Steinen 1.35GPH, 60S nozzle

The Steinen 1.35GPH, 60S nozzle is an oil nozzle for use in oil-fired burners where atomisation of the fuel is required for complete combustion. Parts of this type sit between the oil pump and the combustion head; the nozzle receives pressurised oil from the pump and sprays it into the blast tube as a fine cone. The cone is ignited by the ignition electrode, and the resulting flame is monitored by a UV or IR flame detector. A solenoid valve in the oil line typically controls the oil flow to the nozzle, and some systems include a preheater for high-viscosity fuels. Oil nozzles are precision consumables; the flame shape and stability depend directly on three parameters: flow rate (in GPH or kg/h at a stated reference pressure), spray angle (degrees), and spray pattern (hollow, solid, or semi-solid). For this specific article, the rating is given as 1.35 GPH and the angle as 60 degrees, with the letter "S" indicating a solid spray pattern. All three values must match the burner manufacturer’s specification. Using a nozzle with the correct flow but a wrong pattern can cause sooting, pulsation, or unstable ignition. An incorrect angle may shorten or lengthen the flame, leading to overheating of the combustion chamber or incomplete burn. When replacing an oil nozzle, check the burner data plate for the exact GPH, angle, and pattern; also confirm thread compatibility (standard R½" or BSP, but verify with the old nozzle). Handle the nozzle carefully—any damage to the orifice or seating surface will alter the spray characteristics.