Hunan Valin LY Steel Group Co., Ltd. (“LY Steel”) is an important production base for fine steel products in Central and Southern China, a backbone enterprise of Valin Group – one of China’s top ten steel companies, and a provincially administered super large state-owned enterprise in Hunan. LY Steel was established and put into production in 1958. After 57 years of development, it currently has an annual steel production capacity of 8 million tons, and possesses a production line covering the entire process from coking, sintering, steelmaking to steel rolling. It mainly produces thin hot-rolled and cold-rolled coils featuring high strength, high technology content and high added value. The “Shuangling” brand has been shortlisted as “China’s Top Ten Publicly Recognized Brands”, and recognized as a “China Famous Trademark” by the State Administration for Industry and Commerce. This project covered energy plant,steel plant , circulating water system in steel rolling milland of LY Steel, involving a total of 100 high-efficiency water pumps. After transformation, water pumps operated well and the power-saving effect was obvious.