Delavan Oil burner nozzles P0065-45W4

The Delavan P0065-45W4 is an oil burner nozzle with a capacity of 0.65 gallons per hour and a spray angle of 45 degrees. It features a W spray pattern, which is a type of hollow cone pattern. This nozzle is designed to atomize fuel oil under pressure, creating a fine mist for efficient combustion in burners. It is commonly used in residential and commercial heating systems.

When selecting a replacement oil nozzle, it is essential to match the capacity (in gallons per hour), spray angle, and spray pattern to the burner's requirements. The nozzle must be compatible with the fuel type and the burner's pressure range. Installation involves removing the old nozzle, cleaning the adapter, and tightening the new nozzle to the specified torque without over-tightening.

Oil nozzles can fail due to clogging from dirt or debris, wear from prolonged use, or internal damage. Symptoms of a failing nozzle include poor combustion, soot buildup, uneven flame, or difficulty igniting. Regular inspection and cleaning can help identify issues early, but replacement is often necessary when performance degrades.