Excess Air Gas Burner 1422
Enquiry
1422 Excess Air Gas Burners are commonly used on heat treat and nonferrous melting furnaces, kilns, ovens, air heaters, dryers, chemical process equipment, and other applications where superior temperature uniformity is required.
Performance From Fuel Rich To Xces Air With Low NOx Emissions
These sealed-in, nozzle-mix burners are stable over a wide range of air/gas ratios from large amounts of Xces air, to stoichiometric air/gas ratio, up to 50% Xces fuel. Burners can be ignited at rich, lean, or correct air/gas ratio, then immediately turned to high fire.
Advantages Of Xces Air
Xces air can improve temperature uniformity by avoiding hot spots in front of burners, by churning furnace atmosphere to reduce stratification, and by creating positive furnace pressure to eliminate cold air infiltration. Xces air can give very high effective burner turndown.
Application Temperature
The 1422 burners can be used with chamber temperatures up to 1100° C. If furnace temperature could rise above 850° C after shutdown, some air should be maintained through the burner to prevent overheating.
Standard Construction
Burner bodies are heat resistant cast iron with Inconel air tubes. Mounting plate and tile assembly can be separated from the burner body for installation convenience. Air and gas connection orientation can be rotated in 90° intervals.
| Burner Designation | Combustion Air Capacities, scfh — Air Pressure Drop Across the Burner in inches of WGP | Approx. Flame Length in mm with 27" wg main air | Maximum % Xces Air* | |||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 7 | 14 | 21 | 28 | |||
| 1422-2A | 200 | 420 | 910 | 1270 | 1500 | 1920 | 458 | 300 |
| 1422-3A | 360 | 810 | 1800 | 2450 | 3100 | 3600 | 608 | 450 |
| 1422-4A | 560 | 1320 | 2600 | 3820 | 4500 | 5500 | 760 | 450 |
| 1422-5A | 750 | 2050 | 4350 | 6300 | 7650 | 9050 | 912 | 500 |
| 1422-6A | 1600 | 3100 | 7200 | 10300 | 12700 | 14750 | 1216 | 500 |
| 1422-7AA | 1900 | 3400 | 8100 | 12100 | 15000 | 17300 | 1520 | 600 |
| 1422-8AA | 3100 | 7250 | 14000 | 20200 | 23100 | 27000 | 1520 | 2000 |
| 1422-9AA | 3650 | 8150 | 16600 | 23550 | 28000 | 32500 | 1824 | 2000 |
| 1422-10AA | 4800 | 11000 | 22600 | 31500 | 37700 | 43500 | 2128 | 2000 |