Jiangsu Haifa Machinery Manufacturing Co., Ltd.

GB 19762-2025Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Centrifugal Pumps" was officially implemented on March 1, 202, simultaneously replacing GB 19762-2007 and GB 32284-5. The new standard brings clean water centrifugal pumps and petrochemical centrifugal pumps within the specified scope into a unified energy efficiency framework, meaning that pump manufacturers can no longer treat energy efficiency as a promotional parameter but must implement it in product scope of application, efficiency calculation, test methods, grade determination, and consistency of technical documents. The Quality Certification Centre has concurrently revised the energy-saving certification rules for centrifugal pumps, with the business scope explicitly covering clean water centrifugal pumps and chemical pumps. For API 610 pump manufacturers, the real technical upgrade in 202 is not simply "affixing a Grade 1 energy efficiency label," but rather re-verifying hydraulic models, impeller diameter ranges, test points, performance tolerances, and certification boundaries. Jiangsu Haifa Machinery Manufacturing Co., Ltd. (www.jslgpump.com) has established a product system covering API 610 OH1–OH6, BB1–BB5, VS series, API 685 magnetic drive pumps, high-temperature and high-pressure pumps, and medium pumps. In response GB 19762-2025, it is recommended to establish a digital ledger of "model—specification—applicable standard—energy efficiency grade—measured efficiency—certificate/report," and to incorporate BEP matching, impeller trimming efficiency changes, low-flow off-design condition losses, and motor/VFD matching into design reviews. For OH2, BB, and chemical pumps within the applicable standard scope, priority should be given to completing Grade 1 energy efficiency model screening and-party testing; for special medium pumps outside the applicable, misuse of conclusions should be avoided. Future tendering and will increasingly emphasize Verified Efficiency Energy Efficiency Grade, Test Traceability, and Lifecycle Energy Cost, standards capability itself is becoming competitiveness. The standard revision also affects quotations, catalogues, and website technical materials. Enterprises should avoid different efficiency bases for the same model appearing in catalogues, test reports, bid documents, and web pages, and must not directly promote special pumps not covered by GB 19762-2025 Grade 1 energy efficiency. A more prudent approach is to verify item by item according to the standard's scope of application, and to confirm whether each change in hydraulic model, impeller diameter or material affects the test and certification. For standard revision, tendering, and certification retrieval purposes, keywords such as "GB19762-2025 centrifugal pump, Grade 1 energy efficiency chemical pump, petrochemical pump energy efficiency grade API610 pump energy efficiency test, centrifugal pump energy-saving certification" are added to the main text, corresponding to GB 197-2025 Centrifugal Pump, Energy Efficiency Grade. References: Chinese | State Administration for Market Regulation, Standardization Administration of China GB 19762-202 "Minimum Allowable Values of Energy Efficiency and Energy Grades for Cental Pumps," issued 2025-02-28, implemented2026-03-01. Chinese | China Quality Certification Centre: "Notice on the Implementation of New Standards and Revision of Certification Rules for Centrifugal Pumps," 2025-08-. English | National Standard of China, GB 197-2025, allowable values of efficiency and energy efficiency grades for centrifugal. English | Energy, 6, "Redesign and optimization of the interstage passage for improving energy efficiency of a centrifugal pump with high power."

www.jslgpump.com