Steinen Oil nozzle 6.50GPH / 45SS

This is a Steinen oil nozzle with a flow rate of 6.5 GPH, a 45° spray angle, and an SS spray pattern. It is used to atomise fuel oil in a burner, producing a cone-shaped spray at the stated angle. The 6.5 GPH rating defines the volume of oil delivered per hour at the nozzle's rated pressure. The SS pattern designation identifies the spray shape and distribution produced by this nozzle.

Nozzles of this type are selected by matching the flow rate, spray angle, and spray pattern to the burner's requirements, and by confirming the thread and mounting form fit the nozzle adapter or holder. Before ordering, compare the existing nozzle's markings and dimensions against the replacement, and check that the spray angle suits the combustion chamber geometry. Installation requires the nozzle to seat correctly in its holder with the correct gasket or seal, and the electrode and air settings to be checked afterwards.

Nozzles of this kind commonly fail through clogging of the internal passages or orifice, wear of the metering port, or damage to the spray pattern from contamination or overheating. When this happens, the burner may show a weak, distorted, or off-centre flame, delayed ignition, pulsation, sooting, or a rise in flue gas readings. Checks include inspecting the nozzle for blockage or wear, verifying the spray pattern and angle, and confirming the fuel pressure and filtration are correct.