VIBRATION ANALYSIS & TECHNICAL REPORTS
Vibration analysis identifies developing failures (unbalance, misalignment, looseness, bearing defects and cavitation) before they stop your production. Hydro Pumps provides field measurement, spectrum diagnosis and technical reports with an action plan.
What vibration analysis reveals
Every mechanical failure has its own signature in the frequency spectrum — and every one of them has a known correction.
Unbalance
Dominant 1× RPM component — the most common cause of vibration. Correction: dynamic balancing on the bench.
Misalignment
2× RPM signature with elevated axial vibration. Correction: laser alignment of the pump-driver set.
Bearing defects
Characteristic race, ball and cage frequencies detected before catastrophic failure — with a planning window for replacement.
Mechanical looseness
Multiple harmonics that expose loose bearings, loose baseplates or internal component wear.
Cavitation and hydraulic issues
Broadband noise and random vibration indicating insufficient NPSH, recirculation or off-design operation.
Complementary thermography
Thermographic inspection of bearings, couplings and motors — abnormal heating confirms and locates the mechanical or electrical problem.
From measurement to action plan
How the diagnosis works
Measurement happens in the field, with the pump running, at the bearing points — no production stop. The signal is processed into a frequency spectrum (FFT), where each mechanical failure appears as a characteristic signature: unbalance at 1× RPM, misalignment at 2× RPM, bearings at their defect frequencies.
Severity is evaluated with reference to ISO 10816-7, the part of the vibration standard dedicated to industrial rotodynamic pumps, which establishes acceptance zones by machine class. The result is not an arbitrary number but an objective classification of equipment condition.
The technical report your operation receives
Every analysis produces a documented report: measured spectra, cause diagnosis, classified severity, technical recommendation and intervention priority. It is the document that turns reactive maintenance into planned maintenance — and that justifies shutdown decisions to management.
Since Hydro Pumps also carries out the correction — balancing, alignment, bearing replacement, seal repair — the loop closes completely: diagnosis, plan and execution under the same technical responsibility.
Vibration analysis questions
What maintenance managers ask before setting up predictive maintenance routes.
01Do I need to stop the pump for the analysis?
No. Measurement is taken with the equipment in normal operation, at the bearing points. That is what makes vibration analysis the core predictive maintenance tool: the diagnosis does not interfere with production.
02How often should my pumps be measured?
It depends on criticality: critical equipment calls for monthly or bimonthly routes; auxiliary equipment, longer intervals. Our engineering team builds the route plan according to each asset's impact on your operation and adjusts the frequency as history accumulates.
03Which standard do you use to classify severity?
ISO 10816-7, the part of the vibration standard series dedicated specifically to industrial rotodynamic pumps. It defines objective acceptance zones by machine class, removing guesswork from the intervene-or-keep-running decision.
04Does the analysis detect cavitation?
Yes. Cavitation shows up in the spectrum as broadband random vibration, distinct from mechanical failure signatures. Combined with process data (flow, suction pressure), the analysis confirms the diagnosis and guides the hydraulic correction — before erosion destroys the impeller.
Related services and resources
Dynamic Balancing
The correction for the most common diagnosis: unbalance at 1× RPM.
24/7 Field Service
Field emergency response when vibration has already become failure.
Centrifugal Pump Maintenance
Complete preventive and corrective maintenance for centrifugal pumps.
Guide: Vibration Analysis
What vibration measurement detects in pumps and when to measure.
Want to see the failure before it stops the plant?
Set up vibration analysis routes backed by technical reports and action plans from our engineering team.