Stiffness issues of the induced draft fan

2009-04-01View Original

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When using large-sized exhaust fans (4-73-20D), insufficient blade stiffness can cause deformation, rendering the impeller unusable. I’ve heard that some fan manufacturers add an intermediate disk; could someone who has experience with this please explain how it is installed? Thank you!

Reply #22009-04-01

The Canadian-style disk involves adding a plate between the wheel cover and the wheel disc of the impeller, which is then welded to connect the two blades. This can increase the strength of the impeller.

Reply #32009-05-22

Which other fans also need a middle disk added?

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Stiffness issues of the induced draft fan

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