Shanghai Sino-Korea Dooch Pump Manufacture Co., Ltd is a high-tech world-famous enterprise, focusing on the R&D and manufacturing energy-saving pumps and variable frequency water supply system. 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 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 for Q series which marks the new milestone of constant pressure variable frequency water supply system and also achieved the international patent certificates.
Now We have become one of the excellent enterprises in Secondary Water Supply, Construction Pressurization Water Supply and City and Town Water Supply areas in China.

Dooch will always 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 to serve all the customers from heart and soul.