Posi-flate manufactures a complete line of inflatable seated butterfly valves for handling a wide variety of dry bulk granular solids, liquids and gases. Standard sizes are from 2 inch (5 mm) to 30 inch (750 mm) and are offered in a wide variety of construction materials. Stainless steel, ductile iron and aluminum construction is available as standard equipment. Standard finishes include urethane coating, nylon powder coating, epoxy coating, highly polished stainless steel discs and bodies plus almost any custom paint type and color.