• Rotodynamic Pumps - Guideline for Effects of LiquidViscosity on Performance (ANSI/HI 9.6.7-2015- secure PDF)

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Item #: C131e
Member Price: $97.50
Non-member Price: $130.00

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Description  more details

Scope of Standard: ANSI/HI 9.6.7 outlines the method for predicting performance of rotodynamic pumps in Newtonian liquids of viscosity greater than water. The standard applies to single and multi-stage rotodynamic pumps having radial impellers ns = 60, (Ns = 3000), handling liquids exhibiting Newtonian behavior, and a kinematic viscosity greater than 1 and less than 4000 centistokes.

What's New: The 2015 version of ANSI/HI 9.6.7 differs from the 2010 version in a few areas. New data has become available as outlined in Section, including new references in the bibliography. Expanded guidance on the effect of speed versus torque characteristics is found in Section 

What You Will Learn/Overall Benefits:

  • Understand the effects of viscose 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 used in a specific liquid


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

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ISBN: 978-1-935762-43-0
Pages: 40
Approval Date: 2015
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.


Hot Link to TOC: http://www.pumps.org/estore/stdi/9.6.7b.pdf

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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