Overview:

This standard applies to rotodynamic pumps and covers the evaluation of vibration when the vibration measurements are made on stationary parts associated with bearings (bearing housings). It provides specific maximum allowable vibration values measured on bearing housings of rotodynamic pumps in field and factory test environments.

Topics covered in this standard include bearing housing vibration measurement, speeds above and below 600 rpm, vibration measurement instrumentation, vibration acceptance levels 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.

The Hydraulic Institute is currently collecting vibration data to support adding more equipment types in the scope of the standard. Click here to learn more.

What’s New:

This standard supersedes the ANSI/HI 9.6.4-2016 edition. Updates in the new edition include:

• Clarified requirements on factory and field acceptance tests.
• New guidance on vibration criteria for horizontal motors.
• New guidance for below-ground vibration levels for vertically suspended pumps.
• Vibration test requirements for submersible pumps previously located in ANSI/HI 11.6.
• New guidance for vibration collection during pump acceptance testing.

Print copies typically ship within 3 business days.

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