GB/Z 43364-2023Rotodynamic pumps - Hydraulic performance acceptance test using a model pump (English PDF)

1 Scope

This document specifies the use of a small size pump (centrifugal pump, mixed flow pump and axial flow pump, hereafter referred to as the model pump) for hydraulic performance acceptance testing

Testing methods (including cavitation test)

This document is applicable to pump acceptance tests using geometrically similar model pumps to ensure that large-size pumps (below

Called real type pump) performance: However, this document does not prevent temporary overall inspection or other testing of full-type pumps: At the same time, I also think that it is best to carry out real type

Pump test unless subject to the following conditions:

---Pump capacity (pump flow and/or pump input power) exceeds the limits of the test facility, although it is difficult to establish based on flow or power

Criteria for substituting model pump tests for full-scale pump tests;

---A certain part of the pump is a concrete structure, and it is impractical to replicate it as a whole;

---Model testing specified by the buyer;

---For other reasons, it is difficult to conduct real-type pump tests:

This document is applicable to performance tests under stable operating conditions corresponding to real-type pumps:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 33925:1 General terms, definitions, quantities, characters and units for liquid pumps and their devices Part 1: Liquid pumps (GB/T 33925:1-2017,ISO 17769-1:2012,IDT)

GB/T 33925:2 General terms, definitions, quantities, characters and units for liquid pumps and their devices Part 2: Pump systems (GB/T 33925:2-2018,ISO 17769-2:2012,IDT)

3 Terms and definitions

The terms and definitions defined in GB/T 33925:1, GB/T 33925:2 and the following apply to this document:

3:1 General terms

3:1:1 performance test performancetest

A test to measure pump performance without the influence of cavitation:

3:1:2 cavitation test cavitation test

A test of a model pump under the corresponding working conditions of a real pump to determine whether the pump head changes due to cavitation:

Note: The cavitation test corresponds to the Class III NPSH test specified in GB/T 3216-2016:

GB/T 13929 | JB/T 13977 | GB/T 7782 | GB/T 26115 | GB/T 14794 | […]