Young Industries are manufacturers of rotary valves. Models include drop-thru designs in high capacity, low headroom, end seal, cantilevered, blo-thru, quick clean, side entry, non-jamming, dense phase, and class 150 and 300 (for temperatures ranging from 650 to 1500 F) configurations.

Pelletron manufactures rotary valves for the plastics manufacturing, compounding and processing industries, as well as for the food, mineral, pharmaceutical and recycling markets. Types of rotary valves available include granular medium and high pressure, powder medium pressure, powder blow through high pressure, and many others.