0.65 US gallons per hour, 80° solid spray pattern, oil burner nozzle.
It's important when you are replacing a burner nozzle that you use exactly the same size and type.
Your nozzle will have the following data clearly marked :
US gallons / hour - this nozzle is 0.65 USgal/h.
Kilograms per hour - this nozzle is 2.67 Kg/h.
Angle of flame - this nozzle is 80 degrees.
Shape of flame eg: S = Solid H = Hollow - this nozzle has a solid flame.
Every nozzle is tested by Danfoss in the factory, to ensure perfect operation. Danfoss recommends to change the nozzle once a year out of consideration for environment and operating performance.