Ideal for controlling dry bulk material in gravity flow, dilute phase or dense phase pneumatic conveying applications. Vortex slide gates are designed and engineered with two main principals in mind:  1. extend the service life of the valve and 2. perform maintenance without taking the valve out of line. Vortex valves serve many industries including chemical, cement, coal, food, frac sand, grain, minerals, petrochemical, pharmaceutical, plastics, polymer, rubber and mining.