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qet77 · 03-29-2006, 11:20 PM

These pumps are of the centrifugal variety and therefore they do not have the suction you are thinking of that would benifit a system if it were placed after the water blocks. A positive displacement pump would be necessary to get the full effect of placing a pump after the waterblocks, typical positive displacement pump are of the roots, screw, rotor, and parastaltic variety (I am sure there are others as well). These types of pumps will displace a given volume for each rotation as opposed to providing a volume based on the inlet pressure and volume, and the rpm of the spinning compressor (This means that if you plug a centrifugal pump nothing would really happen aside from excessive load on the motor, but if you blocked a positive displacement pump something would break as you are stopping a component in a system with mechanical connections).

I am not an engineer so my understanding of this may be somewhat limited but I feel the above is a reasonable explaination of the concept.

03-29-2006, 11:20 PM	#14
qet77 Registered User Join Date: Feb 2006 Location: a Posts: 8	Re: Water Flow Characteristics These pumps are of the centrifugal variety and therefore they do not have the suction you are thinking of that would benifit a system if it were placed after the water blocks. A positive displacement pump would be necessary to get the full effect of placing a pump after the waterblocks, typical positive displacement pump are of the roots, screw, rotor, and parastaltic variety (I am sure there are others as well). These types of pumps will displace a given volume for each rotation as opposed to providing a volume based on the inlet pressure and volume, and the rpm of the spinning compressor (This means that if you plug a centrifugal pump nothing would really happen aside from excessive load on the motor, but if you blocked a positive displacement pump something would break as you are stopping a component in a system with mechanical connections). I am not an engineer so my understanding of this may be somewhat limited but I feel the above is a reasonable explaination of the concept.