Delavan 80X70A Oil Burner Nozzle 0.80 Gph 70 Degree Hollow Cone

Product Description

The DELAVAN 80X70A is a hollow-cone oil burner nozzle rated at 0.80 gallons per hour (GPH) with a 70-degree spray angle. It is designed to atomize fuel oil into a fine, evenly distributed hollow-cone pattern suited to burners operating with open airflows or larger flame retention heads. The brass housing and precision stainless-steel orifice maintain consistent flow rates and resist fouling in high-temperature environments. Licensed HVAC technicians and oil burner service pros install this nozzle as part of routine combustion system maintenance or when restoring burner performance after fuel contamination or wear.

The 80X70A fits residential and light commercial oil-fired heating equipment including forced-air furnaces, boilers, and water heaters that require a 0.80 GPH hollow-cone nozzle at a 70-degree angle. It threads directly into standard 9/16-24 UNEF nozzle adapter fittings. The hollow-cone spray pattern promotes steady ignition and low-smoke combustion in systems matched to this flow rate and spray geometry, making it a direct service replacement for worn or clogged nozzles in annual tune-up work.

Key Features

• 0.80 GPH flow rate provides calibrated fuel delivery for matched burner systems
• 70-degree hollow-cone spray angle suited for open-airflow burner configurations and larger flame retention heads
• Brass housing construction resists corrosion and withstands high-temperature burner environments
• Precision stainless-steel orifice maintains consistent atomization and resists fouling
• 9/16-24 UNEF thread form fits standard nozzle adapter fittings for a direct, leak-free installation
• Overall length of 1.625 inches and 0.75-inch outer diameter for OEM-style fitment

Compatibility

Designed as an OEM-style replacement nozzle for oil-fired residential and light commercial heating equipment requiring a 0.80 GPH hollow-cone nozzle with a 70-degree spray angle and 9/16-24 UNEF thread.

Installation Notes

Oil burner nozzle replacement is performed by licensed HVAC technicians or qualified oil burner service technicians. Shut down the burner and allow the system to cool completely before removing the nozzle line assembly. Use an appropriate nozzle wrench to avoid damaging the nozzle adapter; do not over-tighten. Always verify nozzle flow rate, spray angle, and pattern type against the burner manufacturer specifications before installation, and perform a combustion analysis after startup to confirm proper air-fuel ratio and flame quality.

Technical Specifications

• Flow Rate: 0.80 GPH
• Spray Angle: 70 degrees
• Spray Pattern: Hollow Cone
• Thread Size: 9/16-24 UNEF
• Overall Length: 1.625 inches
• Outer Diameter: 0.75 inches
• Housing Material: Brass
• Orifice Material: Stainless Steel

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 80X70A