1. Check the installation quality
After installation, a comprehensive inspection of the installation quality of the expansion joint should be carried out. Including checking whether the flange connection is firm, whether the seal is tight, and whether the bolts are loose. If any problems are found, they should be dealt with in a timely manner to ensure the normal operation of the joint.

2. Regular maintenance
During use, the expansion joint should be regularly maintained. This includes checking the wear of the sealing ring, cleaning impurities in the connection area, and checking the tightness of the bolts. If severe wear of the sealing ring or loose bolts are found, they should be replaced or tightened in a timely manner to ensure the normal operation and safety of the joint.

3. Record operational data
In order to better understand the operating status of expansion joints, their operating data should be recorded regularly. Including parameters such as temperature, pressure, and flow rate of pipeline media, as well as displacement and deformation of joints. By comparing and analyzing these data, problems with the joints can be identified in a timely manner and corresponding measures can be taken.