Dysza Steinen 4.00GPH, 60S

The oil nozzle is a precision consumable that atomises fuel oil into a fine spray cone, enabling complete combustion. Parts of this type are defined by three parameters: flow rate at the reference pressure (in GPH), spray angle (typically 30–80 degrees), and spray pattern (hollow, solid, or semi-solid). All three must match the burner's data plate; a correct flow rate but wrong pattern can cause sooting, pulsation, or unstable ignition. The nozzle threads into the burner's oil line and is replaced as a unit. This specific article is a Steinen nozzle rated 4.00 GPH with a 60-degree spray angle and the pattern type indicated by the S suffix in its code. Catalogue article 908.892.062; manufacturer code 4.00GPH,60S. It is designed for use in oil burners that accept nozzles of this size and thread configuration. When replacing a nozzle, confirm that the flow rate, angle, and pattern listed on the burner's data plate match those of the part. Nozzles are wear items: deposits or erosion alter the spray, so replace at intervals recommended by the burner manufacturer. Always use a new gasket and avoid overtightening.