posi-flate butterfly valves
operation products applications technical info sales news contact us
    

How Posi-flate Butterfly Valves Work

    Closed, unsealed
    As the valve rotates into the closed position, the disc makes only casual contact with the seat, reducing friction, wear and torque requirements.
    Posi-flate valve control - closed, unsealed
    Closed, sealed
    After the valve is closed, the seat inflates against the disc providing more sealing surface and an even pressure distribution against the disc.

     

    Posi-flate valve control - closed, sealed

    Open, unsealed
    Before the valve opens, the seat is first deflated. The disc is then free to rotate to the open position.
    Posi-flate valve control - open, unsealed
 

operation | products | applications | technical info | sales | news | contact us | home
 

© 1999-2003 Posi-flate. All rights reserved. Last updated 12/22/2009
Questions about this website? Contact webmaster@posiflate.com