Andritz Sprout-Bauer's modular rotary valves offer a wide range of sizes, models and materials of construction for versatile use in most pneumatic conveying and feeding systems. Andritz Sprout-Bauer valves provide rugged, trouble-free performance as feeders and air locks in both vacuum and low-pressure postive systems.\r\n\r\nAndritz Sprout-Bauer's modular concept lets you stock fewer parts, reducing inventory costs. And Andritz Sprout-Bauer backs its valves with experienced service technicians and fast, dependable delivery of valves, systems and replacement parts.