The standard applies to pumps with:
It does not cover positive displacement pumps, reciprocating pumps, or pumps smaller than 1 kW.
Ensure pump reliability with the definitive vibration evaluation standard for rotodynamic pumps (centrifugal, mixed flow, axial flow) operating in the 2 Hz to 1 kHz range. iso 10816-7 pdf download
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The standard divides pump vibration severity into four zones: The standard applies to pumps with:
| Zone | Description | Action | |------|-------------|--------| | A | Good (newly commissioned) | No action needed | | B | Acceptable for long-term operation | Monitor normally | | C | Unsatisfactory – may cause damage | Schedule maintenance | | D | Unacceptable – immediate action required | Shutdown and repair |
Limits depend on pump type (e.g., vertical vs. horizontal), power rating, and mounting stiffness. It does not cover positive displacement pumps, reciprocating
A: The standard applies at rated speed. For VFD-driven pumps, measure at the speed where vibration is highest—typically around resonant frequencies.