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

Table 1

Test data of vibration displacements.

Vibration readings on vertical turbine pumps, displacements (μm)
Pump location number	Motor NDE		Motor DE		Pump DE
	1	62	51	49	34	28	45
2	148	159	404	376	281	254
3	99	119	59	61	55	41
4	58	41	37	29	22	41
5	77	72	64	49	35	34