AMCA Revises Standard for Fan Balance Quality and Vibration

Air Movement and Control Association (AMCA) International Inc. has announced the revision of ANSI/AMCA Standard 204, “Balance Quality and Vibration Levels for Fans”.

Covering fans with rigid rotors generally found in commercial-building heating, ventilating, and air conditioning; industrial-process applications; mine/tunnel ventilation; and power-generation applications, ANSI/AMCA Standard 204 underwent minor revisions, including:

  • Reformatting to adhere to current style.
  • Changes to definitions for alignment with other standards.
  • A new suggested frequency range for overall vibration measurement.
  • Updates to the latest version of referenced standards.
  • Inclusion of an example showing a typical calculation of overall vibration level from a vibration signature captured using a fast-Fourier-transform (FFT) analyzer.

To purchase ANSI/AMCA Standard 204-20, visit the AMCA online store.

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