The Posi-flate Inflatable Seat Butterfly Valve uses air pressure to inflate the seat against the disc and create a bubble-tight seal, resulting in minimal friction as the disc opens and closes. The Posi-flate inflatable seat automatically compensates for wear, providing longer valve life.
The resilient seated butterfly valve forces the disc into the static seat, causing impingement between the disc and seat, resulting in excessive damage, premature wear, and valve leakage.
The Posi-flate inflatable seated butterfly valve offers less friction, low torque, less wear, and longer valve life!
Unlike other valves that seal with friction, Posi-flate's unique butterfly valve uses an inflatable seat to seal with air pressure. Thus it requires less torque and a smaller actuator, resulting in lower overall valve cost. Plus, the seat automatically compensates for wear, providing longer valve life.
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.
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.
Open, unsealed
Before the valve opens, the seat deflates. The disc is then free to rotate to the open position.
Posi-flate inflatable seated butterfly valve applications include:
- Material Control and Cut-Off Valve Applications
- Double Dump Valve Assembly Applications
- Dryer Valve Applications
- Outlet Valve Applications
- Pneumatic Conveying Valve Applications
- Vacuum Valve Applications
For more information about Posi-flate inflatable disc butterfly valves, contact Mead O'Brien at (800) 892-2769 or visit http://www.meadobrien.com.
