Delavan 125-80b1 Oil Burner Nozzle 1.25 Gph 80B

Product Description

The DELAVAN 125-80b1 is an oil burner nozzle rated at 1.25 gallons per hour (GPH) with an 80-degree spray angle and a B hollow-cone spray pattern. It atomizes fuel oil for residential and light commercial oil-fired heating equipment, converting liquid fuel into a fine mist for efficient combustion. Licensed oil burner technicians install this nozzle as a routine service item during annual tune-ups or whenever combustion analysis indicates poor atomization, high smoke numbers, or off-spec CO2 readings. Correct nozzle selection directly affects combustion efficiency and heat exchanger life.

This nozzle is suited for residential and light commercial oil-fired forced-air furnaces, boilers, and water heaters that require a hollow-cone spray pattern. The 80-degree angle is a common specification for appliances with shorter combustion chambers. It is selected by the GPH rating, spray angle, and pattern type stamped on the burner's combustion head data plate or manufacturer service bulletin. Installers should always verify the replacement nozzle matches all three parameters before installation.

Key Features

• 1.25 GPH flow rate for accurate fuel delivery at rated firing rate
• 80-degree spray angle suits shorter combustion chamber geometries
• B hollow-cone spray pattern for clean, stable flame formation
• Precision-machined orifice for consistent atomization across normal operating pressures
• Standard nozzle thread for compatibility with common nozzle adapters and retention heads

Compatibility

Designed as an OEM-style replacement nozzle for oil-fired burners requiring a 1.25 GPH, 80-degree, B hollow-cone specification. Verify the GPH rating, spray angle, and pattern code against the burner manufacturer's service data before installation.

Installation Notes

Oil burner nozzles are installed by licensed oil burner technicians or qualified HVAC service professionals. Always shut down the burner and de-energize the system before removing the nozzle assembly. Use a proper nozzle wrench to avoid damaging the nozzle adapter or electrodes, and do not over-torque the nozzle into the adapter. After installation, perform a full combustion analysis to confirm proper flame shape, CO2 percentage, and smoke number before returning the unit to service.