Product Overview | 4441DMC Gas Burner
Ultra low NOx — Low NOx emissions -- less than 50 ppm typical in 2200°F applications Flexible operating capabilities — Wide operating range -- from 30% excess fuel to 2000% excess air — Flame stability across full range to suit continuous and StepFire (pulse firing) control — Direct spark ignition with wide lighting window Choice of flame supervision systems — Optimized for flame rod — UV as an option Dependable, long lasting cast construction
The Tempest High Velocity Gas Burner continues to be one of the world's most widely used burners. Its high velocity jet action and superior recirculation promoting capabilities have brought both the quality benefit of close temperature uniformity and the productivity benefit of safe higher heating rates to a wide variety of applications up to 3000°F. Diffuse Mode Combustion (DMC) is a flameless technology that can achieve ultra-low NOx emissions and improve temperature uniformity in many furnace applications. DMC technology applied to the industry standard Tempest® burner builds upon proven heat patterns and furnace performance, while reducing furnace NOx emissions to ultra-low levels from auto ignition to 2300°F. By allowing the flame to combust in the furnace, rather than in the burner tile, the maximum flame temperature is reduced, thus lowering NOx. Additionally, a point source of radiant energy that causes temperature non-uniformity is removed. The Tempest® DMC retains all the best features of the 4441 series including low NOx emissions, stable high excess air and excess fuel operation, direct spark ignition, integral air and gas meters, sturdy cast construction, maintainability, and stabilizer durability. Operating limits and expanded ignition and flame supervision capabilities make the Tempest® DMC ideal for use with StepFire™ or any pulse fired control system, as well as with thermal turndown and cross-connected systems.
— Design allows full access to internals — Alloy stabilizer bolted to main body — Built in air purge for observation port — Single gas and air connections — Simple tile construction Common applications — Forge furnaces — Heat treat furnaces
— Roller hearth furnaces — Continuous strip lines — Indirect fired rotary kilns — Ceramic kilns — Most continous or batch furnaces in a NOx sensitive location that operate part or all of the time at a temperature above the fuel's auto-ignition point.
Tempest® DMC. Alumina/mullite tile "A" for fiber wall furnace installation.
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