Ugello Fluidics W1-250-50

The Fluidics W1-250-50 nozzle, catalogue article 480.892.099, is an oil nozzle listed under the burners and boilers category. Parts of this type are precision consumables that atomise fuel oil into a fine spray cone to achieve complete combustion. In the fuel-oil supply system, the nozzle is the final delivery component; it connects to the oil pump and solenoid valve, and often receives preheated oil. The nozzle’s spray pattern, angle and flow rating determine how the flame sits inside the combustion head and how efficiently the burner operates. When selecting a replacement, three parameters must be read from 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 match the nozzle adapter. Using a nozzle with the correct rating but a wrong pattern can cause sooting, pulsation or unstable ignition, so all three parameters must be verified. Because nozzles wear over time, replacement is a routine maintenance task; the old nozzle should be compared against the burner manufacturer’s specification before fitting a new one. No additional performance data, compatibility with specific burner models or approval marks are provided for this particular article. As with any oil nozzle, proper handling (avoiding contamination of the orifice) and correct seating torque are essential for reliable ignition and clean burn.