Submersible submersible pumps are often encountered in the use of oil spills, leakage, trip, head reach, impeller does not turn, low flow, low speed problem, the following questions for these common faults detailed analysis: 1, impeller speed low , head reach Many customers bought to start using a submersible pump, found that the actual lift lift not up to standard, measured and found to have a low speed. This may be wired incorrectly suggested a change in the line of fire. There may be a submersible pump is poor, head reach. 2, submersible water pumps, weakness, remove the submersible pump flow is small, flexible check rotor, the rotor can turn energized. Dismantle pump inspection found loose between the lower end of the shaft and submersible pumps, and the rotor down, so the rotor weakness, output power is small. Using appropriate gasket between the rotor and the bearing pad, so shifting 200WQ300-55-90 pump rotor installation test machine, the fault can be ruled out. 3, the power, do not turn the impeller submersible pump after power has buzzing hum pump impeller does not turn. Cut off the power, struck at the impeller intake, if dial does not move, indicating that the rotor is stuck. Submersible pumps can be disassembled to check whether the lower rotor bearing ball crushing lead stuck rotor; 150wq200-75-90 pump impeller if struck, but not after power impeller turn, failure may be badly worn bearing, when the power generated by the stator magnetic rotor suck and can not rotate. Replace the bearings reassembled pumps, flexible impeller struck troubleshooting. Pump Troubleshooting and Analysis, two-phase operation, the motor humming sound; 4, impeller loose; (e) the pump casing hit the book Zhen Lian Wen produce sound. Fourth, the submersible pump stator winding burn. The main reason is: a motor overload long run, excursion too large pump is running, for a centrifugal impeller pump head too 400WQ1800-10-75, increased traffic caused by overloading. For axial flow impeller pump head caused by too much due to overloading. Water and sediment large, the increase in the proportion of water caused by overloading. 2, wet submersible pump motor is not within the irrigation within oil-filled submersible pump motor oil, the winding fever runtime. 3, single-phase motor starting or single-phase operation. 4, the pump stops frequently open, the motor overheating. 5, submersible dewatering pump working time is too long (over 5 minutes). 6, the motor into the inner mud, bad cooling. 7, cable breakage or bad joints, water infiltration stator damp. Pump | 150wq200-75-90 pumps | sewage pump manufacturers (certified merchants) provided by Anguo City Pump Co., Ltd. Yuan Shi. Shi Yuan Yasukuni City Pump Co., Ltd. (www.shiyuanbeng.com) is specialized in the "IS centrifugal pump, XA centrifugal pump, BA centrifugal, B-type pump, double suction centrifugal pump" of the enterprise, the company of "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Geng wheat.