Flexible seal for a rotary regenerative preheater

A seal assembly for a rotary preheater, the seal assembly comprising:

• a first leaf having a first base section and a first substantially straight elongate section extending away from the first base section and terminating at a first distal end thereof, the first leaf having a first bend located between the first base section and the first elongate section;
• a second leaf having a second distal end and a second substantially straight elongate section extending away from the second distal end towards the first base section of the first leaf;
• a spacer positioned between and secured to the first distal end of the first leaf and the second distal end of the second leaf, the spacer extending along a portion of the first elongate section of the first leaf and forming a gap between a portion of the second elongate section and the first elongate section such that the portion of the second elongate section is spaced apart from the first elongate section, the second elongate section extending beyond an inboard end of the spacer and terminating along the first bend of the first leaf, at a terminus of the second leaf, so that the terminus of the second leaf is slidingly moveable relative to and in compressive engagement with a portion of the first bend.