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About This Item


Full Description

New in this Standard:
  • Recommended default initial field alarm and trip settings are now referenced in ANSI/HI 9.6.5 Rotodynamic Pumps - Guideline for Condition Monitoring.
  • New content on vibration criteria at the top of the motor for vertical pumps.
  • Solids-handling pumps with single-vane impellers excluded in the scope of the standard.
  • Tri-axial anvil mount removed from permanent rigid mount of transducer recommendations.
  • VS2 icon updated in Figure
  • New content on managing vibration of vertical structures recommendations.
Scope of Standard: ANSI/HI 9.6.4 pertains to evaluation of vibration when the vibration measurements are made on stationary parts associated with bearings (bearing housings) of rotodynamic pumps. It provides specific maximum allowable vibration values measured on bearing housings of rotodynamic pumps in field and factory test environments.

This standard applies to the evaluation of vibration on rotodynamic pump applications absorbing more than 2 kW (3 hp).

Content: Bearing housing vibration measurement, speeds above and below 600 rpm, vibration measurement instrumentation, vibration acceptance performance for field and factory tests, acceptance test installation and operating conditions, allowable pump bearing housing vibration, suggested vibration test report, factors affecting vibration, vibration criteria at the top of the motor for vertical pumps.

What You Will Learn/Overall Benefits:
  • Understand sustainable vibration levels for any type pump during factory test as well as some levels in the field
  • A general description of the principles to be applied for the measurement and assessment of vibration on rotodynamic pumps
Who Should Buy This Standard: Specifiers, consulting engineers, and end users involved in pump factory or field testing.

Document History

  1. HI 9.6.4-2016


    Rotodynamic Pumps for Vibration Measurements and Allowable Values

    • Most Recent
  2. HI 9.6.4-2009

    Centrifugal and Vertical Pumps - Vibration Measurements and Allowable Values, Corrected Version (2010)

    • Historical Version
  3. HI 9.6.4 (M121)

    Centrifugal and Vertical Pumps - Vibration Measurements and Allowable Values

    • Historical Version