, a proud member of the AVK Group. What started as a family-driven ambition has grown into an internationally respected specialist in the design and manufacturing of high-quality butterfly valves.
For six decades, our valves have found their way into municipal, shipbuilding and industrial applications all over the world. With nearly 200 dedicated employees, an annual turnover exceeding €50 million and a strong, healthy order book, Wouter Witzel Eurovalve is firmly positioned for the future, ready for the next 60 years and beyond.
To mark this milestone, we dedicate the entire year 2026 to our 60th anniversary. Each month, we will highlight a different aspect of our company: from our people and products to our history, innovation and partnerships. Along the way, we’ll be launching fun, spontaneous actions and surprises.
Follow us on social media and stay tuned, you won’t want to miss what’s coming next.
Anniversary promotion: Crack the Valve Code & Win!
As part of our 60th anniversary celebrations, we continue our monthly promotions with a new challenge. This time, it’s all about logic and numbers. For our October edition, we invite you to Crack the Valve Code & Win!
Each valve in the puzzle stands for a whole number from 1 to 10. Use the equations to work out the value of each valve, then solve the final equation. Put your brain to work and celebrate 60 years of Wouter Witzel with us!
How it works
What can you win?
The winner will receive a waterproof calculator and a puzzle book. A perfect prize for every puzzle lover celebrating 60 years of Wouter Witzel. Good luck, stay sharp, and crack the code!
Wouter Witzel October