A centrifugal pump vibrates excessively during operationUpon disassembling the pump it is found that the impeller is out of balanceWithout an available spare, you should （）.
1、The advantage of a centrifugal pump as
The advantage of a centrifugal pump as compared with a reciprocating pump is that （）.Adischarge is continuousBit has no internal valvesCupon accidental closing of discharge valve, excessive pressure will not build upDall of the above are true
2、A multistage centrifugal pump can be B
A multistage centrifugal pump can be BEST described as having （）.Atwo or more impellers housed together in one casing and mounted on a singl...
3、A double suction centrifugal pump impe
A double suction centrifugal pump impeller has been installed in the reverse direction, and will （）.Ahave a greater head capacityBoperate with...
4、A centrifugal pump produces flow with
A centrifugal pump produces flow with a resulting discharge head by energy conversionIt is typical for the energy conversion to follow the orde...
5、The capacity of a centrifugal pump can
The capacity of a centrifugal pump can be increased by the installation of a larger diameter impeller Another means of increasing the pump cap...
6、If the capacity of a centrifugal pump
If the capacity of a centrifugal pump decreases gradually over a long period of time, you should replace the （）.Apacking glandBmechanical sealsClantern ringsDwearing ring