scope:

This standard covers efficiency testing of rotodynamic pumps that are included in DOE regulations for energy conservation.¹

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.

A pump consists of either a bare pump along, a bare pump with driver and mechanical equipment, or a bare pump with driver, mechanical equipment, and controls.

This standard applies to a pump without fittings unless these fittings are an integral part of the pump, in which case, the losses for these components must be included with the performance of the pump.

This standard is not intended for production pump testing. Refer to ANSI/HI 14.6 Rotodynamic Pumps for Hydraulic Performance Acceptance Tests and ANSI/HI 11.6 Rotodynamic Submersible Pumps for Hydraulic Performance, Hydrostatic Pressure, Mechanical, and Electrical Acceptance Tests for production pump testing.

¹ This document contains the test protocol for determining measured pump performance characteristics. The DOE test procedure for pumps (10 CFR 431.464) contains additional analysis and calculations necessary to determine the constant load or variable load pump energy index (PEI_CL or PEI_VL).