Delavan Oil burner nozzle 30609-005

The Delavan 30609-005 is an oil burner nozzle with a spray pattern of S (semi-solid). It is designed for use with fuel oil and is a precision consumable component that atomizes fuel into a fine spray for combustion. This nozzle is part of the oil supply line between the pump and combustion head. Its SKU is 30609-005, and it is manufactured by Delavan.

Oil nozzles of this type are selected by three parameters: flow rate in gph (or kg/h) at the reference pressure, spray angle (typically between 30 and 80 degrees), and spray pattern (hollow, solid, or semi-solid). The thread size must match the nozzle adapter in the burner. Before ordering, verify these parameters against the burner data plate or original part specifications. When replacing, ensure the new nozzle has identical flow, angle, and pattern to the one being removed.

Using a nozzle with the correct flow rating but a wrong pattern can cause sooting, pulsation, or unstable ignition. These symptoms indicate a mismatch in spray pattern or other parameters. Check the nozzle for wear or blockage, and verify that the installed nozzle matches the required specifications.