The North American Tempest® High Velocity Gas Burner is one of the world's most widely used and respected burners.
THE TEMPEST® 4441 LNI
4441 LNI FEATURES
The North American Tempest® 4441 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 tem- perature uniformity and the productivity benefit of safe higher heating rates to a wide variety of applications. Low NOx Injection (LNI) is a flameless technology that can achieve ultra-low NOx emissions and improve temperature uni- formity in many furnace applications. The North American Tempest® 4441 LNI burner combines a 4441 "ASH/FL" style mounting plate and ceramic tile, with an LNI gas injector. They are available with an injector fixed to the optimal angle on the top right or top left of the mounting plate. Integrating the LNI injector into the tile mounting plate makes the assembly more economical and reduces the installed cost of us- ing LNI technology. The North American Tempest® 4441 LNI retains all the best fea- tures 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.
— Low NOx emissions — less than 30 ppm typical in 2400°F applications — 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 — Flame rod — UV Dependable, long lasting cast construction — Design allows full access to internals — Alloy stabilizer bolted to main body — Built in air purge for observation port — Simple tile construction — Long tile life in fiber wall furnaces COMMON APPLICATIONS FOR LNI
— Forge furnaces — Heat treat furnaces — Ceramic kilns
— Variety of other applications, including most continuous 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
Read Handbook Supplement 292 to learn which low NOx tech- nology is right for your application .
Bulletin 4441 LNI Page 2
Made with FlippingBook flipbook maker