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nominal diameter

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lahcen

lahcen

Mechanical
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Oct 23, 2013
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Hi guys;
I want to know the relation between the real diameter and the nominal diameter of centrifugal compressor; for example for BCL307 (the real diameter of impeller is 370mm but the nominal diameter is 300mm).
Thanks.
 
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Is it mentionned nominal diameter of impeller?
 
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Hi rotw;
for BCL 307 (after the Operating manual of the machine, 30 it is the nominal diameter =300mm,but the real diameter of impeller is 370mm)
Thanks.
 
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They have standardized frame sizes for the casing. In this particular case, 300 size can accomodate a range of impeller diameters [D2min,D2max]. Note that this range may vary by impeller type (2D or 3D) and/or family.
An impeller of 370mm should be inside this range and fits inside the selected casing size.

Actually this is more of a tagging issue. It matters if you ask a reference list for example, you would want to compare BCL 30x.
 
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