Delavan 0.65-45-w Oil Burner Nozzle 0.65 Gph 45 Degree Semi Hollow Cone

Product Description

The Delavan 0.65-45-w is a semi hollow cone oil burner nozzle designed for residential and light commercial oil-fired heating systems. This nozzle delivers a flow rate of 0.65 gallons per hour at a 45 degree spray angle, making it a common replacement choice for technicians servicing forced air oil furnaces, oil boilers, and oil-fired water heaters. The W style designation indicates a semi hollow cone spray pattern, which produces a ring-shaped flame pattern with reduced fuel concentration at the center. This spray type is well suited for pressure-type gun burners where a clean, stable flame is required at lower firing rates. HVAC technicians and oil burner service professionals rely on precise nozzle specifications to maintain proper combustion efficiency, reduce soot buildup, and keep heat exchangers clean. Using the correct nozzle type, angle, and flow rate is critical for safe and efficient burner operation. The 0.65 GPH rating means this nozzle is sized for smaller heating units that require a lower fuel input, which is common in older homes or zone heating applications. Delavan is a well-established manufacturer of oil burner nozzles and is recognized across the heating industry for consistent atomization quality and dimensional accuracy. Proper atomization ensures that fuel oil is broken into fine droplets for complete combustion, which reduces fuel waste and harmful emissions. This nozzle weighs 0.10 pounds and is a direct replacement for standard Delavan W series nozzles of the same size and angle. Always match the nozzle flow rate, angle, and spray pattern to the original equipment manufacturer specifications when performing a burner tune-up or service call.

• Semi hollow cone spray pattern produces a stable, ring-shaped flame ideal for pressure gun burners
• 0.65 GPH flow rate and 45 degree angle suit smaller oil-fired furnaces, boilers, and water heaters
• Precise atomization promotes complete combustion, reducing soot and improving heating efficiency

Product Highlights

The Delavan 0.65-45-w oil burner nozzle delivers accurate fuel atomization at 0.65 GPH with a 45 degree semi hollow cone pattern, making it a reliable replacement for oil heating system service and tune-ups.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 0.65-45-w

Technical Specifications

• Product Type: Oil Burner Nozzle
• Spray Style: W Semi Hollow Cone
• Flow Rate: 0.65 Gallons per Hour
• Spray Angle: 45 Degrees
• Item Weight: 0.10 pounds per each