Delavan Oil nozzle P0135-60W1

The Delavan Oil nozzle P0135-60W1 is a precision fuel oil nozzle with a capacity of 1.35 gallons per hour and a spray angle of 60 degrees. It features a W spray pattern, which is neither truly hollow nor solid, and is designed for use with fuel oil. This nozzle is compatible with flow rates ranging from 0.40 to 8.00 gph, and lower flow rates tend to produce a more hollow spray. It is identified by manufacturer code P0135-60W1 and article numbers 3042090 and 345.892.027.

When selecting a replacement oil nozzle of this type, verify the flow rate, spray angle, and spray pattern against the burner's specifications. The thread type (typically 1/8″ BSPT or NPT) must match the oil gun. After installation, check combustion readings such as CO₂ or O₂, smoke number, and flame shape to ensure proper operation.

Using an incorrect nozzle can lead to sooting, pulsation, or unstable ignition. Over time, nozzles may clog or wear, causing incomplete combustion, poor flame shape, or burner shutdown. Regular inspection and replacement are necessary to maintain efficient operation.