Magnetic pump, pump system is the pump and its accessories, suction lines, discharge lines, aspirating liquid tank, liquid tank general. Today's latest valid order information free to send! Morning latest buyers information free to send! Punch grab Rob here! System lift refers to the unit weight of liquid from the suction level to the level of liquid discharged to the required energy, commonly used symbols H. Said that the unit is m. System head H: is composed of geometric height ha (bit energy), the pressure difference P2-P1 / Pg pressure) and the entire system pipeline (except for the pump itself) resistance loss Hu composed of three parts. The actual head or net head refers to the geometry of the suction level to the discharge level ha As shown in Figure 2-96, for the suction system, Ha = D + h; intrusion system, ha = D ~ h. System characteristic curve System characteristic curve is also called pipeline characteristic curve, which refers to the condition of pipeline, that is, the pressure of pipeline drawing in and out of liquid level, the height of infusion, the length of pipe, the diameter of pipe, the number and size of pipe fittings, and the valve opening degree Given the circumstances, the unit weight of liquid flow through the system required by the outside world to give the energy (ie, system head Hz) and the flow Q of the relationship between the demand curve. The curve is a quadratic parabola.
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