Volute pump has large flow, high efficiency and small footprint, which is conducive to the realization of centralized management and automation, and reduces engineering investment. For large-scale cross-regional and cross-alpine water diversion projects at home and abroad, such as Yulin Yellow River Diversion, Han River Diversion, Central Yunnan Water Diversion, ROMA Irrigation in India, etc. The large-scale volute pump products with a flow rate of up to 50m³/s and a lift of up to 260m have broken through a series of key technical problems in the manufacturing process of high-lift pumps, and achieved the goal of replacing imported products and localization.