De Dietrich 97955812 Ugello Danfoss 0,75 - 60H

The De Dietrich 97955812 Danfoss nozzle 0,75-60H is an oil nozzle for pressure-jet burners. The catalogue article is 336.892.001, and the manufacturer codes are 97955812 and 336.892.001. Parts of this type are precision consumables that atomise fuel oil into a fine cone, allowing complete combustion in the burner’s blast tube. Such nozzles are selected by three parameters: flow rate (given in USGPH at a reference pressure, typically 7 bar or 100 psi), spray angle (60° in this case), and spray pattern (hollow, solid, or semi-solid). The thread size must also match the burner’s nozzle holder. The 0,75 GPH rating and 60° angle are printed on the nozzle body. When replacing a nozzle, all three parameters must match the burner data plate: using the correct flow rate but the wrong pattern can cause sooting, pulsation, or unstable ignition. Burners of this class rely on the nozzle to produce a stable flame shape that fits the combustion head geometry. Nozzles are fitted at the end of the oil pump supply line, typically after the solenoid valve and preheater. They should be handled with clean tools and stored in their original packaging to avoid damage to the precision orifice. During replacement, inspect the nozzle holder for dirt or carbon and replace the gasket if required.