Company Profile

      Shanghai Zhonghan Dooch Pump MFG Co., Ltd is a high-tech enterprise focusing on the R&D and manufacturing energy-saving pumps and variable frequency water supply system. It is a world-famous manufacturer of variable frequency water supply system, specializing in R&D of variable frequency controller especially for water pump, variable frequency water pump. Water supply system and upgrading of products. We have successively researched and developed the world leading integrated control variable frequency water supply system, N747D system, NQ system and other series of whole-set water supply system , which have been widely used in the pressurization water supply areas around the world.

       Dooch is one of the earliest enterprises who apply the digital integrated full frequency control technology into the variable water supply system of which the NQ series constant pressure variable frequency water supply system is the representative of the advanced technology. The first PID water pump controller was born in Dooch in March, 2002. In 2004, we successfully developed the first water pump variable frequency controller in the world——Q series digital integrated variable frequency controller, which marks the new milestone of constant pressure variable frequency water supply and also achieved the international patent certificates.

        Shanghai Zhonghan Dooch Pump MFG Co., Ltd is located in National Industrial Park, Liantang Town, Qingpu District, Shanghai. Shanghai Dooch has the leading manufacturing equipment and hydraulic test platform, mainly for the R&D of the pump system and variable frequency water supply system as well as the upgrading of the products. Shanghai Dooch has become one of the excellent enterprises in the areas of China Secondary Water Supply, Construction Pressurization Water Supply and City and Town Water Supply. In 2008, we have achieved the certificate of Shanghai Energy-Saving Products and has won water supply system energy-saving product approved enterprise title in the government levels. In 2012, Shanghai Dooch DRL series variable frequency water supply system has been valued as “Recommended Energy-Saving Products in Green Construction”. In September, 2014, as a chief editing enterprise, we have edited the first full frequency control water supply system professional technology specification in our country——《Technical Specification for Application of Digital Integrated Full Frequency Control Constant Pressure Water Supply system》. In June, 2015, the building water supply and drainage research branch of The Architectural  Society of China set “R&D Center of National Secondary Water Supply Full Frequency Control Technology” in Shanghai zhonghan Dooch, with the “Center Office ”in Shanghai factory. Thus we have become the manufacturing enterprise combining production,study and research in secondary water supply areas under the constitute. Meanwhile, Dooch is also a high-level member in China zone of  Water Plumbing Council. In the big background of economical globalization, with the achievements in the development of pump system and the core R&D technology in the water pump integrated variable frequency control areas, we Dooch has become the leader of the global secondary water supply areas especially the integrated full frequency control water supply areas. Our integrated full frequency control water supply system have been successfully applied into the areas of buildings and city & town secondary water supply in US, UK, Japan, Denmark and other 26 developed countries. In China, we have provided our Dooch’s great secondary water supply solutions and systems for more than 360 water companies.

       We Dooch take the business concept of “Honesty, High-Quality, Innovation and Progress ” as the guide; take “safe and reliable, high efficiency and energy-saving, convenient and humanity”as the core, take the “Customers-First”as the tenet and take the customers’ satisfaction as the final target and serve the Chinese market heart and soul.