Have you ever seen a centrifugal pump used in this way on site?
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As the title suggests, if one of them fails, the other two also have to stop working; the closer a pump shaft is to the motor, the more important it is to consider its strength. I’ve seen metering pumps connected in this way.
This post was last edited by 3983596_FPPZ on 2018-9-23 08:16. I have seen metering pumps with this type of connection; due to the large shaft diameter, which provides a high safety margin, and the fact that the motor power is not high, the pumps connected in series all have the same size, allowing their components to be interchanged, with the phases offset from each other. But I’ve never seen center-opening pumps connected in series. Why not use larger center-opening pumps as a substitute? Is it by disconnecting and reconnecting the coupling between the two pumps that the output flow rate is adjusted (for variable-flow operation)?
For double-suction pumps, I’ve really never seen this type of connection; only the pump that is farthest away from the motor can fail without affecting operation. If a pump that is in the middle or closer to the motor fails, then it’s necessary to stop everything for repairs. . If one pump vibrates due to abnormal operation, it will not have an impact on the other two pumps. . . I don’t understand what the purpose of this design is
I’ve never seen anything like this; such a setup makes usage and management much more difficult.
How can it be connected in this way? It’s too troublesome to carry out maintenance once; it would be better to use a variable-frequency motor to control the flow rate by selecting a higher flow capacity
This design is quite good. I’m curious to see how the quality will be once it goes into production. Looking forward to it
I really haven’t seen this kind of connection method before
The image above looks like a diaphragm pump, while the one below is a piston pump.