Delavan 0.50-70-a_del-o-flo Oil Burner Nozzle 0.50 Gph 70 Degree Hollow Cone Red Vial

Product Description

The Delavan 0.50-70-A_DEL-O-FLO is a precision-engineered oil burner nozzle designed for residential and light commercial heating systems. It delivers a flow rate of 0.50 gallons per hour at a rated operating pressure of 100 PSI, making it a reliable choice for low-firing-rate oil burners commonly found in home furnaces, boilers, and water heaters. The nozzle features a 70-degree spray angle with a hollow cone atomization pattern, identified by its red vial color coding for easy field identification during service and replacement. HVAC technicians and oil burner service professionals rely on accurate nozzle sizing to ensure efficient combustion, proper heat output, and clean burning performance. Using the correct nozzle type directly impacts fuel efficiency, stack temperature, and CO2 levels in the flue gas. A hollow cone pattern distributes fuel oil in a ring-shaped spray, which works well in specific burner head configurations that require flame shaping toward the outer edges of the combustion chamber. The 70-degree angle is a wide-angle option suited for shorter firebox depths where a broader, more compact flame pattern is needed. Delavan is a widely recognized manufacturer in the oil burner nozzle category, and their DEL-O-FLO line is a standard reference for service technicians replacing worn or clogged nozzles during annual tune-ups or emergency service calls. Nozzles should be replaced at least once per heating season to maintain peak combustion efficiency and prevent carbon buildup. The red vial color designation quickly communicates the hollow cone spray type to technicians working in the field, reducing the chance of installation errors. This nozzle is compatible with standard oil burner assemblies and fits into common nozzle adapters used with Beckett, Carlin, Wayne, and Riello burner systems.

• 0.50 GPH flow rate at 100 PSI operating pressure for precise fuel metering in low-firing-rate applications
• 70-degree hollow cone spray pattern provides wide-angle atomization suited for shallow combustion chambers
• Red vial color coding for fast, accurate field identification during oil burner service and nozzle replacement

Product Highlights

The Delavan 0.50-70-A_DEL-O-FLO oil burner nozzle delivers consistent atomization and reliable combustion performance at 0.50 GPH, making it a go-to replacement nozzle for HVAC technicians servicing residential oil heating systems. Its hollow cone pattern and 70-degree angle are engineered to match specific burner and combustion chamber configurations.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 0.50-70-A_DEL-O-FLO

Technical Specifications

• Flow Rate: 0.50 gallons per hour
• Operating Pressure: 100 PSI
• Spray Angle: 70 degrees
• Spray Pattern: Hollow Cone
• Vial Color: Red
• Product Type: Oil Burner Nozzle