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Proper Repair/Rewind Practices Maintain Efficiency/Reliability of Premium Efficiency/IE3 Motors  DOWNLOAD THE EXECUTIVE SUMMARY

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Resource Library

Natural Frequency Testing – Bump Tests and Modal Analysis

  • October 2020
  • Number of views: 224
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

Anyone dealing with installed machinery, or even test running motors in the service center, will encounter instances where structural resonance is amplifying machine vibration. The machine may meet stringent specifications in one instance but exceed acceptable vibration levels in another. A good understanding of natural frequencies and the tests necessary to identify them will help solve these vexing situations.

Causes and Solutions for Leaking Pump Mechanical Seals

  • October 2020
  • Number of views: 176
  • Article rating: No rating
Article

It is commonly known that pump mechanical seals are temperamental devices that fail frequently. The fact is, mechanical seals are simple devices that are often misapplied, sometimes installed incorrectly, or perhaps installed on pumps that are not well suited for the application.

Causas y Soluciones de las Fugas en los Sellos Mecánicos de las Bombas

  • October 2020
  • Number of views: 123
  • Article rating: 5.0
Article

Pump Reliability Essentials

  • July 2020
  • Number of views: 358
  • Article rating: No rating
FREE for Members of EASA
Webinar recording

The EASA Pump Reliability Seminar is a two-day program that describes in detail the factors related to pump reliability. This webinar introduces participants to those factors and how they come together to ensure a reliably operating pump.

Determining Impeller Trim Diameters for Pump Re-Applications

  • June 2020
  • Number of views: 274
  • Article rating: No rating
FREE for Members of EASA
Convention presentation

Whether it is a simple re-application of a pump from 50 Hz to 60 Hz (or vice versa), the repurposing of an existing pump, or the application of a new pump to an existing application, determining the proper trim for an impeller can be challenging.

Why Pumps Fail

  • June 2020
  • Number of views: 258
  • Article rating: No rating
FREE for Members of EASA
Convention presentation

Centrifugal pump failures are most commonly attributed to seal failure, impeller damage and bearing failures. A good understanding of failure modes for seals, impellers and bearings is essential to providing customers with reliable pump repairs.

Making Shaft Lift Adjustments in Vertical Turbine Pumps

Best practices for safe operation and easy accessibility.

  • June 2020
  • Number of views: 431
  • Article rating: No rating
Trade press article — Pumps & Systems

Vertical turbine pumps (VTP) commonly have rotors with multiple mixed-flow impellers (sometimes 12 or more) that are supported by a vertical pump motor. Such designs offer a lift adjustment for raising or lowering the pump rotor to properly position the impellers within the bowl. Depending on the type of pump, this may be critical for maximizing pump efficiency and could have a significant impact on motor load (current) and reliability.

How Up-Thrust Occurs in Vertical Turbine Pumps and Provisions to Control It

Up-thrust can occur during shutdown or when the pump is operating at flow rates greater than the allowable operating range.

  • June 2020
  • Number of views: 358
  • Article rating: No rating
Trade press article — Empowering Pumps & Equipment

Vertical turbine pumps depend on the vertical motor's thrust bearings to support the combined weight of the pump rotor and the motor rotor and to counteract the dynamic down-thrust that the pump impellers generate in lifting the liquid.

Important Considerations for Accommodating Pump Repair in Your Service Center

  • June 2020
  • Number of views: 386
  • Article rating: No rating
Article

It happens to just about every EASA service center. A machine shows up for repair; it has leads, and there’s a motor, but the machine is a pump. Most often, it’s a close-coupled pump or a submersible pump. If your response is, “We don’t work on those here,” because you’re thinking, “We don’t know anything about repairing pumps,” you may be turning your back on some very profitable work.

Consideraciones Importantes Para Acondicionar la Reparación de Bombas en su Centro de Servicio

  • June 2020
  • Number of views: 281
  • Article rating: No rating
Article

Esto sucede en casi todos los centros de servicio de EASA, aparece una máquina para reparación, con cables y un motor, pero es una bomba. A menudo es una bomba sumergible o de acoplamiento cerrado. Si su respuesta es: “Aquí no reparamos estos equipos” y está pensando: “Nosotros no sabemos nada sobre reparación de bombas” puede que le esté dando la espalda a un trabajo muy rentable.

Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

This booklet covers topics such as:

  • Installation, startup and baseline information
  • Operational monitoring and maintenance
  • Motor and baseline installation data
  • How to read a motor nameplate
  • Motor storage recommendations

LEARN MORE AND DOWNLOAD MÁS INFORMACIÓN Y DESCARGAR

READ MORE ABOUT THE FEATURES AND BENEFITS

EASA Technical Manual

EASA Technical Manual cover

The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.

VIEW & DOWNLOAD

ANSI/EASA AR100-2020

ANSI/EASA AR100-2015 cover

Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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EASA AR200

EASA AR200: Guide for the Repair of Power and Distribution Transformers cover

Guide for the Repair of Power and Distribution Transformers
This document establishes guidelines for each step of the repair of power transformers, describing record keeping, tests, analysis, and general guidelines for the repair of power transformers.

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