HYPO Continuous Dosing Pump Mechanical Looseness
Vibration analysis of a HYPO Continuous Dosing Pump revealed high amplitudes and a prominent 5× running speed peak, indicating mechanical looseness. Inspection found impeller wear, friction marks, and shaft fit issues, prompting recommendations for bearing and impeller re-fitment, dynamic balancing, and load testing.
🔧 Vibration Analysis– HYPO Continuous Dosing Pump
3000 RPM | Centrifugal | Overhung, Semi-Open Impeller (6 blades, 5 back vanes)
Recent vibration data (Velocity Spectrum & TWF) flagged high amplitudes—particularly a prominent 5× running speed peak, consistent with a mechanical looseness signature.
🛠️ Inspection findings:
· Impeller shows edge wear on blades and clear friction marks on back vanes, likely contributing to elevated 5× harmonics via rubbing.
· Shaft fit inspection revealed both impeller looseness and inner bearing race play—confirmed by axial wobble during manual test .
These mechanical issues align with the spectral pattern: multiple harmonics, increased broadband energy, and impulsive TWF response.
🔍 Action: Recommend immediate bearing and impeller re-fitment, dynamic balancing post-repair, and reevaluation under load to confirm resolution.
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