The installation of suction pipe for self - suction pump should be paid attention to:
More than 1 suction inlet, the installation height of 5 meters can, when conditions permit, self-priming pump suction installation height should be as far as possible below the lowest water storage tank level, and try to shorten the length of the suction pipe, less elbow, so as to shorten the time of self-priming, improve self suction function.
2. The valves and flanges in the suction piping should be strictly protected from leakage or leakage, that is, there is no leakage in the suction line.
3, should prevent the pump body inhalation of solid and other impurities, for this purpose, a filter should be set on the suction line. The effective water crossing area of the filter should be 2-3 times the cross section of the suction tube, and the filter should be checked regularly.
4, the suction pipe and the outlet pipe should have its own support, the pump body itself does not allow the load of the pipeline.
5, when the pump is installed, the static grounding resistance of the pump and the pipeline should be reached to its requirements.
6, the installation should be strictly check the pump shell and the pipe has no stone, sand and other debris.
7. Correction of the installation gap and coaxiality of the pump coupling and motor dynamic coupling, and the allowable deviation of the different axial degrees is 0.1mm. The height difference between the pump shaft and the motor shaft in the foot pad on the copper or iron adjustment.
8, after the actual operation of the unit 3-4 hours after the final inspection, if there is no bad phenomenon, the main installation is completed, in the trial operation should check the shaft.
9. The bearing body of the pump has a cooling water connector with a cooling room device for the use of a hose or plastic pipe with a 12 inner hole, and its thread size is M12x1.75.
10, if a one-way valve is installed on the outlet piping of the pump and the gas can not be discharged smoothly during the self suction process, the outlet pipe and valve should be added at the outlet of the pump.
When self-priming pump and motor are connected directly, attention should be paid to the coaxality of pump shaft and motor output. The accuracy of pump installation has great influence on the running stability and service life of pump, so we must carefully and carefully install and calibrate it.
The self - suction pump coupling must be strong and lock the nut, and the nut is locked to prevent the loosening of the nut. Otherwise, it is easy to cause the impeller to move and cause the mechanical failure.
In order to maintain certain storage liquid in the self sucking pump body, so as to achieve better self suction ability and prevent dry friction of mechanical seals, the inlet of the pump must be higher than the central line of the pump shaft.
- Close This Page
- Recommendation：
- Browse：
