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Supply wells with submersible pumps | domestic submersible pumps | submersible pump range, selection and use of environmental Submersible Pump Selection professional maintenance of various models of various brands of submersible pumps submersible pump should be chosen according to conditions characteristic right, when selection The main considerations flow, head, installation methods. Only selected head and head closer to actual requirements, energy efficient pumps to run, run the pump will greatly affect poor choice. In general, the deep submersible pump environment should meet the following several aspects: (1) the power frequency is 50Hz, rated voltage tolerance of ± 5% of the three-phase AC power source; (2) the solid content (by mass) not more than 0.01%; (3) the pump intake must lm less water, but diving deeper than the static water level 70m, the lower end of the pump from the bottom of the depth of at least lm; (4) requires a vertical well, the wall is smooth, well pipe shall be staggered. 2.2 deep well submersible pumps installed deep submersible pump installation should first check the power lines, the grid voltage and frequency control switch meets the conditions of use; secondly pump must be earthed measures; check the cabinet are correctly installed and properly grounded; check lifting facilities must be safe and reliable. Pump installed in the following order: (1) Remove the pump is located in central drainage network, water plug and tighten drain plug to clean the machine filled with neutral water and then tighten the drain plug. Check whether the connecting parts of the motor leak, if leak be sealed. (2) with a 500-volt megger insulation resistance of not less than 150 megohms, and turn with a screwdriver to pry the impeller should rotate freely without catching phenomenon. (3) The first short pipes connected to the valve body, with a pair of jaws mounted at short pipes on the flange, and then gently lift the pump into the well, so that plywood is located on the covers. (4) pay plywood sandwiching another long-distance water pipes connected to the short lift, then remove the first pay plywood lifting the other long pipes, and so repeated installed, then cover the splint covers On the covers, the final installation bent pipes, valves, outlet pipe, deep submersible pumps. (5) the pipeline installation process piping should be a good cushion pads between the two flange, fastening bolts should be tightened symmetrical cables to be tied on recess flange pipes; not the cable as sling use, but are not allowed to bruise cable. Note the use of deep well submersible pump deep well submersible pumps installed to run 2.3 to note: (1) should pay attention to the protection of hoisting cables to prevent damage, the use of lifting devices (such as a tripod, crane hoists or electric hoists, etc.) from the weight should be greater than diving Pump weight and allow sufficient leeway. Hanging manually rotating the wheel before the next inspection rotation is flexible, the main contactor contact is good contact, cables and cable joints for cracks, scuff marks, the motor housing grounding reliability, and use a multimeter to check the three-phase line conducting the case. (2) Start the submersible pump should rotate smoothly without abnormal vibration and noise, observed before and after the motor running current and line voltage startup whether there were fluctuations. Note that for the first time after installation or maintenance operation of submersible pumps, the test machine only place to start in order to observe, if found abnormal submersible pumps, should be immediately shut down, check the direction of rotation is correct, if installed properly, find the cause only after troubleshooting run. Supply wells with submersible pumps | domestic submersible pumps | submersible pump model range, professional maintenance of various models of various brands of submersible pumps