Francis pump Francis pump is between a centrifugal and axial pump between. Francis higher specific speed centrifugal pump is lower than the pump, generally between 300-500. Its head is higher than the axial flow pump, axial flow pump flow ratio but smaller, larger than the centrifugal pump. Chinese name English name Francis Mixed Flow Pump Performance Pump Industry Machinery Manufacturing mixed-flow pump operating parameters to be expressed. Such as flow, head, power, efficiency, and speed. At a certain speed to flow variables, that is, if you change the pump flow 250HW-12 mixed-flow pump, the head, power and efficiency of the pump so the attendant changes. This change in the relationship between the law and integrated into several curves plotted to indicate that this is the pump performance curve. Mixed-flow pump performance curve shape is between centrifugal and axial flow, mixed-flow pump for high head Francis pump 300HW-5, the flow and the relationship between the law of head, flow and power variation is close to centrifugal pumps in use 300HW-7 mixed-flow pump, can be used to close the valve to start when the minimum power, power machine safety. For low head Francis pump variation, performance parameters close to pump, in use, should not be used to start off valves Francis pump, but should open the valve to start when power is relatively small, the motor is not easy to be burned. In view of the above characteristics, Francis pumps for agricultural irrigation in hilly areas. Agricultural pumps (Figure) _300HW-5 _ Francis Francis pump provided by Shijiazhuang-pump Pump Co., Ltd. faction. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) adhere to the "people-oriented" business philosophy, with a professional staff, and strive to provide the best products and services to contribute to society, and to welcome new and old customers throughout the visit, sincere cooperation for a better future. Shijiazhuang-school Pump - your trusted friend, Company Address: 186 Shijiazhuang Youyi Street, Contact: Manager Xu.