1. Self priming pump coupling must be strong, and lock nut, beware of loose nut, otherwise easy to cause the impeller to move, causing mechanical failure.
2. In the self sucking pump and motor direct connection drive, should pay attention to the pump shaft and the motor output coaxial degree; the installation of installing the pump accurately and had great influence on the pump running stability and service life, and therefore must be carefully corrected.
3. In order to enable the body to maintain a certain level of storage liquid, in order to achieve a better self absorption capacity and prevent mechanical seal dry friction, must make the pump inlet is higher than the pump shaft center line.
4. Suction pipe installation should pay attention to:
1). The suction port of the mounting height should not exceed 5 meters, in the conditions permit, suction installation height should be as possible below the pool the lowest water storage level, 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.
2). A suction pipe valves, flanges should be to prevent the leakage or leakage of liquid, namely, inhalation pipe is not allowed to have leakage phenomenon.
3). 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 filter area should be 2-3 times of the section of the suction pipe, and the filter should be checked regularly.
4). Suction pipe and spit out the pipeline should have their own stent, pump body itself is not allowed to bear the load of the pipeline.
5. The installation of pump should strictly check the pump shell and the pipe has no stone, sand and other debris.
6. Correction of self suction pump coupling and motor coupling of the installation of clearance and coaxial, the difference between the allowable deviation of 0.1mm. The height difference between the pump shaft and the motor shaft in the foot pad on the copper or iron adjustment.
7. Self priming pump in the installation, should make the pump and pipeline static grounding resistance to achieve its requirements.
8. Athe actual operation of the unit 3-4 hours, as the final inspection, such as no bad phenomenon, the main installation has been properly, in the test run should check the shaft.
9. Self priming pump bearing body where a cooling chamber device for cooling water connector for 12 of the hose or plastic pipe with the use of the thread, the thread size of M12x1.75.
10. In the self suction pump outlet pipeline, such as a one-way valve in the process of self suction can not make the pump discharge smoothly, should be in the outlet of the pump and then add the exhaust pipe and valve.
