Delavan Oil nozzle 00275-60W7

The Delavan Oil nozzle 00275-60W7 is a precision consumable part that atomizes fuel oil into a fine spray for complete combustion in oil burners. It has a capacity of 2.75 gallons per hour, a spray angle of 60 degrees, and a W spray pattern, which is a versatile 'all purpose' type that can often replace solid or hollow cone nozzles. This nozzle is compatible with flow rates ranging from 0.40 to 8.00 GPH and is identified by manufacturer code 00275-60W7, with OEM equivalent 3042176. It is designed for use with fuel oil and is installed at the end of the oil gun in the burner's combustion head.

When selecting a replacement oil nozzle of this type, three parameters must match the burner data plate: flow rate in GPH (or kg/h) at the reference pressure, spray angle (typically between 30° and 80°), and spray pattern (hollow, solid, or semi-solid). The thread size must also be compatible with the oil gun. Always compare the original nozzle's stamped rating, angle, and pattern code against the burner manufacturer's specification before ordering.

If a nozzle of this kind is incorrectly matched—for example, with the right flow rate but wrong pattern—it can cause sooting, flame pulsation, or unstable ignition. Over time, nozzles can become clogged or worn, leading to poor atomization, incomplete combustion, and increased soot buildup. Regular inspection and replacement are necessary to maintain efficient burner operation.