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How to pronounce butterfly valve in English?

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Type Words
Type of valve

Examples of butterfly valve

butterfly valve
Because the engines do not need to control air volumes, they lack a butterfly valve in the intake tract.
From the en.wikipedia.org
The throttle is typically a butterfly valve.
From the en.wikipedia.org
This is achieved by partial closing of an internal butterfly valve within the exhaust at the point where the four primary pipes from the cylinders join.
From the en.wikipedia.org
Each bar is paired with a resonator tube having a motor-driven butterfly valve at its upper end, mounted on a common shaft, which produces a tremolo or vibrato effect while spinning.
From the en.wikipedia.org