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Construction Difference between compressor and Pump

Construction Difference between compressor and Pump

Construction Difference between compressor and Pump

(OP)
I am a recent graduate in mechanical engineering as far as the bookish knowledge is concerned i know what pump is and what is compressor, their thermodynamics etc but since i haven't seen any compressor or Pump rotor i wonder what would be the construction difference between impeller/rotor of compressor and pump?

Can a compressor especially centrifugal be used as pump?

RE: Construction Difference between compressor and Pump

Hi,
No. Pump is for liquids while compressor is for gas.

RE: Construction Difference between compressor and Pump

(OP)
@CaracasEC....sir i know about this, i wonder since centrifugal compressor doesn't physically compress the gas it increases the pressure because of the volute casing and all that and centrifugal pumps does the same.
i am supposing that pump impeller would be much more thicker than the compressor one. i mean if i show some one an impeller can he make the decision just by looking at it that it belong to whom.

RE: Construction Difference between compressor and Pump

Hi usamasabir,
It is the impeller that generate the head of any compressor or pump not the volute casing.

RE: Construction Difference between compressor and Pump

(OP)
@CaracasEC thanks sir my mistake.

RE: Construction Difference between compressor and Pump


Just go to the web sites of some pump makers and compressor makers and you will see the difference or similarity of pump impellers and compressors. Low presure/head compressors are normally called blowers and operate at low speed.

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