Everyone knows that centrifugal pumps can be connected in series and parallel, right? But since the pressure cannot be achieved, can volumetric pumps be connected in series and parallel? ? Urgent! Urgent! Urgent! !
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Everyone knows that centrifugal pumps can be connected in series and parallel, right? But since the pressure cannot be achieved, can volumetric pumps be connected in series and parallel? ? For example, what potential problems could arise if two metering pumps or plunger pumps are connected in series? ? ? Urgent! Urgent! Urgent! !
Are there any other good methods to increase the pressure of a pump by connecting pumps in series? ?
Series connection is useless for positive displacement pumps; use a pump with greater load-bearing capacity instead. The head of a positive displacement pump is determined by the back pressure, and theoretically it can reach very high values. In practice, pressure cannot be applied to the fruit, as it is limited by the driving force and the load-bearing capacity of the shell.
Centrifugal pumps can be connected in series to increase pressure, while positive displacement pumps cannot be connected in series
Positive displacement pumps probably won’t work, as they can cause cumulative pulsating vibrations. If you don’t want to replace the pump with a larger one, you can add an intermediate tank at the inlet of the second positive displacement pump as a buffer
Sir, based on the principle explained on the second floor, is there any fundamental difference between doing this and setting up just one unit? ? Thank you, hero!
There is a difference: when two pumps are connected in series, it operates on the principle of a vortex pump, which involves multi-stage pressure enhancement. If the pipeline is very long, series connection is necessary; it helps to reduce the required pressure rating of the pipes. However, there are considerations involved in series connection – if done improperly, the pumps may suffer from cavitation
Sir, is there a fundamental difference between two positive displacement pumps connected in series and one positive displacement pump?
The purpose of series connection is nothing other than to increase the head. For positive displacement pumps, the head is theoretically infinite; however, due to limitations imposed by the material’s tolerance levels, the head is determined by the pressure at which safe operation is possible. Positive displacement pumps are not recommended to be connected in series, as their flow rate is fixed and not as flexible as that of centrifugal pumps. Series connections are prone to problems