Product Overview | 4225 EcoFornax ™ SLEx
Designed to provide ultra-low NOx emission combustion, the SLEx is effective over a range of capacities offering performance down to 10:1 turndown with potential for lower levels of operation. Built with a single air connection, a single fuel connection, and the option of direct spark ignition the SLEx is simple to operate. The burner has a self-supporting tile and is designed for ceramic fiber insulated furnace walls. The SLEx features an innovative mixing technology (patent pending) to improve the functional range of performance while simultaneously providing a compact, stable, ultra-low NOx, flame. This mixing concept has been validated in both computational fluid dynamic (CFD) studies and laboratory environments to optimize the ratios of air and fuel in each section of the burner. PRODUCT HIGHLIGHTS — Ultra-low NOx emissions — Single air and gas connections — Direct spark ignition — Compact flame geometry — No FGR required — Hard refractory or fiber wall compatible — Self-supporting tile refractory — Medium velocity — Compatible with combustion chambers up to 2200°F — Designed for 20"w.c. back pressure — 20% excess fuel to 90% excess air operation; range increases at lower capacities
MARKETS AND APPLICATIONS
The SLEx is designed for ultra-low NOx applications, including: — Thermal Oxidizers — Air Heaters — Ovens and Dryers — Furnaces
CAPACITY AND PERFORMANCE:
The SLEx is available in nine (9) sizes, as listed in the table below.
Burner Size
-6 25
-7 25
-8 25
-9 25
-10-A
-10-B
-12
-14
-16
Air Pressure ("w.c.) 40% XSA
25
25
25
25
25
Air Flow (scfh) 60°F
8,600
14,400
31,000
54,000
99,000
126,000
155,000
198,000
246,000
Fuel Pressure (psig) 40% XSA Input (Btu/h HHV) 40% XSA
3
3
3
3
3
3
3
3
3
650,000 1,100,000 2,300,000 4,100,000 7,500,000 9,500,000 11,700,000 14,900,000 18,600,000
Note: Light of Recommendations: Recommended light-off conditions are 1.0-1.5"w.c. air pressure and 4-6" of gas pressure. Light off should be between 10-40% XSA.
Bulletin 4225 page 2
Note: Maximum XSA% at high fire is 90% while low fire is 200% XSA. Low fire is 10:1 from max rated capacity.
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