Fluidics W1-500-45 nozzle

This article is an oil nozzle from the Fluidics brand, catalogue number 480.892.110. Parts of this type are used in oil burners to atomise the fuel oil into a fine spray so that it mixes with combustion air and burns completely. The nozzle is a precision consumable part – it is subject to wear from the high-pressure oil and should be replaced at regular intervals as part of burner maintenance. Selection of such a nozzle is based on three parameters that together define the flame shape and size: flow rate (usually expressed in GPH or kg/h at a reference pressure), spray angle (typically between 30 and 80 degrees), and spray pattern (hollow, solid, or semi-solid). The thread size must also match the oil line connection. All three parameters must correspond to the burner data plate; using a nozzle with the correct rating but the wrong pattern can cause sooting, pulsation, or unstable ignition. When replacing, check the existing nozzle's markings for these values and confirm them against the burner documentation.