Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Direct seawater electrolysis hydrogen production technology is rapidly advancing from laboratory mechanism research to the engineering demonstration stage, becoming an important development direction for offshore green hydrogen. Academician Xie Heping's team published research findings in Nature Reviews Clean Technology in 202, pointing out that direct seawater electrolysis technology continues to iterate, with industrialization goals steadily advancing toward a current density of 400 mA/cm², 10,000 hours of stable operation, and large-scale engineering validation.

There are still numerous engineering bottlenecks in the large-scale implementation of seawater hydrogen production, including severe corrosion caused by chloride ions in seawater, scaling from calcium and magnesium ion precipitation, chlorine evolution side reactions, and marine biofouling, all of which directly affect the operational lifespan and safety stability of the entire system. In the complete offshore green hydrogen system, pumps are indispensable core fluid-handling equipment, undertaking multiple tasks such as seawater intake, pretreatment filtration and circulation, electrolyte delivery, media cooling, and alkali and product circulation. The high chloride ion operating conditions impose extremely stringent requirements on pump material selection, sealing structures, and long-cycle reliability.

Leveraging its accumulated expertise in API series chemical process pumps, Jiangsu LGP Machinery Manufacturing Co., Ltd. (.jslgpump.com) has developed specialized fluid transfer equipment for direct seawater hydrogen production and offshore green hydrogen, offering chloride-ion-resistant centrifugal pumps, API 610 process pumps, API 685 magnetic drive pumps, corrosion-resistant vertical pumps, and process circulation pumps. The equipment can be manufactured from duplex stainless steel, super duplex stainless steel, and high-alloy specialty materials, paired with proven leak-free sealing structures, specifically engineered to handle high-chloride corrosive media, mitigate equipment wear caused by scaling, ensure continuous, safe, and stable operation of offshore hydrogen production units, and facilitate the engineering-scale deployment of the offshore green hydrogen industry.Seawater hydrogen production pump, seawater electrolysis circulation pump, chloride-ion-resistant pump, offshore green hydrogen pump, API 685 magnetic drive pump, Direct Seawater Electrolysis Pump, Offshore Hydrogen Pump, Seawater Electrolysis Pump, Corrosion Resistant Pump, Hydrogen Pump.

[] Xie H P, et al. Nature Reviews Clean Technology, 2026.