Jiangsu Haifa Machinery Manufacturing Co., Ltd.

The Alpha Magnetic Spectrometer (AMS) aboard the International Space Station is a vital scientific instrument used to detect cosmic rays, antimatter, and clues about dark matter. Since its installation on the ISS in 2011, the device has been operating in orbit for an extended period. Its internal detectors require a stable temperature environment, making the cooling pump system a critical component for the spectrometer's continuous operation. According to NASA data, between 2019 and 2020, astronauts Luca Parmitano and Andrew successfully replaced the failed cooling pump system of the AM through four spacewalks, allowing the device—originally not designed for in-orbit maintenance—to continue functioning.

Space-grade cooling pumps differ from ordinary industrial pumps, as they must operate in a unique environment characterized by microgravity, vacuum, intense radiation, extreme temperature variations, and the impossibility of on-site repairs. These pumps need to stably deliver cooling media within confined spaces, continuously dissipating heat generated by electronic detectors, sensors, and control systems to prevent overheating that could compromise measurement accuracy or cause malfunctions. The AMS upgrade employs a mechanically driven carbon dioxide two-phase cooling system. Research data indicates that the system's modification, cooling stability and charging precision must be ensured to maintain normal detector operation.

From a pump technology perspective, Jiangsu Haifa Machinery Manufacturing Co., Ltd. has designed its products considering that the core requirements for space cooling pumps are not high flow rates or high head, but rather high reliability, low leakage, low vibration, long lifespan, and precise thermal control. The pump body materials must withstand low temperatures and temperature fluctuations, the sealing structure must prevent media leakage, and the motor and bearing systems must suitable for long-term continuous operation. Additionally, pump vibration and noise must be strictly controlled to avoid affecting the detection accuracy of precision scientific instruments.

The successful replacement of the cooling pump for the ISS's magnetic spectrometer demonstrates that pump technology has extended from traditional ground-based industrial equipment to the core support systems of aerospace scientific platforms. For China's high-end pump manufacturing enterprises, space cooling pumps represent the future direction of fluid equipment: miniaturization, lightweight design, intelligent monitoring, high-reliability sealing, and adaptability to extreme environments. in spacecraft thermal control systems or high-end fields such as semiconductors, photovoltaics, energy storage, and nuclear power, reliable pumps will become essential foundational equipment for ensuring stable system operation.

Jiangsu Haifa Machinery Manufacturing Co., Ltd. was restructured from the Jingjiang Stainless Steel Pump and Valve Factory of the Steel Research Institute under the Ministry of Metallurgical Industry, part of Jiangsu Ligong Group Co., Ltd., established in 1958. company primarily produces API 610 chemical process pumps—OH1, OH2, OH3, OH4 pumps; BB1, BB2, BB3, BB4,5 multistage pumps; VS1, VS4, VS5, VS6 barrel-type pumps; HES-type chemical process pumps; chemical pumps; petrochemical pumps; sixth-generation ultra-low carbon stainless steel high-quality leak-proof molten urea pumps; hydrolyzer feed pumps; high-temperature asphalt pumps; pitot tube pumps; rotary jet pumps; low-flow high-head pumps; multistage vortex pumps; high-temperature molten salt pumps; high-temperature nitric acid pumps; vertical sump pumps; magnetic drive pumps; low-temperature liquid hydrogen and methanol pumps; high-pressure liquid hydrogen pumps; high-temperature nitric acid magnetic drive pumps; magnetic drive pumps for conveying solid-containing media; industrial pumps; canned motor pumps; slurry pumps; titanium tetrachloride pumps; strong self-priming pumps; fluoroplastic-lined pumps; clamp-lined fluoroplastic pumps; leak-proof pumps; desulfurization and denitrification pumps; alkali pumps; pumps; geothermal pumps; oil pumps; axial flow pumps; printing and dyeing pumps; dyeing and finishing pumps; Ti alloy pumps; C-276 material; Hastelloy; 316L material; 347 material; forced circulation pumps; fourth-generation nuclear pumps; nuclear island pumps; special pumps for filter presses; refrigerant pumps; long-shaft vertical sump pumps; CQC first-class energy efficiency chemical pumps; high-pressure descaling industrial pumps; China chemical pumps. www.jslgpump.com Tel: 13905263417 E-mail: jslgpump@gmail.com E-mail: jsareva@163.com