In the future, the handwheels of the manually operated GEMÜ 611 and GEMÜ 617 diaphragm valves will be made partially from post-industrial PVDF material and from new PVDF material. At the GEMÜ Group, the post-industrial material is created in the form of sprues or start-up parts during regular production, and is consequently utilized further. Recycling protects the environment and reduces the carbon footprint.