First, gear oil pumps and gear pumps should be selected according to the specific requirements of customers.
Second, we need to find out what the medium and viscosity of the gear pump and gear pump are.
Third, the actual temperature of gear pump and gear pump is high.
Fourth, when the gear pump and gear pump are actually used, the working pressure is high, how long the actual pipeline is, how high the highest point is, how many elbow are there in the pipeline.
Fifth, according to the actual pipeline situation of customers, reasonable calculation of gear oil pump, gear pump in actual pipeline resistance, pipeline loss.
Sixth, the medium of the gear pump and gear pump has not corrosiveness, the pH value of the concrete medium, and the corrosion of the medium varies with the temperature in actual use.
Seventh, the gear oil pump, gear pump transmission medium whether there is lubricity, whether it contains particles or Yi Jiejing.
Eighth, whether there is a positive reversal phenomenon in the use of gear pumps and gear pumps. If reverse pumping is sometimes used, it should be noted when ordering. Because the gear pump, gear pump with mechanical seal is forbidden to reverse, and the conventional gear pump oil pump, gear pump if reverse use will make gear pump gear shedding.
Ninth, when gear oil pumps and gear pumps need to work at high temperature, they should be noted when ordering.