Fluidics 55.00GPH, 60SF nozzle

The Fluidics 55.00GPH, 60SF nozzle is an oil nozzle used in pressure-jet oil burners. The article designation includes the flow rate rating and a spray code that together define the nozzle’s delivery and spray characteristics. Oil nozzles of this type atomise fuel oil into a fine, conical mist so that it mixes with combustion air and burns completely. They are precision, consumable components that must be selected to match the burner’s design. When replacing an oil nozzle, three parameters must be verified against the burner data plate: the flow rate (in GPH or kg/h at the reference pressure), the spray angle, and the spray pattern (hollow, solid, or semi-solid). A nozzle with the correct flow rate but a wrong pattern can cause sooting, pulsation, or unreliable ignition. The thread size must also match the nozzle holder. Because the nozzle is a wearing part, periodic replacement is normal practice. In the fuel system, the nozzle is mounted on the end of the oil pump line, downstream of the solenoid valve and, on cold-start systems, the preheater. The spray pattern and angle determine how the flame sits in the combustion head and how it interacts with the air pattern from the fan and blast tube. Correct matching is essential for stable combustion and clean operation.