Complete flap SBK5 a 9 De Dietrich 83875555

The Complete flap SBK5 to 9 is an air damper assembly designed for SBK5 through SBK9 burners. This flap controls the air intake for combustion, affecting the air-fuel ratio and burner efficiency. Replacing a worn or sticking flap during boiler maintenance helps optimize combustion, reduce emissions, and improve the overall performance of your heating equipment.