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　　 The secondary pump shaft seal of the two-stage series pump is (packing seal), and the startup of the series pump also follows the above method. Only after the first stage pump is started, the submersible slurry pump can open the outlet valve of the last stage pump (the opening size is based on the motor current of the first stage pump as the rated power　　 Selection of pipeline diameter: the selection of pipeline shall consider the one-time purchase cost, long-term operation cost and operation reliability.Solingen,　　When assembling the motor and water pump departments below grade , firstly, tighten the nuts evenly between the water inlet joint and the contact plane from the upper part to the bearing seat, install the coupling, pump shaft,SolingenFire deep well pump, fix the impeller and conical sleeve on the pump shaft with a damp cylinder, and conduct hydrostatic test if necessary.Schwyz ,　　 It is also possible that the fan blades of the pump are few and the air volume is insufficient, resulting in poor heat dissipation effect.　　Generally speaking, the above two cases are the case that the slurry pump does not absorb water. The solutions are also introduced. I believe that people can deal with this problem in time. However, if the problem is serious, you must not adjust it at will. At this time, you should find a professional　　The type selection design of submersible slurry pump has a great impact on the service life and operation stability of slurry pump. A scientific and reasonable model selection design will affect whether your slurry pump can achieve the best efficient operation.

　　After the submersible slurry pump leaves the factory, there is generally only outgoing cable, and the user needs to connect it separately during installation. If the connection is wrong, it will seriously affect the normal operation of the pump so we should follow the correct steps to connect.　　Through human auditory , we can compare whether the pump has heavy, miscellaneous, strange and disordered abnormal noise, and can judge the hidden dangers such as looseness, impact and imbalance.　　The supply of shaft seal water must be ensured. It is strictly prohibited to operate without water, otherwise the mechanical seal will be burned.OK or not?,　　Most of the time, we don&#;t know how to choose the pump when we buy it. In fact, we only need to choose the appropriate equipment according to our own use needs when we choose it. It&#;s more like that in a conventional family, when we use it, the flow is small　　What is the cause of pump overload.　　The high-efficiency slurry pump has three characteristics: first, the slurry pump has high operation efficiency and low loss.

　　Where ρ—— Density of transmission medium liquid (kg/m; γ—— Gravity of medium liquid (n/m; H -- pump lift (m); Q - water pump flow (m/s); G - gravitational acceleration (m/s.　　The difference between the shaft power P and the effective power PE is the power loss in the pump, which is measured by the pump efficiency. The pump efficiency is the ratio of the effective power and the shaft power, which is measured by η Indicates.Packaging strategy,SolingenWQ submersible pump parameters,　　Second the service life of the flow passage parts of the pump is relatively long, saving production costs.　　Operation, maintenance and upkeep During the operation of the electric pump, always observe the current, voltmeter and water flow, and strive to make the electric pump operate under the rated working condition.　　Slurry pump Inappropriate model is selected when selecting the pump. In actual use, when the load conditions do not match the model of the slurry pump for example,SolingenVortex pump and pipeline pump, the pump lift used is too high or too low, which will lead to overload,　　 First of all, we need to choose equipment with formal certificates when making choices. We must avoid buying some obsolete or inferior products. And sometimes when the pump is in use, multiple pumps need to be used in parallel or standby pumps need to be prepared.　　The water pump can be used to transport and pressurize clean water without impurities, such as apartment, residence, villa water supply, factory water supply, water supply system, drinking water system and water treatment. In short, there are many uses.　　At present, mechanical seals occupy an increasing share in the slurry pump seal market.