The JHB1400-22 high-flow, high-temperature concentrated sulfuric acid sub-pump is a product developed by Kunming Jia and Pump Co., Ltd. to meet the growing demand for large-scale sulfuric acid production in China. Drawing on advanced materials and structural designs from both domestic and international concentrated sulfuric acid pumps, the company leveraged its extensive R&D and manufacturing experience in this field to create a highly efficient solution. The pump features a flow rate of 1400 m³/h and a head of 22 meters. Its key technical characteristics include a large flow capacity, precise hydraulic design using Tsinghua University’s professional software, and heat-treated components such as the pump body and impeller, which provide excellent mechanical properties. It also replaces traditional PTFE shaft sealing methods with more durable alternatives.
This pump was installed at Guixi Smelter of JCC in September 2004, replacing an imported model in a 600,000 t/a flue gas sulfuric acid plant. It operated under harsh conditions, handling 98% H₂SO₄ at temperatures ranging from 80 to 90°C. Remarkably, it ran continuously for over six months without maintenance or corrosion-related downtime. Recently, a panel of experts from Yunnan Phosphorus Chemical Industry Association, including professionals from Yunnan, Jiangxi, Guizhou, Anhui, Hubei, and Jiangsu provinces, evaluated the JHB1400-22 pump used in the siphon acid circulation system at Guixi Sulfuric Acid Plant, part of Jiangxi Copper Group. After a comprehensive review of its performance, the experts unanimously agreed that the JHB1400-22 has reached international advanced standards. It marked a significant milestone by filling the gap in the domestic market for high-flow, high-temperature concentrated sulfuric acid submerged pumps with a capacity of 1400 m³/h.
The successful development of this pump not only demonstrated the technological capabilities of Chinese manufacturers but also provided valuable experience for future research into large-flow, high-temperature concentrated sulfuric acid pumps. It has played a crucial role in supporting the localization and development of large-scale chemical and smelting facilities across China.
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