Delavan Oil nozzles 00750-45W7

The Delavan 00750-45W7 is an oil nozzle with a capacity of 7.5 gallons per hour and a spray angle of 45 degrees. It features a W spray pattern, which is an 'all purpose' type that is neither truly hollow nor solid, and can often be used in place of either solid or hollow cone nozzles. This nozzle is designed for fuel dose adjustment, fuel spraying, flame formation, fuel economy, and reducing emissions in burners. It is compatible with flow rates between 0.40 and 8.00 gph, with lower flow rates tending to be more hollow. The article number is 345.892.068.

Oil nozzles of this type are selected based on the required fuel flow rate (capacity) and spray angle, which must match the burner's specifications. The spray pattern (solid, hollow, or semi-solid like W) should be chosen according to the burner's air pattern and combustion chamber design. Before ordering, verify the nozzle's capacity and angle against the burner manual or existing nozzle markings. Installation involves removing the old nozzle and installing the new one with the correct torque, ensuring the O-ring or sealing surface is clean and undamaged.

When oil nozzles of this kind fail or become clogged, the burner may produce an uneven flame, soot, or incomplete combustion, leading to increased fuel consumption and emissions. The equipment might fail to ignite or shut down unexpectedly. Check the nozzle for carbon buildup, wear, or blockage, and replace it if the spray pattern is distorted or the flow rate is inconsistent.