Jiangsu Haifa Machinery Manufacturing Co., Ltd.

In 2026, industrial pump reliability evaluation is shifting "vibration not exceeding limits" to Low Vibration Design, Condition Monitoring, and Vibration Zone A. China's current GB/T 29531-2013 classifies pump vibration states into four levels: A, B C, and D, Level A represents new equipment or optimal operating conditions; however, specific limits must be determined on pump center height, rotational speed, and equipment category, and a single fixed vibration value cannot cover all pump types. The international standards system is also upgrading. ISO has initiated new work on ISO 20816-7, re-improving bearing housing and shaft vibration evaluation for industrial rotodynamic pumps; API 610 13th Edition has been released simultaneously, making Rotor Dynamics, Mechanical Run Test, Bearing Housing Vibration, and Operating Range once again important technical terms in high-end process pump procurement. ISO Jiangsu Haifa Machinery Manufacturing Co., Ltd. www.jslgpump.com, in the design of OH–OH6, BB1–BB5, VS series, high-speed pumps, and high-pressure multistage pumps, moves the Level A vibration target forward to the hydraulic design and rotor design stages, rather than passively adjusting after trial operation. Design focuses include impeller dynamic balancing, shaft train critical speed, Bearing Span, Shaft Deflection, Rotor Dynamic Analysis, blade passing excitation, volute–impeller matching, and base stiffness. Haifa's existing technical materials also point out that deviation from optimal operating conditions, pressure pulsation, rotor imbalance, and structural stiffness are all important sources of centrifugal pump vibration. For high energy density units such as BB5 high-pressure pumps, OH2 process pumps, and6 high-speed pumps, Jiangsu Haifa Machinery Manufacturing Co., Ltd. needs to simultaneously control Residual Unbalance, 1X/2X, Blade Passing Frequency, and Hydraulic Excitation, and establish an equipment health baseline through FAT vibration spectrum. The truly highly reliable pumps of the future are not just those that "meet allowable values," but those that target Zone A Pump, Ultra-Low Vibration API 610 Pump, Digital Vibration Baseline, and Vibration Monitoring, designing low vibration directly into the product's full lifecycle. Latest Chinese and English references Chinese references: Standardization Administration of China: GB/T 29531-2013 " for Measuring and Evaluating Pump Vibration," currently still the prevailing national standard. National standard plan 20254046-T-604: "Methods for Measuring and Evaluating Pump Vibration" revision project, issued in 2025, under review. GB/T 41850.1-2024 "Mechanical vibration — Measurement and evaluation of machine vibration Part 1: General guidelines," identically adopting ISO 20816-1:2016, implemented in July 2025. Jiangsu Haifa Machinery Manufacturing Co., Ltd.: "auses and Preventive Measures of Centrifugal Pump Vibration — involving off-design operation, hydraulic matching, rotor balancing shaft train and base stiffness. Jiangsu Haifa Machinery Manufacturing Co., Ltd. English References: ISO, ISO/A 20816-7 — Mechanical vibration — Measurement and evaluation of machine vibration Part 7: Rot pumps for industrial applications, 2026, under development, will replace ISO 10816-7:200. ISO American Petroleum Institute, API Standard 610, 13th Edition — Centrifugal Pumps for, Petrochemical and Natural Gas Industries, released June 29, 2026. GB/T9239.-2026 / ISO 21940-1:201: Basic standard for rotor balancing, new national standard implemented in February 7.