Submersible pumps and suction pumps are essential for farms, but the working principle of the two is not the same. A slight improper use can cause the motor to burn out, causing economic loss and delay in the work of the pig farm. Therefore, it is necessary to master its working principle and use it properly. Miniature submersible pumps and mini self-priming pumps have in common the advantages of small size and low power consumption. Miniature submersible pump pump must be placed in the water, can not work without water. Submersible pump head length, up to 80 meters of general 750w. Mini self-priming pump is that the pump can not be placed in the water, as long as the water pipe on the water, the pump can automatically pump up the water. Its suction up to 5 meters, that is to say as long as the pump away from the water, no more than 5 meters, can automatically suck the water up, do not have to first fill the water pipes, it is convenient, but slightly worse than the submersible pump head. Submersible pump cooling water through the work, and suction pump is cooled by the wind. At boot time should try to avoid the voltage is too low boot, the voltage is too low will make the speed drop, such as less than 70% of the rated speed, start the centrifugal switch will be closed, resulting in a long time to start winding power and fever or even burn Bad winding and capacitor. Do not switch the motor on and off frequently. This is because the pump will run back when it stops. If it is turned on immediately, the motor will start to load, causing the starting current to be too large to burn the winding. The voltage is too high can not boot, otherwise it will cause the motor overheating and burn the motor windings. The most important point is that the suction pump can only be used for pumping towers and water, but can not be used to wash the bar, because the punching is usually installed in the skin head shrinking nozzle or hand press the skin to To reach the water impact, and this is fatal to the suction pump. Because the pump sucked up the water must be automatically released, if the forced squeeze back, over time will cause the motor? Щ bear the scandium harmonic <??? The submersible pump is different, because it has a return function, pumping up the water even if the short switch with no water, it can also be back to the water back, so when the pressure in the water column squeeze tube closure even a short time? , The impact on the motor is not large. However, it must be noted that when the pump is immersed in water, the pump body should stop working when it is exposed to two-thirds of the surface of the water. Otherwise, the motor will be destroyed [because the submersible pump is cooled by water. Handheld String Trimmer,Garden String Trimmer,Cordless Battery String Trimmer,Battery Garden String Trimmer Dtmade Manufacturing Co., LTD , https://www.dtmade.com