Expansion joints are most widely used in the following industries:
The petroleum and chemical industries
- During the exploitation and transportation of oil and natural gas, the pipeline will have displacement and deformation due to temperature changes, geological conditions changes and other factors, and the expansion joint can effectively compensate for these changes.
- In chemical production, the parts of the reactor, heat exchanger and other equipment connected to the pipeline, due to the huge changes in temperature and pressure during the chemical reaction process, the expansion compensation of the pipeline is high, and the expansion joint can prevent pipeline leakage and damage.
Thermal industry
- In the central heating system, the hot water pipe expands and contracts significantly during the transportation process. The expansion joint can absorb the axial and lateral displacement of the pipeline due to temperature changes to ensure the safe and stable operation of the heating pipeline.
- Steam pipelines and condensate pipelines in the process of thermal power generation have high working temperature and pressure, and the thermal expansion problem of pipelines is prominent, and expansion joints are essential components.
Metallurgical industry
- In the process of steel production, the gas pipes, air pipes and steam pipes of blast furnaces, hot blast furnaces and other equipment need expansion joints to compensate for displacement and ensure the normal operation of the pipeline system due to the change of thermal stress under high temperature environment.
Construction industry
- Water supply and drainage systems, fire fighting systems, air conditioning and ventilation systems of high-rise buildings. Because the height of the building causes high static pressure of the pipe and is affected by temperature changes, expansion joints can reduce the risk of pipe damage due to pressure and temperature changes.
