Profile: Osborn Equipment Sales, Inc. specializes in the distribution of process Material Handling & Dust Collection Equipment. Our brands include Acrison™, Columbian TecTank™, Eriez Magnetics™, Everlasting Valve™ and Flexicon™. Our 170 series volumetric feeders are designed for product cleanout without the need for disassembly or mechanical changes. These feeders self-empty and feature a discharge port for material emptying when needed. The inflatable seated butterfly valve uses air pressure to expand the seat against the disc, providing even pressure distribution for a bubble-tight seal.