Simple structure and working principle 1 centrifugal pump structure, easy to operate, easy to adjust the flow rate, pump, and can apply to a variety of special properties of materials, single-stage centrifugal water pump, it is widely adopted in industrial production. (1) The structure ① centrifugal impeller: the role of the energy to the liquid. According to whether the cover is divided into open, closed and semi-open; ② pump casing: the role is to collect liquid thrown impeller and partially kinetic energy is converted into pressure energy; ③ Shaft: the role of the motor output Power passed to the impeller. (2) centrifugal pump performance curve can be seen from the foregoing discussion, for a centrifugal pump, in the case of fixed speed, water pump, its pressure head, shaft power and efficiency have a one to one relationship with their flow . Graphical representation of these relationships is called the centrifugal pump performance curves, including qV-H curve, qV-Pa curves and qV-η curve, horizontal centrifugal pumps, these relationships are generally determined by experiment. Centrifugal pump characteristic curve generally provided by centrifugal pump manufacturer, plotted to pump the product manual, the measuring conditions are generally 20 ℃ water, the speed is fixed. Typical centrifugal pump performance curve is shown. Centrifugal, single-stage single-suction centrifugal pumps, IS150-125-315A (certification) by Shijiazhuang-Pump Co., Ltd. faction. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) is specialized in "slurry pumps, submersible pumps, sewage pumps, chemical pump, pulp pump, water pump, mud pump, multi-stage" of the enterprise, the company of " honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Xu.