Delavan Oil burner nozzle PA110-70R7

The Delavan PA110-70R7 is an oil burner nozzle with a flow rate of 1.1 gallons per hour and a spray angle of 70 degrees. It features an AR spray pattern, which is a solid cone type with a slightly lower concentration of droplets in the center, suitable for low to medium capacity burners up to 2.00 GPH. The nozzle atomizes fuel under high pressure into fine droplets, which are evenly distributed in the air stream to achieve an optimal fuel-air mixture for efficient combustion. This component is categorized as an oil nozzle and is identified by SKU PA110-70R7 and article number 345.892.298.

Oil burner nozzles of this type are selected based on three key specifications: flow rate (in gallons per hour), spray angle (in degrees), and spray pattern (e.g., solid cone, hollow cone). Before ordering, verify the existing nozzle's markings or consult the burner manual to match these parameters. Installation involves removing the old nozzle, cleaning the mounting threads, and tightening the new nozzle to the specified torque, ensuring no debris enters the fuel line.

Common failure modes for oil burner nozzles include clogging due to dirt or carbon deposits, which can cause uneven flame, soot formation, or burner pulsation. A worn or damaged nozzle may lead to incomplete combustion, increased fuel consumption, or difficulty igniting. If the burner exhibits these issues, inspect the nozzle for blockages or wear and replace it if necessary.