Centrifugal Pump Vibration Analysis Alignment Data Sheet
Standardized log sheet for recording vibration analysis readings and alignment measurements on centrifugal pumps. Includes pass/fail thresholds, corrective action tracking, and sign-off.
This data sheet provides a structured method for performing vibration analysis and shaft alignment on centrifugal pumps. Regular vibration monitoring detects early signs of bearing wear, imbalance, misalignment, and cavitation. The log captures raw readings at specified measurement points, compares them against manufacturer alarm and danger thresholds, and documents corrective actions when thresholds are exceeded. Use this form in conjunction with the pump's OEM manual and your facility's vibration analysis program.
- Lock out/tag out pump motor disconnect switch and verify zero energy state before mounting sensors or making mechanical adjustments.
- Vibration data collector (e.g., Fluke 810, SKF Microlog) with accelerometer, magnetic mount, and calibrated probe.
- Laser alignment tool (e.g., Easy-Laser, Optalign) — ensure fixtures are clean and batteries charged.
- Safety glasses, hearing protection, and cut‑resistant gloves. Observe all hot‑work and confined‑space protocols if applicable.
Inspection / Log Matrix
| Status (P/F) | Inspection Item / Task | Tolerance / Threshold | Actual Reading |
|---|---|---|---|
| [ ] Pass [ ] Fail | Overall velocity (RMS) – Drive End Bearing | Alarm: >4.5 mm/s Danger: >7.1 mm/s | ______ mm/s |
| [ ] Pass [ ] Fail | Overall velocity (RMS) – Non-Drive End Bearing | Alarm: >4.5 mm/s Danger: >7.1 mm/s | ______ mm/s |
| [ ] Pass [ ] Fail | Acceleration (g) – Drive End Bearing (high freq) | Alarm: >1.2 g Danger: >2.0 g | ______ g |
| [ ] Pass [ ] Fail | Shaft alignment – Angular misalignment (coupling) | Max 0.05 mm / 100 mm | ______ mm/100mm |
| [ ] Pass [ ] Fail | Shaft alignment – Parallel offset (coupling) | Max 0.10 mm | ______ mm |
| [ ] Pass [ ] Fail | Foundation / baseplate condition (visual & acoustic) | No cracks, loose bolts, or soft foot detectable | ✓ / ✗ |
Defect / Corrective Action Log
| Date / Time | Item # | Issue Identified | Corrective Action Taken | WO # |
|---|---|---|---|---|
| ___/___/_____ | _______ | _______________________________ | _______________________________ | _______ |
| ___/___/_____ | _______ | _______________________________ | _______________________________ | _______ |
By signing below, the inspector verifies that all items have been checked according to the manufacturer's specifications and facility safety standards.