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Item #: A142
Member Price: $180.00
Price: $240.00
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Description  more details

Scope of Standard: 

Rotodynamic Pumps – Guideline for Dynamics of Pumping Machinery (ANSI/HI 9.6.8 -2014) describes and recommends the means to appropriately evaluate pumping machinery construction attributes and relevant site characteristics in order to determine the effects of dynamic performance on equipment life and reliability. It describes and recommends various levels of detailed evaluation and validation that are commensurate with the degree of equipment uncertainty and application risk.

Dynamic perturbations may result in the excitation of structural resonance in any installation. With the trend towards increasing use of variable speed drives within pumping systems, avoiding this excitation of structural resonance has become increasingly more difficult. It is therefore important to ensure that the potential problems caused by high vibration are properly addressed and mitigated during the design phase.

Further development of the analytical tools and techniques used to identify these issues has also dramatically increased. However, it is not always clear which tools are available and how to use them in various applications across various markets and diverse products. Equally the range of preventive measures remains quite diverse, ranging from simple to complex. The associated expense can be small to relatively large when compared to the cost of the equipment. In all cases it is better to avoid a problem than to fix it after the fact.

This document provides guidance for the pump industry pertaining to these topics.

What You Will Learn/Overall Benefits:

  • Learn what analysis is appropriate to specify or utilize for proper evaluation of new pumping equipment, prior to design or field installation
  • Understand what analysis needed to make an accurate assessment of existing pumping equipment installed in the field
  • Ensure that any upgrades, rerates, or field modifications are done in a manner that will validate contemplated equipment design and field modifications
  • Recognize the economics associated with analysis to different Level requirements
  • Prepare for dynamic characteristics of pumping equipment that might be significantly influenced by the installation, including piping configuration, mounting arrangement, or drive system
  • Learn how to utilize the Decision Matrix that includes the Uncertainty Values, Risk Number, and RUN Value to arrive at the suggested Level of analysis
     

Applicable Markets: Municipal Water and wastewater, Building trades and HVAC, Electric power, Petroleum (oil and gas including API, Pipeline, and Water Injection), Chemical, Pulp and paper, Slurry, General industry, Drainage and Dewatering, Irrigation, Fire, Flood control, and Water transport

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ISBN: 978-1-935762-27-0
Pages: 110
Approval Date: 2014
Table of Contents: View in PDF format
Also available in secure PDF: View now

Content:  This guideline describes and recommends the means to appropriately evaluate pumping machinery construction attributes and relevant site characteristics in order to determine the effects of dynamic performance on equipment life and reliability. It describes and recommends various levels of detailed evaluation and validation that are commensurate with the degree of equipment uncertainty and application risk.

Hot Link to TOC: View in PDF format

Who Should Buy This Standard: 

  • Pump specifiers and authors of pump specifications
  • Pump engineers responsible for analysis of new pump designs
  • Planners who intend to upgrade existing equipment
  • Pump assessment specialists
  • Performance and field service specialists troubleshooting pump issues

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