ISO 10816-7:2009

Overview

ISO 10816-7:2009 specifies procedures for evaluating mechanical vibration of rotodynamic pumps for industrial applications by measurements on non-rotating parts (primarily bearing housings). It applies to pumps with nominal power above 1 kW, provides guidance for in‑situ and factory acceptance tests, and also gives general information for measuring relative shaft vibration. The standard is intended to support operational monitoring, acceptance testing and diagnostic/condition‑monitoring activities.

Key topics and technical requirements

• Scope and exclusions
  • Covers rotodynamic (centrifugal and similar) pumps > 1 kW.
  • Excludes reciprocating and positive-displacement pumps, certain high‑power hydro plants, solids/slurry and submersible pumps.
• Measurement quantities
  • Primary quantity: r.m.s. vibration velocity (mm/s) measured on non‑rotating parts.
  • For speeds below 600 r/min, peak‑to‑peak displacement (µm) is additionally required.
• Instrumentation and frequency range
  • Instruments must meet ISO 2954 and ISO 10816‑1 requirements.
  • Typical broadband frequency range: 10 Hz to 1 000 Hz; for low‑speed pumps the lower limit is often 2 Hz.
  • For very high‑speed or diagnostic work, wider bandwidth (up to ~2.5× blade‑passing frequency) may be needed.
• Measurement locations and directions
  • Vibration measured at bearing housings, normally in two orthogonal radial directions (horizontal/vertical) and where relevant an axial direction.
  • Locations should represent bearing housing motion without local resonance/amplification.
• Evaluation and limits
  • Defines evaluation zones and limits for bearing housing vibration, and gives guidance for alarm and trip settings (see Annex C).
  • Distinguishes pumps by power ranges (notably up to and above 200 kW) for some evaluations.
• Monitoring
  • Supports both periodic portable measurements and continuous online monitoring; continuous monitoring is recommended for safety‑critical pumps.
• Annexes
  • Include numerical evaluation zone limits, guidance on shaft vibration for sleeve bearings, example alarm/trip setting, and considerations for support flexibility and orientation.

Applications

• Acceptance testing at manufacturer or plant test facilities.
• Condition monitoring and predictive maintenance programs.
• Troubleshooting and diagnostics following vibration anomalies.
• Defining alarm/trip thresholds and operational limits to protect pump systems and connected equipment.
• Specifying vibration measurement protocols in procurement and contractual acceptance criteria.

Who uses this standard

• Pump manufacturers and test laboratories
• Plant and rotating‑equipment engineers
• Maintenance teams and vibration analysts
• OEMs, reliability and asset‑management professionals
• Safety and commissioning engineers

Related standards

• ISO 10816‑1 (general guidelines)
• ISO 10816‑3, ISO 10816‑5 (other machine types)
• ISO 7919‑1 (shaft vibration measurements)
• ISO 2954 (vibration instrument requirements)
• ISO 13373‑1 (condition monitoring and analysis)
• ISO 5348 (transducer mounting guidance)

Keywords: ISO 10816-7, mechanical vibration, rotodynamic pumps, bearing housing vibration, r.m.s. vibration velocity, pump vibration measurement, condition monitoring, acceptance test, vibration instrumentation.