Performance 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-5 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 represent 250HW-4 mixed-flow pump, which is the pump performance curve. Mixed-flow pump performance curve shape is between centrifugal and axial flow, mixed-flow pump for high-lift, the flow and the relationship between the law of head, flow and power variation is close to pump, in use, can be used to close the valve start when the minimum power, power machine safety. For low head Francis pump variation, performance parameters close axial flow pump Francis, in the use of mixed-flow pump 200HW-12 should not be used off valve start, but should open the valve to start when power is relatively small, the motor does not easy to be burned. In view of the above characteristics, Francis pumps for agricultural irrigation in hilly areas. Application for conveying medium, chemically neutral or aggressive media clean and pollution. Chemical processes forced circulation, mariculture, city gas works, water treatment systems. Performance parameters Flow (Q): up to 20 000 m3 / h Head (H): up to 30m Working Pressure (P): 1.0MPa working temperature (t): 0 ℃ ~ + 80 ℃ mixed-flow pump, 200HW-12 mixed-flow pump , horizontal mixed flow pump (high merchant) provided by the 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.