Critical Hydraulic Eccentricity Estimation in Vertical Turbine Pump Impeller to Control Vibration

Table 3

Vibration displacements when impeller is with hydraulic unbalance.

Sr. no.	Hydraulic eccentricity 688 (μm)	Bell mouth	Shaft	Impeller	Suction bearing	Discharge bend	Motor
Maximum vibration displacement (μm)
1	Numerical results	296	239	222	173	57	137
2	Test results	—	—	—	—	—	148
Maximum vibration displacement (μm)
1	Numerical results	364	298	279	222	64	141
2	Test results	—	—	—	—	—	159