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Questions?

For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

Why Buy an Expensive Mechanical Seal?

  • July 2026
  • Number of views: 798
  • Article rating: No rating

The seal failed and you replaced it. But it failed again and your seal supplier explained that the replacement seal you bought was a lower cost seal, and they have more expensive seals that might hold up better. So, you bought a more expensive seal, but it failed too. What went wrong?

¿Por qué comprar un sello mecánico caro?

  • July 2026
  • Number of views: 396
  • Article rating: No rating

El sello falló y usted lo reemplazó. Sin embargo, volvió a fallar y su proveedor le explicó que el repuesto que había comprado era barato y que disponían de sellos más caros que podrían ofrecer un mejor rendimiento. Así que compró un sello más costoso, pero también falló. ¿Qué salió mal?

Casing and Impeller Wear Rings

  • November 2025
  • Number of views: 4248
  • Article rating: 5.0
FREE for Members of EASA

This presentation focuses on the proper clearances, materials and installation process for centrifugal pump wear rings.

Variable Speed Drive for Pump Testing

  • November 2025
  • Number of views: 3125
  • Article rating: No rating

Equipping a pump test facility for variable speed operation can provide greater flexibility and expand opportunities to evaluate pump performance.

Variador de velocidad para pruebas de bombas

  • November 2025
  • Number of views: 2120
  • Article rating: No rating

Emplear velocidad variable durante las pruebas puede brindar mayor flexibilidad y ampliar las oportunidades para evaluar el rendimiento de las bombas.

Pump Impeller Balancing

  • May 2025
  • Number of views: 5366
  • Article rating: 4.0
FREE for Members of EASA

The impeller is the primary mass component on most pump rotors. Impeller balancing is an important component of pump repair. Proper balancing procedures will ensure the repaired pump will operate with a minimum of vibration.

Smells Like Money to Me

Sewage and wastewater treatment pumps can be profitable

  • March 2025
  • Number of views: 3391
  • Article rating: No rating

Sewage and wastewater treatment pumps are common machines repaired in EASA service centers. While both odor and biohazard are real problems, there are ways to deal with each, and service centers looking to broaden their repair market should not shy away from a profitable market because of the odor and biohazard. 

Para mí, huele a dinero

Las bombas de tratamiento de aguas residuales pueden ser rentables

  • March 2025
  • Number of views: 5137
  • Article rating: No rating
Las bombas de tratamiento de aguas residuales y residuales son máquinas habituales que se reparan en los centros de servicio de EASA. Si bien tanto el olor como el riesgo biológico son problemas reales, hay maneras de abordar cada uno de ellos, y los centros de servicio que buscan ampliar su mercado de reparación no deberían rehuir un mercado rentable debido al olor y el riesgo biológico.

Submersible Pump Stator Oil Guidelines

  • November 2024
  • Number of views: 6126
  • Article rating: 5.0

In addition to seal oil, some submersibles have an oil filled stator cavity. The oil in the stator cavity very efficiently transfers heat from the stator winding and core, and especially from the rotor, to the pump casing where convection carries it to the pumpage in which the pump is submerged. While the specifications for seal oil are fairly flexible, stator cavity oil has more constraints.

Pautas Para el Aceite del Estator de las Bombas Sumergibles

  • November 2024
  • Number of views: 3857
  • Article rating: 4.0

Además del aceite de sellado, algunas bombas sumergibles tienen una cavidad del estator llena de aceite. Este aceite transfiere de manera muy eficiente el calor desde el devanado y el núcleo del estator, y especialmente desde el rotor, hasta la carcasa de la bomba, donde la convección lo lleva al líquido de bombeo en el que está sumergida. Si bien las especificaciones para el aceite de sellado son bastante flexibles, el aceite de la cavidad del estator tiene más restricciones.

EASA Rewind Study cover

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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