Casing and Impeller Wear Rings - ANSI Accredited Standards Developer Information - EASA | The Electro•Mechanical Authority
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For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
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ANSI Accredited Standards Developer Information

Casing and Impeller Wear Rings

  • November 2025
  • Number of views: 4257
  • Article rating: 5.0

ICC InternationalGene Vogel
EASA Pump & Vibration Specialist

The wear ring clearance in a centrifugal pump is a critical factor in the efficiency of the pump. The repair process often includes replacement of casing and impeller wear rings. This presentation focuses on the proper clearances, materials and installation process for centrifugal pump wear rings.

Primary topics are:

  • Determining if the wear ring as-found condition is acceptable
  • Recommendations for wear ring clearances if manufacturer’s data is unavailable
  • Consideration of possible material selection for replacement wear rings
  • Tips for installing replacement wear rings

This presentation is intended for pump technicians, engineers, supervisors and managers. The content will be beneficial for persons of all skill levels.

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