Vertical sewage pump is widely used in industrial sewage among them, because of its role in the transmission of some industrial liquid, it is often the case of failure, the following for you to analyze the cause of the vertical sewage pump malfunction and Exclusion method it. Analysis of vertical sewage pump failure causes and troubleshooting Vertical sewage pump causes of failure and troubleshooting methods: Failure phenomenon: do not start and run the cause: 1, feed lines have broken. 2, the voltage is too low. 3, no axial gap between the two half coupling and stuck. 4, impeller stuck by debris. 5, impeller and volute close. 6, nut failure peace key damage to the impeller. 7, the coupling key damage. Remedy: 1, check the fuse and wiring fuse, and replace it. 2, increase the voltage or voltage rise and then use. 3, adjust the axial clearance between the two half coupling 0.5 mm. 4, remove debris. 5, re-assembly, separation impeller and volute. 6, install flat key and nut. 7, dress up flat key. Symptoms: overload causes: 1, the pump assembly improper rotation difficulties, foreign body stuck. 2, concentricity changes, bearing damage, shaft deformation. 3, spin the opposite. 4, low head, traffic is too large. Remedy: 1, reassemble, remove foreign objects. 2, modify the parts, exchange bearings. 3, change the motor rotation. 4, try to avoid prolonged use. Symptoms: Inadequate flow causes: 1, the mouth was blocked, Mud pit dwarf, less than pump dredge. 2, mud pipe blocked. 3, the motor speed is lower than the rated speed. 4, impeller broken. 5, head is too high, transported far. 6, travel to the opposite. 7, a larger leak. 8, around the impeller debris. 9, the media is too thick or not the road supply. Remedy: 1, remove the suction stopper, move the pump, the volute all buried in the mud dung water. 2, check the pipeline, remove the block object. 3, increase the motor speed. 4, exchange impeller. 5, reduce head, shorten the delivery distance. 6, change the motor rotation. 7, check the cause of the leak, and replace the other pieces caused by the leak. 8, remove debris. 9, dilute medium, increase the supply. Symptom: Noise and vibration causes: 1, impeller and volute friction. 2, the bearing is damaged or less oil. 3, pump shaft and motor do not mind, shaft bending. 4, nut loose. 5, there are debris in the volute. 6, there are hard objects in the working fluid. 7, there is air infiltration mouth. 8, pumping liquid temperature is too high. Remedy: 1. Check the pump assembly and adjust it. 2. Exchange bearings or refueling. 3. Concentric, correct axis. 4. Tighten the nut. 5. Exclusion of debris. 6. Control into the pump debris standards, encryption filter. Deep buried volute. 8. Lower the temperature of the liquid. Further reading: Motor IFAT China's top ten brands Guangzhou Exhibition building water pump manufacturers ranking ptc Show article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor : Gogoing (QQ / wechat:) starting: http://beng.liuti.cn/ (service hotline:)
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