![]() ![]() Standard valve sizes range from 2″ (50mm) to 24″ (600mm) and fit both ANSI and metric flanges. The seat is designed for heavy duty applications and higher operating pressures. The Posi-flate Series 585/586 inflatable seated butterfly valves are designed for the most severe conditions. For dry solids, gases and slurry applications, the Posi-flate inflatable seated butterfly valve is unsurpassed. In fact, a Posi-flate valve life of one to three million cycles, even in extremely abrasive applications, is not uncommon. In actual comparison tests and documented field applications, the Posi-flate butterfly valve outperformed all other valves. Substantially less torque is required to open and close the Posi-flate butterfly valve, thus a smaller actuator can be used resulting in lower overall valve cost. ![]() This is in contrast to conventional butterfly valves where disc impingement leads to shaving of the seat, decreasing the overall performance and valve life. Because the seat makes only casual contact with the disc during valve opening and closing, there is minimal disc impingement. Posi-flate’s unique butterfly valve design uses air pressure to expand the seat against the disc, providing even pressure distribution for a bubble-tight seal, every time. Inflatable Seated Butterfly Valves Heavy Duty Series Less friction, low torque, less wear, longer life! ![]()
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