HI Publishes New Rotodynamic Pump Standards

05 September 2019

The Hydraulic Institute (HI) has published new American National Standards combining 1-series and 2-series standards into a single 14-series standards. Historically, HI standards have been divided into “1-series” standards for centrifugal pumps and “2-series” standards for vertical pumps.

In the 2000’s, HI’s technical leadership reviewed its standards and nomenclature and determined the content in the 1-series and 2-series documents had repetitive information and that the nomenclature could be more accurately described. This resulted in an effort to combine each of the 1-series and 2-series standards into a single 14-series standard.  The series of standards are as follows:

- ANSI/HI 14.1 -14.2 Rotodynamic Pumps For Nomenclature and Definitions
- ANSI/HI 14.3 Rotodynamic Pumps For Design and Application
- ANSI/HI 14.4 Rotodynamic Pumps For Installation, Operation and Maintenance
- ANSI/HI 14.6 Rotodynamic Pumps For Hydraulic Performance Acceptance Tests

As noted in the names of the standards, the old centrifugal and vertical pumps are grouped under the name rotodynamic, which is an improvement in the accuracy of the nomenclature describing these types of pumps.

Image credit: Hydraulic Institute