Rotary airlock valves move and protect bulk solids
DMN
The DMN High-Pressure Rotary Airlock Valve (photo) has a special body and rotor configuration that protects the product against degradation, and prevents axial air leakage. It is said to reduce air leakage by 30% compared to competing standard high-pressure valves. The DMN HP rotary airlock valves are suitable for use during metering and pneumatic conveying of granular products. The configuration of the body, rotor and seals is designed to retain the best possible pocket-fill efficiency while reducing product degradation, says the company. They are supplied with a Type 316 stainless steel body and aluminum end covers to withstand wear. The HP valves are available in 8-, 10- and 12-in. models, which can handle products up to 176°F. — DMN Inc., Memphis, Tenn.