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Item #: D131e
Member Price: $97.50
Non-member Price: $130.00

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Description  more details

Scope: ANSI/HI 9.6.7 outlines the method for predicting performance of rotodynamic pumps in Newtonian liquids of viscosity greater than water. The scope of this guideline is the rotodynamic radial flow pumps of overhung (OH) between bearing (BB) or vertical (VS) type of convential deisgn, within the allowable operating range, pumping Newtonian fluids.

What's New: The 2021 edition of ANSI/HI 9.6.7 includes editorial changes from prior publications related to standard deviation for correction factors. Additional clarification on the uncertainty of viscous power consumption is included.

What You Will Learn/Overall Benefits:

  • Understand the effects of viscous liquids on pump performance related to flow, head pressure and required horsepower
  • Predict the change in pump performance when handling viscous liquids to ensure the correct selection of a pump for use in a specific liquid


Applicable Markets:  Oil and gas, petroleum refinery, chemicals, pharmaceuticals and any industry using liquids heavier than water. 

Click the "More Details" tab above for additional product information.

ISBN: 978-1-935762-95-9
Pages: 41
Approval Date: 2021
Table of Contents: View in PDF format
Also Available in Hardcopy: View now

Content: Viscous correction factors and methods for determining them, procedures to estimate effects of viscosity on pump performance, viscous liquid performance correction limitations, methods for estimating net positive suction head required, pump design effects, sealing issues and more.


Who Should Buy This Standard:  Pump OEMs who must learn how to test pumps to calculate the difference in performance between water and oil or other viscose materials.  Pump users can use standard to evaluate different pumps based on their performance in water and other viscose liquids.

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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