Recently, Hengshui City, Yang days Pump Co., Ltd. successfully developed a new field of pump products - water-immersed multi-stage pump won the national utility model patents. This is the result of another technology development made by the company after obtaining a number of national patents. Yang days pump company specializing in new feed pumps, fire pumps and other pump development. They rely on Tianjin Electrical Technology Institute of Science and Technology, Hebei Province Pump Quality Supervision and Inspection Station for technical support, absorbing the essence of domestic and international pump technology, developed a water-immersed multi-stage feed pump. The utility model overcomes the disadvantages of the centrifugal pump for complex conditions such as constructing an underground pumping station in the field of fire protection, overcomes the disadvantages of limited usage of the submersible pump in a reservoir, and realizes the purposes of convenient use, environmental protection and energy saving, and durable anti-corrosion. Hebei Institute of Scientific and Technical Information on the domestic pump industry science and technology information query, come to "no similar information in the domestic literature," the conclusion.
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