Install the pump carefully calculated before mounting height, it is best to add at least o The. And 3m high margin, mounting height should be less than the calculated values.
　　
Should fully consider the impact of flow changes on the NPSH. ~ Pumps, each with a flow point corresponds to a corresponding NPSH different flows, different NPSH. Under normal circumstances, the greater the flow, the lower mounting height. If the pump is running below the rated flow, no problem. If the pump may run in the large flow area, consideration should be given a large flow pump NPSH can not only calculate the rated point, the operating point of the large flow mounting height is recalculated.
　　
The inlet pipe can not be less than the pump suction pipe diameter. Under normal circumstances, the standards in the calculation of the mounting height, the suction pipe diameter is selected pump suction diameter. The actual installation of the suction pipe diameter smaller, then the pump suction resistance, representing an increase of the pump mounting height, increasing the possibility of cavitation.
　　
Pump suction line is installed, you should minimize the use of the number of elbows, reducers, valves. Elbows, reducers, valves drag coefficient is much larger than straight pipe to increase the elbows, reducers, valves, equivalent to greatly increase the straight pipe.
　　
Entrance pipe sealing performance should be intact, not a leak point. ~ Once the leak in the inlet pipe can not form a high vacuum, the liquid can not enter the pump chamber.

keywords: Pump installation, pump cavitation, the use of the pump,