Installation instructions
1. The quality of pump installation has a very important impact on the smooth operation and service life of the pump, so the installation and correction work must be carried out carefully and not hastily.
2. The installation height, length and diameter of the pump suction pipe should meet the calculated value, strive to be short, reduce unnecessary losses (such as elbows, etc.), and ensure that the pump does not exceed its allowable NPSH when working.
3. There should be stents for suction and discharge pipelines. The pump is not allowed to bear the load on the line.
4. The place where the pump is installed should be spacious enough to facilitate the maintenance work.
Installation order
1. Place the unit on the basis of buried anchor bolts, and use pairs of wedge pads for correction between the base and the foundation.
2. Loosen the coupling, put it on the pump shaft and the base with a level, adjust the wedge pad, correct the level of the unit, and tighten the anchor bolts appropriately to prevent walking.
3. Correct the concentricity of the pump shaft and the motor shaft, and the allowable deviation is 0.1 mm on the outer circle of the coupling road, and the gap between the two coupling planes should be 2~4 mm, and the clearance should be uniform with a tolerance of 0.3 mm.
4. After connecting the pipeline and determining the direction of rotation of the motor, connect the coupling and check the concentricity of the shaft again.
5. After 2~3 hours of actual trial operation of the unit, the final inspection will be made, and if there is no bad phenomenon, the installation will be considered qualified. During the commissioning process, the temperature and vibration of the bearing are checked as follows:
6. During the installation process, in order to prevent debris from falling into the machine, all the holes of the unit should be covered.
7. In order to prevent the debris in the pipeline from entering the pump, a filter should be installed in the pump glue for the newly installed pipeline, and its effective cross-section should be greater than 2~3 times of the cross-section of the suction pipe.