1. Check and precautions before installation: 1) operating environment should comply with the conditions of use. 2) the actual flow rate, head should be consistent with the performance curve, the optimum flow rate range is between 80% to 120% of rated flow; the flow rate exceeds 120% of rated flow may cause serious damage to the unit. Assembly quality 3) Check the unit is good, without loosening fasteners, cables for damage, NSQ500-35-110, power supply and electrical equipment is reliable. 4) Check the supply voltage, frequency and whether the nameplate matches the requirements; check starting, control, protection facilities are starting to be intact. 5) Check the oil in the oil chamber is moderate; unit at the vertical position to the fuel inlet oil level should be, or should be, such as turbine oil to taste. X. What is a characteristic curve of the pump? Usually a graph showing the relationship between the main parameters is called the performance curve or characteristic curve of centrifugal pumps, NSQ800-25-110, in essence, pump performance curves are external manifestations of the movement of the liquid in the pump by actual demand too. Characteristic curve include: flow - lift curve (QH), flow - efficiency curve (Q-η), NSQ600-30-110, flow - power curve (QN), flow rate - NPSH curve (Q- (NPSH) r ), the role of the pump performance curve arbitrary flow point, you can identify a group opposed to its head, power, efficiency and cavitation margin value on the curve, this set of parameters is called working conditions, referred to as working conditions or operating point condition Centrifugal maximum efficiency point is called the best situation, the best operating point is generally design points. General centrifugal pump that is rated to design points and best operating point coincides with or is very close. In practice separation efficiency interval run, NSQ, namely energy efficiency, but also ensures that the pump is working, understand the important performance parameters of the pump. NSQ | NSQ1000-18-110 | sand suction 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.