Delavan 0.80GPH, 60W (1) Düse

This Delavan nozzle is an oil nozzle of the consumable, precision type used in pressure-jet oil burners. It is identified by the catalogue article 345.892.077 and the manufacturer codes P0080-60W1 and 345.892.077. The part is rated 0.80 GPH and carries the spray designation 60W (1) – the numeral in parentheses is part of the article identifier. As with all oil nozzles of this class, the flow rate, spray angle and spray pattern together determine how the atomised fuel cone interacts with the combustion head. When selecting a replacement, all three parameters must match the burner data plate. A nozzle with the correct flow rate but a wrong pattern can cause sooting, pulsation or unstable ignition. The spray angle (typically between 30° and 80°) and the pattern (hollow, solid or semi-solid) are coded in the manufacturer’s designation. In this case the code 60W indicates a 60° angle and a specific pattern, but pattern details should be verified against the burner manufacturer’s specification. The thread size is also a selection criterion, though it is not stated in the available data. Such nozzles are mounted in the burner’s blast tube and receive fuel from the oil pump via the solenoid valve and, where fitted, a preheater. Because the nozzle is a wear item, it should be replaced at intervals prescribed by the burner service manual. Using a nozzle of the correct rating, angle and pattern ensures complete combustion and stable flame detection by the UV or IR sensor.