Posi-flate inflatable seated butterfly valves will be on display in Booth No. 2086 at CastExpo. The Posi-flate valve is ideally suited for abrasive materials, such as sand, feldspar, fly ash, and most other dry, granular materials, which reduce valve life. The inflatable seat design provides a better seal by utilizing air pressure to expand the seat against the disc, providing more sealing area and an even pressure distribution against the disc every time. The seat automatically compensates for wear when it inflates against the disc, extending valve life considerably. The valves are available in a wide variety of construction materials, including stainless steel and aluminum, and fit both ANSI and metric flanges. Posi-flate will be exhibiting valves from 2-30 in. in size with a working display demonstrating the inflatable seat in operation.