1. In the pump and motor direct connection drive, should pay attention to the pump shaft and the motor output coaxial degree; pump installation accuracy and had great influence on the pump running stability and service life. Therefore, it is necessary to carefully installation and calibration.
2. Pump coupling must be tightened with a nut, and the lock nut, beware of loose nut, otherwise easy to cause the impeller to move, resulting in mechanical failure.
3. In order to enable the pump body to maintain a certain storage fluid, in order to achieve a better careful ability and prevent dry friction mechanical seal, the pump must be imported higher than the pump shaft center line.
4. Suction pipe installation should pay attention to:
A. Suction installation height of not more than 5.5 meters, when conditions permit, suction mouth installation height should be as much as possible low, and try to shorten the suction pipe length, less loaded elbow. This will help us to shorten the time of self - priming and improve self suction function.
B. A suction pipe valves, flanges should be to prevent leakage and leakage of liquid, the suction line does not allow the existence of the phenomenon of leakage.
C. Should prevent the pump body from inhalation of debris such as solids, for this purpose should be set on the suction pipe filter. The effective filtration area of the filter should be 2~3 times of the section of the suction pipe, and the filter should be checked regularly.
D. Suction pipe and spit out the pipeline should have their own stent, pump body itself does not allow the line by line.
5. The pump in the installation, should make the pump and pipeline static grounding resistance to achieve its requirements.
6. The installation should be strictly check the pump shell and the pipeline has no stone, sand and other debris.
7. Correction pump coupling and motor coupling installation and installation of clearance and coaxial degree, the difference between the allowable deviation of 0.1 mm. The height difference between the pump shaft and the motor shaft can be adjusted in the copper and iron pad on foot.
8. After the actual operation of the unit 3-4 hours, as the final inspection, such as no bad phenomenon, it is believed that the installation in the test run should check the bearing temperature, the temperature of the bearing body should not be more than 70.
9. Change the pump bearing body fan is equipped with cooling room device cooling water connector for 12 of the pipe or plastic pipe with a plastic pipe, the thread size of M12x1.25.
10. In the pump outlet pipeline, such as a one-way valve installed in the self priming process can not make the pump discharge smoothly, should be in the outlet of the pump and the exhaust pipe and valve.
