Vibration conditions of AY type centrifugal pumps
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I would like to ask: for AY-type centrifugal pumps, where both the inlet and outlet are located above the pump, what is the vibration standard? Is it also below 3.0 mm/s? A centrifugal pump of model AY was measured on-site; the radial vacuum was 3.7 mm/S, with no issues detected.
The vibration value of one AY80-100*2 unit in our factory is 1.8 MM/S; it should be below 2.8 mm/S, right?
Is it the bearing end that provides support or the thrust bearing end? It wasn’t specified clearly. A vibration speed of 3.7 per second isn’t considered to be above the limit, right?
3.7mm/S is acceptable. Furthermore, in addition to alignment, there are many other factors that affect the vibration amplitude, such as an unstable foundation, rotor imbalance, bearing wear, and motor-related issues.
Pumps with two-stage impellers~During the next major overhaul, the dynamic balance of the rotor must be checked first.