This standard specifies the hydraulic performance acceptance test methods for rotary power pumps (centrifugal pumps, mixed flow pumps, and axial flow pumps, hereinafter referred to as "pumps"). This standard applies to pump acceptance tests conducted at pump testing bases, such as laboratory or pump manufacturer test benches. This standard is applicable to pumps of any size that transport liquids that meet the properties of clean cold water. This standard specifies three acceptance levels: - Class 1B, Class 1E, and Class 1U, with relatively strict tolerances; --- Level 2B and 2U, with relatively broad tolerances-- Level 3B with broader tolerances. This standard applies not only to pumps without any pipeline accessories themselves, but also to pump assemblies that connect all or part of the upstream and/or downstream pipeline accessories. Note: In terms of pump classification, the vortex system is also classified as a rotary power pump. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. ISO 17769-1 Liquid pumps and their devices, general terms, definitions, quantities, characters and units, Part 1: Liquid pumps (General terms. definitions. quantities. letter symbols and units - Part 1: Liquid pumps) ISO 17769-2 Liquid pumps and their devices, general terms, definitions, quantities Characters and units, Part 2: Pump conveying system (Liquidpumps and installation General terms. definitions. quantities. letter symbols and units Part 2; Pum ping system) 3. Terms, definitions, symbols, and footmarks 3.1. Terms and definitions defined in ISO 17769-1 and ISO 17769-2, as well as the following terms, definitions, quantities, and symbols, apply to this document. Note 1: Table I provides the alphabet of symbols used, Table 2 provides a footnote table, see 3.3. Note 2: All formulas are given in SI units. For conversion of other units to SI units, please refer to Appendix 1. 3.1.1 General Terminology Note: In order to meet the technical requirements of users, all test types in 3.1.1 are applicable to guarantee points. 3.1.1.1 Ensure that the guaranteed point is within the tolerance range of the acceptance level agreed by all parties, and the flow/head (Q/H) point that the tested pump should meet
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China