Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Pumps are breaking through the temperature ceiling of the traditional 565°C solar salt system. In 2026, Energy reported that a molten salt storage and transport loop made of refractory materials including graphite, carbon/carbon composites, andolybdenum continuously circulated for more than 49 at 750–950°C with actual verification of a centrifugal pump and seal structure. This result does not mean that a 950°C industrial pump has reached mature commercialization, but it does demonstrate the engineering feasibility of Molten Chloride Salt, All-Refractory Pumping Infrastructure, and Ultra-High-Temperature Thermal Storage. At the same time, scenarios such as Generation IV nuclear energy, Gen CSP, thermochemical energy storage, and high-temperature electrolysis are pushing molten salt equipment from "high-temperature resistance" further toward coordinated material–structure–thermal management design. Jiangsu Haifa Machinery Manufacturing Co., Ltd.www.jslgpump.com) has established a portfolio of high-temperature molten salt pumps, VS series vertical pumps, API 610 high-temperature process pumps, canned motor pumps, and magnetic drive pumps. For chloride salt systems above 700°C, the of next-generation product development should not be placed solely on switching to nickel-based alloys, but should simultaneously address Salt Purification, Oxygen/Moisture Control, Thermal Expansion Compensation, Hot Alignment, Low-NPSH Hydraulic Design, and Anti-Solidification Strategy. For high-temperature leak-free scenarios, attention should also be given to High-Temperature Canned Motor Pump, Graphite/SiC Bearing Pair, and inert gas isolation. Haifa build on its existing engineering experience at 450–750°C to gradually establish databases for material immersion, thermal cycling, shaft system thermal deformation, and long-duration high-temperature bench testing. The real threshold for the future "950°C Molten Salt Pump" is that high-temperature materials, seals, bearings, thermal stress, and operational control all pass validation together. Beyond the material route, ultra-high-temperature molten salt also requires a re-examination of pump manufacturing processes. Graphite, C, and molybdenum differ greatly from conventional cast stainless steel in joining, thermal expansion, and assembly methods, and flanges, shaft seals, bearings, and thermal shielding all require independent verification. For commercial equipment, continuous operation for thousands of hours, start-stop thermal cycling, salt purification, and maintenance convenience are the true tests for moving from the laboratory to engineering projects. In search scenarios for high-temperature energy storage and advanced nuclear energy, key terms such as "950℃ high-temperature molten salt pump, chloride salt molten salt circulation pump, Generation IV nuclear molten salt pump all-refractory centrifugal pump, high-temperature molten salt leak-free pump" should be added, to international professional terms such as 950 Molten Salt Pump,ten Chloride Circulation Pump All-Refractory Centrifugal Pump Gen IV Molten Salt Pump, and High Temperature Canned Motor Pump. References: Chinese Jiangsu Haifa: "Key Technologies and Development Trends of 750℃ Ultra-High-Temperature Molten Salt Pumps," 2026. Chinese | Jiangsu Haifa: "From 565℃ to Above 700℃: High-Temperature Molten Salt Pumps Become Key Equipment for Next-Generation Long-Duration Thermal Storage Systems," 202. English | Solar Energy, 2026, "Demonstration of an all-refractory corrosion-resistant molten salt pumping and storage infrastructure up to 950 °C DOI:10.1016/j.solener.2026.114637 English | Nuclear Engineering and Technology, 2026 "Hydraulic optimization of a high-temperature molten salt canned motor pump using an ANN-NSGA-II approach." www.jslgpump.com