| 1. | Straight-through flow valves, such as rotary-shaft ball valves, are typically high-recovery valves.
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| 2. | Rotary control valves, butterfly valve and ball valves are good examples.
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| 3. | At the bottom of the TDU is a large ball valve.
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| 4. | Daniel Ball Valve and Orbit Valve International were acquired into Cooper Cameron Valves.
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| 5. | Butterfly, ball valves, and plug valves are often quarter-turn valves.
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| 6. | "Three-way ball valves " come with a T-or L-shaped fluid passageways inside the rotor.
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| 7. | Another design aspect is the ball valve seat which is critical for performance stability.
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| 8. | This effect is more dramatic in caged-ball valves than in tilting-disc and bileaflet valves.
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| 9. | The ball in ball valves rotates within plastic seats.
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| 10. | Typically, caged-ball valves have a low amount of regurgitation as there is very little leakage.
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