The Belt Flap is designed as a heat shield over the belt connecting pin. If your product might be affected by the heat on where the belt connects, order this optional device. The heat flap can be ordered on any of our different belt styles. Most manufactures of textile conveyor dryers do not add this feature to a "standard belt". There are a few that do add this "flap" as their standard. If you want a "Flap", please be sure to ask for this option when getting a quote or when ordering a replacement belt.