Asphalt, aggregate, cement and other abrasive materials are tough on your equipment. But daily wear and tear is no excuse for your rotary valves to fail before their life expectancy. Our valves are built to withstand heavy-duty construction applications. That's why we engineer them for abrasion resistance and longevity. With extended-life features, such as chrome and tungsten coatings and steel rotor tips, your ACS rotary valve will stand up to the job you give it. If it doesn't, call us. We'll fix it.