| 21. | The lower gages had horizontal butterfly valves in size which were used for emptying the lock chamber.
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| 22. | The throttle is typically a butterfly valve.
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| 23. | The butterfly valve is simply a circular disc fitted on a spindle, fitting inside the pipe work.
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| 24. | Each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end.
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| 25. | Because the engines do not need to control air volumes, they lack a butterfly valve in the intake tract.
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| 26. | These engines had both side-and peripheral-located intake ports switched with a butterfly valve for low-and high-RPM use ( respectively)
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| 27. | Unlike the petrol engine, diesels lack a butterfly valve ( throttle ) in the inlet system, which closes at idle.
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| 28. | In 1957, the Spanish company started producing gate valves, check valves, needle valves and butterfly valves for the marine industry.
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| 29. | Icing may also cause jamming of the mechanical parts of the carburetor, such as the throttle, typically a butterfly valve.
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| 30. | No . 2004 was fitted with an experimental butterfly valve blastpipe bypass, manually activated to prevent fire-lifting at high cutoffs.
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