5140 Fire All Heavy Oil Burners are rugged, maintenance free, intact burners for burning light or heavy oil on a wide applications. Capable of efficient operation throughout a wide temperature range, they are equally at home on low temperature ovens and high temperatures forge and melt furnaces. Sealed mountings help maintain furnace pressure, controlled atmosphere, and closer fuel/air ratio control—all contributing to better product quality. Fire All Burners have been used for years with great success on all types of furnaces.
5140 Burners are better with 200% or more excess air. They may also be operated with excess fuel without forming carbon if additional combustion air is available in the furnace near the burner. Excess fuel limit with heavy oil is 50% as atomization deteriorates at richer ratios. Burners can be turned down to atomizing air only, but stability limits vary depending on burner size, grade of oil, and furnace atmosphere. For prolonged operation on atomizing air only in furnaces over 1200°C specify an alloy burner nose.
Burners are suitable for some preheated combustion air applications (up to 350°C). Oil viscosity at the burners should not exceed 90 seconds R.W.I; oil pressure at the Ratio controller should be between 25 and 30 psi. Minimum atomizing air pressure at the burner is 24”wg for light oil, 42”wg for heavy oil.