Delavan 00110-90a1 Oil Nozzle 1.10 Gph 90 Degree Hollow

Product Description

The DELAVAN 00110-90a1 is a hollow-cone oil burner nozzle rated at 1.10 gallons per hour with a 90-degree spray angle. It atomizes fuel oil into a fine, evenly distributed hollow-cone pattern that promotes efficient combustion in residential and light commercial oil-fired heating equipment. HVAC technicians and oil burner service professionals install this nozzle as part of routine burner maintenance or when upgrading combustion performance. The hollow-cone spray pattern is suited to specific burner head geometries where that distribution produces optimal flame shape and heat transfer.

This nozzle is used in oil-fired forced-air furnaces, boilers, and water heaters that require a 1.10 GPH firing rate and a 90-degree hollow-cone spray pattern. It is a standard service part replaced during annual burner tune-ups or when combustion analysis indicates degraded atomization. Proper nozzle selection by flow rate, spray angle, and pattern type is critical to achieving correct firing rate and combustion efficiency.

Key Features

• 1.10 GPH flow rate for precise fuel delivery at the rated firing rate
• 90-degree spray angle for wide flame pattern burner head configurations
• Hollow-cone atomization pattern promotes even fuel distribution at the flame front
• Standard nozzle form factor compatible with common oil burner nozzle adapters
• Designed for use with No. 1 and No. 2 fuel oil

Compatibility

Designed as an OEM-style replacement nozzle for oil-fired residential and light commercial burners requiring a 1.10 GPH, 90-degree hollow-cone spray pattern.

Installation Notes

Oil burner nozzles are installed by licensed oil burner technicians or qualified HVAC service professionals. Always shut down the burner and allow the system to cool before replacing the nozzle. Use the correct nozzle wrench to avoid damaging the nozzle adapter, and inspect the nozzle adapter and strainer for debris during every nozzle change. Verify firing rate, pump pressure, and combustion results with a calibrated combustion analyzer after installation.

Technical Specifications

• Flow Rate: 1.10 GPH
• Spray Angle: 90 degrees
• Spray Pattern: Hollow Cone

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 00110-90a1