Comparison of features and limitations, as well as recommendations when to use one or the other…
| Actuated Ball Valves |
Air Shutoff Valves |
| Advantages of Ball Valve |
Advantages of Air Shutoff |
 |
 |
- Higher pressures & flow rates
- Higher back pressure permitted
- Can revert to manual valve, or convert to electric actuator
- Zero deadleg when fully open
- Light weight
- Manual Override
|
- Absolute positive closure in extreme conditions.
- Globe design means no liquid trapped in ball* or other cavities when valve is closed
- Fail-Dry early warning safety vent feature
- Actuation mechanism is integral to the valve
- Smooth operation, direct cycling
|
| Features common to both: |
- Fail-safe versions available
- Visual position indication
- Limit Stop available
- Very high cycle life
- Can be operated pneumatically or hydraulically
|
- Uses PTFE parts for inherent lubricity
- Outstanding performance in corrosive environments
- Available with flanged, socket, or threaded connections
- Can be customized for special applications
|
*Note that a vented ball is readily available on all Plast-O-Matic ball valves to prevent gas entrapment.
Please note that the unique characteristics and positive features listed above refer only to Plast-O-Matic products.
