What are Expansion joints?
Expansion joints are devices used to allow for the heat-induced expansion and reduction that takes place in various states of weather. They are designed to:
Expansion joints are also known as a movement joints.
Advantages of using an expansion joint are as follows:
- Higher pressure range
- Higher temperature range
- Besides fluids and gases, also suitable for abrasive media and solids
- Flexible connection types possible
- Flexible extension possibilities
Typical applications of expansion joints are in:
- Power Station flue ducts
- Gas turbine exhausts
- Boiler penetrations
- Industrial furnace off gas ducts
- Ventilation ducts
- Smelter off gas ducts
- Turbine Exhausts
- Cement works
- Where vibration needs to be absorbed
When selecting expansion joints it is important to select a fabric suitable for the application. Movements can be caused by thermal expansion of ducting system, wind conditions or vibrations from other system components or machines. In addition, fabric expansion joints can also serve as seals and compensate for installation misalignments.