Fluidics W1-100-45 nozzle

This is an oil nozzle from Fluidics, catalogue article 480.892.084, listed under the oil nozzles category. The article code identifies the specific variant within the Fluidics range. An oil nozzle is a precision consumable that atomises fuel oil into a fine spray cone, allowing it to mix with combustion air and burn completely. The flame shape and stability depend on three nozzle parameters: the flow rate (given in USGPH or kg/h at a reference pressure), the spray angle (typically between 30° and 80°), and the spray pattern (hollow, solid, or semi-solid). The thread size must also match the burner’s nozzle holder. When replacing a nozzle all three parameters must match the burner manufacturer’s specification. A nozzle with the correct flow rate but an incorrect pattern can cause sooting, pulsating combustion, or unreliable ignition, regardless of brand. The nozzle is mounted at the end of the oil pump supply line, downstream of the solenoid valve and any preheater, and directs its spray into the combustion head’s air cone. Because nozzles are wear items that degrade over time through carbon build-up or erosion, an exact replacement is required to maintain burner efficiency and safe operation. The Fluidics W1-100-45 designation should be cross-referenced against the burner’s data plate for flow rate, angle, and pattern before ordering.