Introduction
Rotary valves frequently are called the heart of a pneumatic conveying system. Rightly so, for a system will not function unless the rotary valves in it perform properly.
Correct valve selection based primarily on size, style and intended use, and cost is therefore of considerable importance.
Rotary valves may function as feeders operating under a head of material and serving as the metering device, or they can be purely air locks, functioning as air seals only Often these functions are combined when the valve meters the product into a pneumatic conveying system...
■
