GB/T 3216-2016 in English

《GB/T 3216-2016回转动力泵 水力性能验收试验 1级、2级和3级》由TC211（全国泵标准化技术委员会）归口，主管部门为中国机械工业联合会。

Rotodynamic Pumps — Hydraulic Performance Acceptance Tests — Grades 1, 2 and 3

1 Scope

This standard specifies hydraulic performance tests for customers’ acceptance of rotodynamic pumps (centrifugal, mixed flow and axial pumps, hereinafter “pumps”).

This standard is intended to be used for pump acceptance testing at pump test facilities, such as manufacturers’ pump test facilities or laboratories.

It can be applied to pumps of any size and to any pumped liquids which behave as clean, cold water. This standard specifies three levels of acceptance:

— grades 1B, 1E and 1U with tighter tolerance;

— grades 2B and 2U with broader tolerance;

— grade 3B with even broader tolerance.

This standard applies either to a pump itself without any fittings or to a combination of a pump associated with all or part of its upstream and/or downstream fittings.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 17769-1 Liquid Pumps and Installation — General Terms, Definitions, Quantities, Letter Symbols and Units — Part 1: Liquid Pumps
ISO 17769-2 Liquid Pumps and Installation — General Terms, Definitions, Quantities, Letter Symbols and Units — Part 2: Pumping System

3 Terms, Definitions, Symbols and Subscripts

3.1 Terms and definitions

For the purposes of this document, the terms, definitions, quantities and symbols given in ISO 17769-1 and 17769-2 and the following apply.

Note 1: Table 1 gives an alphabetical list of the symbols used and Table 2 gives a list of subscripts; see 3.3.
Note 2: All formulae are given in coherent SI units. For conversion of other units to SI units, see Annex I.

3.1.1 General terms

Note: All of the types of test in 3.1.1 apply to guarantee point to fulfil the customer’s specification(s).

3.1.1.1
guarantee point
flow/head (Q/H) point, which a tested pump shall meet, within the tolerances of the agreed acceptance class

3.1.1.2
factory performance test
pump test performed to verify the initial performance of new pumps as well as checking for repeatability of production units, accuracy of impeller trim calculations, performance with special materials, etc.
Note: A typical performance test consists of the measurement of flow, head and power input to the pump or pump test motor. Additional measurements, such as NPSH, may be included as agreed upon. A factory test is understood to mean testing at a dedicated test facility, often at a pump manufacturer’s plant or at an independent pump test facility.

3.1.1.3
non-witnessed pump test

Foreword II
Introduction V
1 Scope
2 Normative References
3 Terms, Definitions, Symbols and Subscripts
3.1 Terms and definitions
3.2 Terms relating to quantities
3.3 Symbols and subscripts
4 Pump Measurements and Acceptance Criteria
4.1 General
4.2 Guarantees
4.3 Measurement uncertainty
4.4 Performance test acceptance grades and tolerances
4.5 Default test acceptance grades for pump application
5 Test Procedures
5.1 General
5.2 Date of testing
5.3 Test programme
5.4 Testing equipment
5.5 Records and report
5.6 Test arrangements
5.7 Test conditions
5.8 NPSH tests
6 Analysis
6.1 Translation of the test results to the guarantee conditions
6.2 Obtaining specified characteristics
Annex A (Normative) Test Arrangements
Annex B (Informative) NPSH Test Arrangements
Annex C (Informative) Calibration Intervals
Annex D (Informative) Measurement Equipment
Annex E (Informative) Tests Performed on the Entire Equipment Set — String Test
Annex F (Informative) Reporting of Test Results
Annex G (Informative) Special Test Methods
Annex H (Informative) Witnessed Pump Test
Annex I (Informative) Conversion to SI Units
Annex J (Informative) Measurement Uncertainty for NPSH Test
Bibliography