Whether above or below ground, the conditions in the construction industry and thus the requirements for a valve are extreme. Mud, dirt, dust, heavy vibrations, and temperature extremes are ever-present at construction sites and simultaneously pose a challenge for any valve manufacturer. Due to their highly compact and robust design, müller co-ax valves are also being used successfully in this harsh environment. Product certifications such as TÜV, DVGW and ATEX emphasize the high degree of safety, reliability and quality exhibited by our valves.