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　　 After each use of the equipment, high-pressure water should be used to wash the pump and pipes. The washing can be stopped until the water has no impurities.Guihu,　　 Remove the wire guard, water strainer and cut the cable from the lead and the three core cable or flat cable connector.　　 Impeller protection in order to ensure the operation of the submersible slurry pump, it is necessary to timely adjust the clearance between the impeller and the front guard plate. When adjusting the impeller clearance, loosen the bolts pressing the bearing box, loosen the adjusting nuts, make the bearing components move forward, and roll the shaft by hand to press theSan Vicente de Canete,　　What is the solution to this situation?　　It is also necessary to clean the ventilation duct to avoid blockage.　　 add water with manual pump. Some pump owners have their own hand pumps. They can also buy or manufacture their own small hand pumps. The gate valve shall be installed at the water inlet. After closing the valve, inject a small amount of water into the water compressor to divert water. When the hand pump discharges water, it means that the pump is full

　　Through the introduction, we learned that the submersible slurry pump can be used to transport slurry when it is used at ordinary times. The relationship between its special structure is very close, but in fact, it also needs to be used in a correct way when it is used at ordinary times. Only in this way can　　Whether the pipeline pump can absorb water and whether the pipeline pump has self-priming depends on the model of the pipeline pump. Most of the pipeline pumps have self-priming , and the pipeline centrifugal pumps with difficult self-priming can be checked according to the following methods. For longer use　　Do a good job of fixing to avoid the motor falling into the water and directly scrapping.Which one is better, long-term operation cost and operation reliability.　　The use of water pumps is related to all aspects of our life. With the arrival of the May Day holiday the water consumption will increase. Therefore, it is necessary for us to choose a suitable water pump.　　The pump can often be selected according to the specific requirements of lift, flow and liquid delivery. The flow range of the delivered liquid is - L / s, the pressure range is .- MPa, and the diesel engine speed range is - rpm. Features: water pump, high automation and performance

　　The utility and durability of the utility model, so the polymer composite materials are generally used in production.Trustworthy,　　It will generate heat, but when it is serious, it will directly burn out the insulation; There may also be some faults in the ventilation system. At this time, it is necessary to check whether the fan of the submersible slurry pump is damaged or rotating　　The motor burns out the winding due to heat dissipation. The water pump shall be lifted and lowered at any time with the change of water level in the well. In case of water reduction or interruption the cause shall be found out immediately or the pump shall be shut down for inspection. The cable shall not rub against the shaft wall to prevent the well water from penetrating into the motor along the cable core after the cable is worn.　　It can improve the mechanical efficiency to a certain extent. Moreover, the molecular structure of the coating itself has good compactness, water and other media from the pump impeller during use, and also reduce the corrosion and rust as much as possibleGuihu,　　 Another possibility is that the gas is sucked in when the pump is in use.　　 Prepare tools and materials: a set of metric box / open-end wrench, bearing puller (commonly known as triangle puller), magnetic dial indicator, outside micrometer, caliper, feeler gauge, square ruler, copper bar,GuihuIrrigation deep well pump, screwdriver with handle, hammer, V-shaped irons of the same specification,GuihuWater well pipeline pump, clean kerosene, oil basin,GuihuHH slurry pump, cotton yarn, etc.　　Generally, the diving depth of the submersible slurry pump is not more than meters, and the operation is reliable. Why not more than meters? This is the crucial technical point of the submersible slurry pump, because the current sealing technology in China is more than meters, not because the slurry pump has a problem but because