A Few Tips To Solve The Problem Of Cavitation in Centrifugal Pumps

Centrifugal pump cavitation is a phenomenon specific to hydraulic machinery as well as some liquid-related machines. Cavitation is very damaging to the pump, and special attention should be paid to it in the user's design and selection. So, what are some ways to prevent cavitation in centrifugal pumps?

1. The installation height of the centrifugal pump must be lower than the allowable suction height of the pump.

2. Reduce the resistance of the suction pipeline, such as making the suction pipeline as short and straight as possible, increasing the pipe diameter, reducing pipeline accessories, low valves, elbows, gate valves, etc.

3. The purpose can be achieved by increasing the booster pump, increasing the gas phase pressure of the storage tank, and reducing the temperature of the fluid, that is, reducing the vaporization pressure head. However, it is difficult to operate in practice and increases the cost of a large amount.

4. In addition, the different performance characteristics of the centrifugal pump are considered in the selection, so that it meets the requirements of the working environment conditions, so that it can work reliably at the high efficiency point.

In short, during the operation of the centrifugal pump, it is necessary to pay attention to whether there is abnormal noise, observe whether the pressure gauge is normal, and regularly check the heating of the bearing and shaft seal, and pay attention to whether there is abnormal leakage at the lubrication and shaft seal.