A power plant is divided into a "hot" and a "cold" area. In the "hot" area, the temperature load and the loading of the flue gas with fly ash is decisive. In the "cold" area the rectangular flue fabric compensator is affected by the formation of aggressive condensate, due to the temperature falling below the dew point.

Rectangular flue fabric compensator are installed in coal-fired power plants, including the coal mill inlet and outlet:

Coal dust lines
Secondary lines
Return suction ducts
Coal dust lines and the expansion joints installed here require a special design to prevent the coal dust from settling and possibly igniting within the lines.

Rectangular flue fabric compensator solutions has proved that the high quality standard for maintaining reliable expansion joints is dependent on selecting the right design and the best materials for the existing operating conditions.