Delavan Oil nozzle 00950-45B7

The Delavan 00950-45B7 is an oil nozzle with a flow rate of 9.5 gallons per hour (GPH) and a spray angle of 45 degrees. It features a B spray pattern, which indicates the fuel cone shape. This precision consumable atomizes fuel oil into a fine spray for complete combustion in oil burners. It is mounted on the oil pump line, downstream of the pump and solenoid valve. The nozzle is identified by manufacturer code 00950-45B7 and article number 345.892.280.

When selecting a replacement oil nozzle of this type, verify the flow rate, spray angle, and spray pattern against the burner's data plate. The nozzle must match the specified GPH, angle, and pattern to ensure proper fuel-air mixing. Also confirm the thread type and mounting configuration, as nozzles are typically installed on the oil pump line. The flow rate is rated at a reference pressure, so operating pressure affects actual performance.

A worn or incorrect oil nozzle can cause sooting, pulsation, or unstable ignition. These symptoms may appear as incomplete combustion, excessive smoke, or irregular flame. Check the nozzle for clogging, wear, or damage, and ensure the flow rate, angle, and pattern match the burner specifications.