The motor overheat and high current problems occurred in the pipeline of large circulating water pump. Most of the original flexible valve soft joints were used, but it was found that the rigid electric ball valve was not suitable for replacement. Operation shows that this measure has significantly improved the motor efficiency and achieved certain economic benefits. There are many types of pipe joints, Among them, flexible valve flexible joint (commonly known as "shock absorption throat") and rigid electric ball valve have been widely used in pump house pipelines in industrial and civil buildings. The former is usually used in building pump stations with high requirements for vibration and noise reduction and other small industrial pump pipelines with special requirements
The latter is usually applied to the pressurized water pipeline of large industrial pumps. If the connector is not properly selected, the motor overheat and high current will occur in the water pump part during the operation of the power pipeline. Why does this phenomenon occur? General engineers think that pipeline pneumatic valve products are universal in design. They just select appropriate joint products according to the surrounding use environment. The flexible shock absorption throat of the valve is affected by the vortex generated by the pump during operation, The frequency of the vibration generated by the impact on the valve part is different from that generated by the pump engine, which is transmitted to the pump through the connecting pipe, resulting in the loss of pump power. The vibration frequency of ordinary steel electric ball valve products is the same as that of water pumps. Because they are made of the same material, the engine power can be guaranteed during use.