General

SFC series offers an epoch making solution to industrial needs for energy saving by a low excess air combustion throughout the load range of the boiler, applicable from a small to a large sized powering boiler.

Burner Structurs

The air register composes of a primary and secondary air throat with each damper that controls the airflow according to a load change.Obtaining the low excess air combustion at a low load condition, the primary air throat is sized to handle combustion air of up to 50% burner load.At a high load condition, the secondary air throat with swirlers facilitates air/oil intimate mixing and sustains the low excess air combustion, in that below a 50%load, only the primary air throat is activated to fire by closing the secondary air damper while it's opening is controlled at over a 50%load.