Delavan 0.85-70-w Oil Burner Nozzle 0.85 Gph 70 Degree Solid Cone

Product Description

The Delavan 0.85-70-w is an oil burner nozzle designed for residential and light commercial heating systems. It delivers fuel oil at a rate of 0.85 gallons per hour at a standard operating pressure of 100 PSI. The 70-degree spray angle produces a wide, even cone pattern that promotes thorough atomization of the fuel. This nozzle uses a W-type solid cone spray pattern, which distributes fuel evenly across the full face of the flame. The green vial on this nozzle serves as a quick visual identifier for technicians working in the field, making it easy to confirm the correct nozzle is installed without reading small print labels. Oil burner nozzles like this one play a critical role in combustion efficiency. When fuel is atomized correctly, it mixes with combustion air more effectively, which leads to cleaner burns, lower soot buildup, and better heat transfer. HVAC technicians and oil burner service professionals replace nozzles during annual tune-ups or whenever combustion readings indicate poor performance. The Delavan 0.85-70-w is considered an all-purpose nozzle, making it compatible with a wide range of residential oil-fired furnaces, boilers, and water heaters. Delavan is a well-established manufacturer in the oil burner nozzle industry, known for consistent flow rates and reliable spray geometry. Using a nozzle with the correct GPH rating and spray angle for a given burner is essential for meeting the firing rate specified on the appliance nameplate. Installing the wrong nozzle can lead to over-firing, under-firing, excess smoke, or carbon buildup on heat exchanger surfaces. This nozzle is a direct replacement for standard Delavan W-series nozzles and is compatible with most residential oil burner heads from major manufacturers.

• 0.85 GPH flow rate at 100 PSI operating pressure
• 70-degree wide spray angle for thorough fuel atomization and even flame distribution
• W-type solid cone pattern suitable for all-purpose oil burner applications

Product Highlights

The Delavan 0.85-70-w oil burner nozzle delivers precise fuel flow and consistent spray geometry for efficient, clean combustion in residential oil heating systems. Its green vial makes field identification fast and accurate during service calls.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 0.85-70-w

Technical Specifications

• Flow Rate: 0.85 gallons per hour
• Spray Angle: 70 degrees
• Operating Pressure: 100 PSI
• Spray Pattern: W-type solid cone
• Vial Color: Green
• Application: All-purpose oil burner nozzle