What fraction of the pump work is lost across the valve

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Revisiting Example 20.8, suppose the flow was controlled using a plug-disk globe valve and the initial design in the example assumed that the valve is fully open. What range of flow rates can be achieved if the valve can be throttled down to quarter open? When the valve is quarter open, what fraction of the pump work is lost across the valve?

Reference no: EM131157411

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What fraction of the pump work is lost across the valve : When the valve is quarter open, what fraction of the pump work is lost across the valve?
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