Requirements for temperature of double flange electric ball valve during welding The double flange electric ball valve can be used as a pipeline compensation joint in the circulating water pipeline system. When welding the double flange electric ball valve, the heat conduction needs to be preheated, so it needs to wait for a while. After preheating, there will be no automatic prompt, so the double flange electric ball valve welded with welding tools has certain error. Although the product has temperature error during welding and can not fully control the temperature, it has a great hidden danger for the use of the double flange electric ball valve after welding.
The interface between the double flange electric ball valve and other equipment shall be welded. When the temperature cannot be controlled, errors will occur. Therefore, the connection between the double flange electric ball valve and other equipment is very weak. In the later use, when there are corrosive substances in the pipeline transportation, the connection between the double flange electric ball valve and other equipment is easy to cause leakage, which will affect the service time of the pipeline.