Steinen (0984S1-75) 1.75GPH, ugello 45S

Steinen oil nozzle, catalogue article 908.892.097, manufacturer code 0984S1-75, rated 1.75 GPH with a 45° spray angle. This is a precision consumable component that atomises fuel oil into a fine conical spray for complete combustion in a burner. The nozzle is a replaceable wear part; its flow rate, spray angle, and pattern must match the burner data plate exactly. A nozzle with the correct GPH but wrong pattern will cause sooting, pulsation, or unstable ignition. Parts of this type are selected by flow rate (in GPH or kg/h at the reference pressure), spray angle (30–80 degrees), pattern (hollow, solid, semi-solid), and thread size. The angle and pattern define how the flame sits in the combustion head. When replacing, always verify all three parameters against the burner specification. Consult the burner manual for the exact nozzle type required.