Danfoss Oil nozzle 030F4918

This Danfoss oil nozzle, model 030F4918, is a brass conical nozzle with a solid spray pattern (type OD S). It delivers a flow rate of 0.85 gallons per hour (3.31 liters per hour) and is suited for various fuel types. The sintered filter element ensures fuel filtration, and the nozzle has no safety valve. It weighs 0.032 kg net (0.033 kg gross) and is identified by article number 327.892.042.

Oil nozzles are selected primarily by flow rate in GPH and spray pattern type to match the burner's design specifications. The spray angle must correspond to the burner's combustion chamber geometry—this nozzle produces a 45-degree solid spray. Verify the burner's current nozzle specifications before ordering a replacement. Installation requires removal of the old nozzle, cleaning of the mounting seat, and secure fitting of the new nozzle without over-tightening, which can damage the conical seating surface.

A faulty oil nozzle typically causes uneven flame pattern, pulsating combustion, or incomplete fuel atomization, often accompanied by increased smoke or soot deposits in the burner head. If the nozzle clogs or its internal passages narrow, the burner may produce reduced heat output or fail to ignite reliably. Regular inspection of the nozzle tip for carbon buildup, corrosion, or physical damage can identify deterioration before combustion efficiency drops significantly.