Delavan Oil burner nozzle 00900-80B7

The Delavan 00900-80B7 is an oil burner nozzle with a capacity of 9 gallons per hour and a spray angle of 80 degrees. It features a B solid-cone spray pattern that distributes droplets fairly uniformly, providing smooth ignition and efficient combustion, particularly in larger burners. This nozzle breaks fuel into small droplets for better air mixing, enables precise fuel dosage control, and contributes to higher efficiency and fuel savings while reducing emissions of harmful substances. It is identified by article number 345.892.279.

When selecting a replacement oil nozzle of this type, ensure the capacity (in gallons per hour) and spray angle match the burner's requirements. The nozzle type (e.g., solid-cone) must be compatible with the combustion head design. Before ordering, verify the thread size and dimensions against the existing nozzle, as these vary among manufacturers.

Oil nozzles of this kind can fail due to clogging from debris or carbon buildup, leading to an uneven spray pattern or reduced flow. Symptoms include poor ignition, flame instability, soot formation, or increased fuel consumption. Check the nozzle for blockages or wear, and replace it if the spray pattern is distorted or the flow rate is inconsistent.