There are many reasons for slurry pump cavitation. After cavitation, the pump will produce noise, vibration and insufficient pump output, which will seriously affect its life. 1. Slurry pump cavitation leads to insufficient pump output. Insufficient pump output means that head and flow are the indicators that the pump should achieve. There are two reasons for this phenomenon. Cavitation characteristics were not fully considered when designing the conveying system. If the critical cavitation flow rate is less than the required flow rate, cavitation will occur under the critical cavitation flow rate during the operation of the slurry pump, resulting in a significant drop in the head of the slurry pump and insufficient output. The solution to this problem is to change the pipeline installation system, or replace the pump with better cavitation performance, so that the cavitation allowance of pipeline installation is greater than the cavitation allowance required by the pump at the required flow rate. 2. Suction pipe is blocked, which causes cavitation of slurry pump. It is easy to cause cavitation of pump, resulting in insufficient pump output. Cause: Large particles or long fiber materials block the pipe inlet, impeller inlet, filter inlet and pump inlet. The valve is damaged and cannot be fully opened. Solution: Remove the blockage and repair the inlet valve of the pump. 3. Slurry pump running in cavitation state will cause vibration and noise of the pump, and also greatly reduce the service life of the pump. Slurry pump has serious cavitation, and the pump can't even work. 4. Common reasons for slurry pump running in cavitation state are as follows: a. Slurry pump runs under cavitation due to flow deviation. Solution: Reduce the head of slurry pump to match the pipe head with the required flow. The method of increasing pipe head to match the head of slurry pump with required flow rate will cause energy loss and affect the service life of valve and slurry pump B .. Cavitation caused by adjustment of water inlet and outlet valves of slurry pump runs in a certain unit state, because the lift of slurry pump is higher than the pipe head, which prevents the pump from running under large flow, so close the pump inlet valve to adjust the working flow. This method increases the resistance of the suction pipe. Greatly reduce the cavitation allowance of pipeline. When the cavitation allowance of the pipeline is less than the cavitation allowance required by the pump, the slurry pump will run under cavitation condition. Solution: Open the inlet valve of the pump completely and use the outlet valve of the pump to adjust the running flow, but the solution is to reduce the lift of the pump to solve the problem. Hebei Indik Pump Industry Group Co., Ltd. is a professional manufacturer of slurry pumps, submersible slurry pumps and sand suction pumps. It is an enterprise integrating research, development and production in Hebei Province.