Dysza Fluidics W2-140-50

This is a Fluidics W2-140-50 oil nozzle, catalogue article 480.892.090, listed under the oil nozzles category. The oil nozzle is a precision consumable component that atomises fuel oil into a fine spray cone, enabling complete combustion. It is a replaceable wear item; the nozzle’s rating, spray angle and spray pattern together determine how the flame is shaped in the combustion head. When sourcing a replacement, all three parameters must match the burner data plate. A nozzle with the correct flow rate but a wrong pattern can cause sooting, pulsation or unstable ignition. Oil nozzles of this type are selected by their flow rate (given in GPH or kg/h at a reference pressure), spray angle (typically between 30 and 80 degrees), spray pattern (hollow, solid or semi-solid) and thread size. The nozzle sits downstream of the oil pump and solenoid valve; in some systems a preheater is used to reduce viscosity before atomisation. During the burner start sequence, the control energises the pump solenoid, oil passes through the nozzle and is ignited by the spark from the ignition electrode. After a successful flame is proved by the detector, the burner runs in modulation. When replacing such a nozzle, use only a part whose rating, angle and pattern are exactly as specified on the burner nameplate. Even a small deviation alters the flame shape and can impair combustion efficiency or cause burner lockout. The thread type must also match the adapter in the combustion head – common sizes are 1/8”, 1/4” or 3/8” BSP, depending on the burner design. No additional information about the specific article beyond its catalogue designation is available in the source data.