Butterfly valve 585, 586 series

distributioninflatable-seal

Inflatable Seated Butterfly Valves Series 586 Inflatable Seated Butterfly ValveHeavy Duty Series 585, 586 Less friction, low torque, less wear, longer life. 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. Because the seat makes only casual contact with the disc during valve opening and closing, there is minimal disc impingement. This is in contrast to conventional butterfly valves where disc impingement leads to shaving of the seat, decreasing the overall performance and valve life.