Delavan Oil nozzle 00500-60W7

The Delavan 00500-60W7 is an oil nozzle with a capacity of 5 gallons per hour and a spray angle of 60 degrees. It is a W type nozzle, which is neither truly hollow nor solid, and can often be used in place of either solid or hollow cone nozzles. The lower flow rates of this type tend to be more hollow. This nozzle is compatible with flow rates ranging from 0.40 to 8.00 GPH. Its article number is 345.892.009.

Oil nozzles of this type are selected by matching the flow rate (in GPH) and spray angle to the burner's requirements. The nozzle type (e.g., solid, hollow, or W) must correspond to the combustion air pattern. Before ordering, verify the existing nozzle's markings for capacity, angle, and type. Installation involves removing the old nozzle and fitting the new one with the correct thread size, ensuring it is tightened to the manufacturer's torque specification.

When oil nozzles of this kind fail or become clogged, the burner may produce an uneven flame, soot, or incomplete combustion. Symptoms include increased fuel consumption, visible smoke, or a pulsating flame. Check the nozzle for carbon buildup or blockage, and replace it if cleaning does not restore proper spray pattern.