ANSI HI 14.6-2022 PDF

Full title and description

ANSI/HI 14.6-2022 — Rotodynamic Pumps for Hydraulic Performance Acceptance Tests. Provides uniform acceptance criteria, test procedures, data recording and reporting requirements for hydraulic performance, NPSH and hydrostatic pressure testing of rotodynamic (centrifugal, mixed-flow and axial) pumps, and defines acceptance grades and tolerances to produce consistent, repeatable results.

Abstract

This standard specifies test arrangements, instrumentation, measurement methods and acceptance tolerances for factory hydraulic performance acceptance tests of rotodynamic pumps. It covers measurements of flow, differential head, suction conditions (NPSH), input power, speed, torque and temperatures, and sets out reporting formats and acceptance grades appropriate for purchaser–manufacturer agreements.

General information

• Status: Current / Active.
• Publication date: 2022 (ANSI/HI 14.6:2022, published February 2022).
• Publisher: Hydraulic Institute (ANSI accredited).
• ICS / categories: 23.080 — Pumps (Fluid systems and components for general use).
• Edition / version: 2022 edition (supersedes ANSI/HI 14.6‑2016).
• Number of pages: Approximately 105 pages (PDF/print formats).

Scope

Applies to hydraulic performance acceptance testing of rotodynamic pumps (centrifugal, mixed-flow and axial) performed in test facilities such as manufacturers’ test labs and accredited laboratories. The standard is intended for tests on pumps handling clear water or liquids with similar properties, and details procedures and acceptance grades for performance, NPSH, hydrostatic pressure and related measurements and reporting.

Key topics and requirements

• Defined acceptance grades and tolerance bands (Grade 1 variants, Grade 2 variants, Grade 3) for performance results.
• Standardized test arrangements and instrumentation requirements to ensure repeatable results.
• Procedures and criteria for NPSH determination and reporting.
• Hydrostatic pressure test methods and acceptance criteria for casings and wetted components.
• Measurement and reporting of flow, head, input power, speed, torque and temperatures.
• Data recording, test-report formats and recommended uncertainty treatment for results.
• Guidance on permissible fluctuations, test conditions, and factors affecting repeatability (installation, string effects, etc.).

Typical use and users

Used by pump manufacturers, independent test laboratories, specifying and design engineers, procurement specialists, end users and owners for acceptance testing, contract verification, quality control and performance assurance of rotodynamic pumps prior to shipment or commissioning.

Related standards

Commonly referenced documents include ISO 9906 (rotodynamic pumps — hydraulic performance acceptance tests), other Hydraulic Institute documents (related 14‑series guidance such as installation and O&M), HI 40.6 methods for efficiency testing (derived from HI 14.6 practices), and industry standards (for example referenced AWWA and IEEE test/rating practices where applicable).

Keywords

rotodynamic pumps; acceptance tests; hydraulic performance; NPSH; hydrostatic test; test procedures; acceptance grades; measurement uncertainty; Hydraulic Institute; ANSI; pump test facilities.

FAQ

Q: What is this standard?

A: ANSI/HI 14.6-2022 is the Hydraulic Institute’s American National Standard that specifies hydraulic performance acceptance test methods, reporting and acceptance criteria for rotodynamic pumps.

Q: What does it cover?

A: It covers factory hydraulic performance testing (flow, head, power, NPSH, hydrostatic tests), test arrangements, instrumentation, acceptance grades/tolerances and reporting formats for centrifugal, mixed-flow and axial pumps tested in controlled facilities.

Q: Who typically uses it?

A: Pump manufacturers, test laboratories, specifying engineers, purchasers and plant operators use it for contract acceptance testing, verification of performance claims and quality assurance.

Q: Is it current or superseded?

A: Current — the 2022 edition supersedes the previous 2016 edition (ANSI/HI 14.6-2016).

Q: Is it part of a series?

A: Yes — it is part of the Hydraulic Institute’s 14‑series of rotodynamic pump standards (14.1, 14.3, 14.4, 14.6, etc.) that address nomenclature, design, installation/operation and testing of rotodynamic pumps.

Q: What are the key keywords?

A: Rotodynamic pumps, acceptance tests, performance testing, NPSH, hydrostatic testing, acceptance grades, Hydraulic Institute, ANSI, pump test facility.