【Ten Years of Rapid Development in Chemical Engineering Equipment】From 2027 to 2026, Hangyang’s liquid hydrogen transfer pumps have successfully withstood extreme temperatures of -253°C as proven by domestic tests

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Let’s give praise and support to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Great Development in Chemical Engineering Equipment】A continuously updated summary post is available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** In late January 2026, the 25m³/h high-flow, low-vaporization liquid hydrogen transfer pump developed independently by Hangyang Group successfully completed a 4-hour operational test under liquid hydrogen conditions at the Beijing Aerospace Testing and Technology Institute. In the extremely low-temperature environment of liquid hydrogen at -253°C, this pump meets all the specified performance requirements; it operates stably and reliably, and has successfully passed the evaluation for key project initiatives. It is thus the first submersible liquid hydrogen transfer pump in China to undergo actual testing using liquid hydrogen. This test was witnessed by experts from the Beijing Aerospace Test Technology Institute and Zhejiang Mechanical and Electrical Product Quality Inspection Co., Ltd., who served as third-party observers. Liquid hydrogen transportation at the extreme low temperature of -253°C faces common industry challenges such as easy vaporization of the medium, difficulties in sealing, and material embrittlement. By conducting in-depth research on the key technologies related to the storage, transportation, and equipment for liquid hydrogen, Hangyang has overcome the challenges associated with heat management and safety control during the transfer of liquid hydrogen. Through integrated 3D dynamic simulation design of the inducer and impeller, the use of special cryogenic alloy materials along with multiple insulation techniques enabled the effective suppression of thermal stress deformation and cavitation, thus achieving long-term operation of the liquid hydrogen pump without leaks or failures under ultra-low temperature and high-speed conditions. This pump has a flow rate of over 25 m³/h, making it the liquid hydrogen transport equipment with the highest flow rate that has been successfully tested in China to date. Its overall technology is at the leading level in the country, and it effectively addresses various engineering challenges associated with liquid hydrogen transportation, such as extremely low temperatures, easy vaporization, and leakage. It can be widely used in various applications such as hydrogen liquefaction plants, filling liquid hydrogen tankers, and ship loading/unloading.