• Rotodynamic Pumps for Assessment of Applied Nozzle Loads (ANSI/HI 9.6.2-2015 - secure PDF)

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Item #: B119e
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Description  more details

Scope of Standard: 

This standard includes recommendations for assessment of applied nozzle loads for the following pump types. When specified by the user, pumps supplied shall conform to these requirements.

  • Horizontal end suction single stage (ANSI/ASME B73.1 and B73.3).
  • Vertical in-line single stage (ANSI/ASME B73.2).
  • Axially split one and two stage (BB1).
  • Vertically suspended pump single casing discharge through column with diffuser and volute (VS1 and VS2).

Many other pump types are not included because of the different designs that are unique to each manufacturer. For pump types outside the scope of this standard, allowable nozzle loads should be established by the pump manufacturer, applied nozzle loads predicted by the purchaser, and differences, if any, negotiated and resolved by the two parties.

For assessment of applied nozzle loads for slurry pumps, see ANSI/HI 12.1-12.6 Rotodynamic (Centrifugal) Slurry Pumps for Nomenclature, Definitions, Applications, and Operation.


What You Will Learn/Overall Benefits:

  • Understand how nozzle loads effect pump operations under certain conditions
  • Facilitate conversation between manufacturer and OEM to determine an agreed upon level of loads

Applicable Markets:  Standard addresses entire pump community in all markets.

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ISBN: 978-1-935762-24-9
Pages: 46
Approval Date: 2015
Table of Contents: View in PDF format
Also Available in Hardcopy: View now

Content: Nomenclature and definitions, criteria for loading allowances, list of material specifications, adjustment factors, maximum allowable individual nozzle loads, and example assessments of applied nozzle loads.


Hot Link to TOC:  None Available

Who Should Buy This Standard:  OEMs, engineering and consulting firms, and purchasing agents who specify pumps for different applications must be aware of effects of nozzle loads on pump performance and life.

Important Notice: 

This standard is available for immediate download in secure PDF format. Standards in this format are a single-user license and are encrypted for security purposes. Each standard is authorized to a single login and password on a single desktop or laptop computer. The end-user license prohibits installation of these files on a network server or their shared use in a network environment.  These files may be transferred from an old computer to a new computer by following the instructions provided upon purchase or available online at estore.pumps.org/about.aspx.

To view HI Standards in this format requires the download of the free Adobe® Reader®. Authorization requires download of an Adobe-approved plug-in from FileOpen Systems, Inc. and Internet access to complete the authorization process. Security permissions of these files allow printing and the addition of comments. Once authorized these files may be accessed with or without connection to the Internet.


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