The Difference Between Roots Blower and Centrifugal Fan By Xianrun Blower
6. Roots blower is suitable for constant flow condition. Because the roots blower belong to the constant flow fan, and the main parameter is air volume, output air pressure changes with pipeline and the load, so air volume change have little change.
Roots blower is a kind of high pressure blower as well as positive displacement blower, air volume and revolutions are in proportion, and the air flow from the suction side to the discharge side.
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7.Centrifugal fan is suitable for constant pressure condition. Centrifugal fan belongs to constant pressure fan, the main parameter is air pressure, the output air volume changes with pipe and load, while air pressure changes little.
The centrifugal fan air pressure is not as high as roots blower. Air compression process is worked by several impeller under centrifugal force.
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8. Centrifugal fan is square torque, with roots blower basically belongs to the constant torque.
9. Roots blower have much bigger noise than centrifugal fan during the working.
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