1, for example, the user uses the ISW horizontal centrifugal pump products and liquid level in the installation than the pump inlet pipe is low, not to install the valve cause horizontal centrifugal pump to appear the phenomenon, this situation should install the valve can restart diversion pump, self suction centrifugal pump or change to a more suitable.
2, turn the parts loose or damaged, tighten loose parts or replacement.
3, the stent is not strong or pipeline caused by pump support pipeline vibration, the solution is to strengthen the pipeline support, should not rely on pump support pipe.
4, the pump into the metal objects or other objects caused by, or between the impeller and pump casing there is friction, the solution to remove the pump body check to eliminate friction.
Centrifugal pump, the newly installed 5 most causes of the centrifugal pump noise belongs to installation problems such as the import and export pipeline pump installation not in accordance with the standard diameter but increase the pipe diameter, resulting in centrifugal pump cavitation phenomenon appeared before a large vibration centrifugal pump with centrifugal pump noise phenomenon, can close the outlet valve or change the caliber of pipeline settlement.
6, the centrifugal pump rotor or rotor imbalance, this situation should be re balanced rotor.
7, the coupling of the centrifugal pump included in the horizontal multi-stage centrifugal pump due to pump shaft and motor shaft on the cause of the poor, mechanical vibration and noise, the solution is to re correct the coupling.
8, bearing wear is too serious, leading to too large clearance, it should be re replacement of the new bearings.
9, the anchor bolts loose or loose foundation caused by check and tighten the loose parts or replacement.