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airspirit · 07-10-2002, 04:40 PM

I do have experience with pump setups from my stint in the Navy (blech). Centrifugal pumps build backpressure easily since there is no real "force" being put to the fluid. Unless you are shrinking the size of the tubing for the parallel section and running two pumps with identical flow rates you never want to run parallel with centrifugal pumps. It would be a whole different story if these were volumetric; then you'd want/NEED them to be parallel. In a case such as this, series is the only way to go.

07-10-2002, 04:40 PM	#24
airspirit Been /.'d... have you? Join Date: Jul 2002 Location: Moscow, ID Posts: 1,986	I do have experience with pump setups from my stint in the Navy (blech). Centrifugal pumps build backpressure easily since there is no real "force" being put to the fluid. Unless you are shrinking the size of the tubing for the parallel section and running two pumps with identical flow rates you never want to run parallel with centrifugal pumps. It would be a whole different story if these were volumetric; then you'd want/NEED them to be parallel. In a case such as this, series is the only way to go.