Questions about Roots blowers
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The flow rate indicated on the ROTARY VANE BLOWER nameplate generally refers to the operating condition value or the standard condition value? What is the difference in performance between two-blade and three-blade impellers?
It shall be in accordance with the instructions. It belongs to the category of positive-displacement fans; it is related to stabilizing air flow fluctuations and is associated with the rotational diameter.
Under standard conditions, the three-leaf design results in a higher pressure rise and less airflow pulsation.