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Shanghai Zhonghan Duke Pump Manufacturing Co., Ltd. is an enterprise that develops and produces energy-saving water pump and variable frequency water supply system. It is a manufacturer of variable frequency water supply system, specializing in the research and development of special variable frequency controller for water pump, variable frequency water pump and water supply system, and product upgrading. It has developed a series of complete water supply system equipment, such as n747d system and NQ system, which are integrated control variable frequency water supply system, and widely used in the field of pressurized water supply around the world. Duke is one of the early enterprises that applied digital integrated full frequency control technology to frequency conversion water supply equipment. In March 2002, PID pump special controller was born in dooco. In 2004, the company successfully developed a special frequency conversion controller for water pump - Q series digital integrated frequency conversion controller, which realized the new mileage of constant pressure frequency conversion water supply and obtained the international patent certificate. Shanghai Zhonghan Duke Pump Manufacturing Co., Ltd. is located in Liantang Industrial Park, Qingpu District, Shanghai. Shanghai Duke has product manufacturing process equipment and hydraulic experiment platform, mainly responsible for the R & D, production and product upgrading of pump system and variable frequency water supply system.

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