选择水泵的主要要求:争取水泵铭牌上注明的流量、扬程和实际需要的流量、扬程(包括损失扬程)一致,水泵的配套功率和动力机额定功率一致,另外,还需注意水泵的转速、转向是否和动力机的相同?水泵进、出口法兰的直径、方向、连接孔等是否合适?选择的管路、附件等应符合经济、安全和水力损失最 Select the main requirements of the pump: for the pump nameplate flow, head and the actual needs of the flow, head (including the loss of lift) the same, the pump supporting power and power machine rated power consistent with the other, but also pay attention to the pump speed, steering Is it the same as the power machine? Is the diameter, direction, connecting hole, etc. of the inlet and outlet flanges of the water pump suitable? The selected piping, accessories, etc. should meet the requirements of economy, safety and hydraulic loss