ANSI/HI Pump Standards are available in both hardcopy and secure PDF formats. Secure PDFs are immediately downloadable and incur no shipping or handling charges. Standards in this format are a single user license and require a one-time authorization using an Adobe-approved plug-in from FileOpen Systems.
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Rotodynamic Pumps for Pump Intake Design (ANSI/HI 9.8-2018) - secure PDF
Scope: Ideally, the flow of liquid into any pump should be uniform, steady, and free from swirl and entrained air. Lack of uniformity through inlet connection can result in pumps not operating to optimum design condition and at a lower hydraulic efficiency.
Rotodynamic Centrifugal Slurry Pumps (ANSI/HI 12.1-12.6-2016 - secure PDF)
Scope: ANSI/HI 12.1–12.6 offers a basic educational overview on rotodynamic centrifugal slurry pumps, design and application considerations related to the selection of the right pump for a specific industry including pump installation as well as operation and maintenance procedures.
Rotodynamic Pumps for Hydraulic Performance Acceptance Tests (ANSI/HI 14.6-2016 - secure PDF)
Scope: This standard covers tests for acceptance of rotodynamic pumps (centrifugal, mixed flow, and axial flow pumps), in this document referred to as pumps.
Rotodynamic Pump Efficiency Prediction (HI 20.3-2015 - secure PDF)
Scope: ANSI/HI 20.3 presents a simplified method to predict normally attainable efficiency levels at the best efficiency point for selected types of rotodynamic pumps when the rate of flow, total head per stage, net positive suction head available (NPSHA), and the service conditions are known.
 Hydraulic Institute Program Guide for HI Energy Rating Program (HI 40.5-2016)
Scope: The scope of pumps included in the Program are limited to pumps identified in the energy conservation standard developed by the US Department of Energy (DOE) and listed in Section of this document (hereinafter referred to as the "guiding standards").
Hydraulic Institute Standard for Methods for Rotodynamic Pump Efficiency Testing (HI 40.6-2014 - Secure PDF) For Historical Reference
Scope: This standard is incorporated by reference in the Uniform Test Procedures for “Pumps” and “Dedicate Purpose Pool Pumps” as outlined in the Department of Energy - Energy Conservation Program ( This standard established minimum testing protocols for testing of rotodynamic pumps for determination of pump efficiency in a uniform manner.
Hydraulic Institute Standard for Methods for Rotodynamic Pump Efficiency Testing (HI 40.6-2016 - Secure PDF)
Scope: HI 40.6 is intended to be used for efficiency testing at pump test facilities or laboratories only. Industry experience shows that it is very difficult to perform measurements accurate enough to satisfy the requirements in this standard when testing is performed in the field. Therefore field-testing is not permitted as a method of efficiency testing per this standard.
Hydraulic Institute Program Guide for Pump Test Laboratory Approval (HI 40.7-2015)
Scope: Participants in the pump test lab approval program include any organization, such as a corporation, research institution, laboratory, etc., whether domestic or international, that have the capability to test pumps and extended products to applicable test standards.
ASME Vertical Pump Standards in Secure PDF
These vertical pump standards, developed by the American Society of Mechanical Engineers,are sold through the Hydraulic Institute in secure PDF format.
Electronic Data Exchange for Vertical Pumps
The purpose of HI Electronic Data Exchange is to define a common industry standard for the electronic exchange of technical data commonly used to describe pumping equipment. All software applications or systems that adhere to this standard are able to exchange technical data reliably and efficiently with all other systems that comply with this standard.
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