Delavan 50-80b1 Oil Burner Nozzle Type B Solid Cone 0.50 Gph

Product Description

The DELAVAN 50-80b1 is a Type B solid cone oil burner nozzle rated at 0.50 gallons per hour (GPH) with an 80-degree spray angle. It meters and atomizes fuel oil into the combustion chamber of a residential or light commercial oil-fired heating appliance, producing a solid cone spray pattern that promotes efficient ignition and stable flame characteristics. The 80-degree angle suits shorter combustion chambers commonly found in retention-head oil burners. Proper nozzle selection directly affects combustion efficiency, stack temperature, and overall system performance, making this a critical service component for licensed oil burner technicians.

This nozzle is intended for use in oil-fired forced-air furnaces, oil boilers, and water heaters that require a Type B solid cone spray pattern at 0.50 GPH. It is a standard replacement item used during annual service tune-ups, combustion efficiency testing, and corrective maintenance when changing firing rates. The 80-degree spray angle is commonly specified for appliances with wider, shorter fireboxes. Always verify the appliance manufacturer's nozzle specification before installation to confirm GPH, angle, and spray pattern type.

Key Features

• Type B solid cone spray pattern for stable, efficient combustion in short combustion chambers
• 0.50 GPH flow rate for precise fuel metering in low-firing-rate applications
• 80-degree spray angle suited to retention-head and pressure-type oil burners with wider fireboxes
• Standard nozzle form factor compatible with common nozzle adapters and oil burner assemblies
• Designed as a direct OEM-style service replacement used during annual oil burner tune-ups

Compatibility

Designed as an OEM-style replacement oil burner nozzle for residential and light commercial oil-fired heating appliances requiring a Type B solid cone nozzle at 0.50 GPH and an 80-degree spray angle. Verify the appliance manufacturer's nozzle specification sheet before installation.

Installation Notes

Oil burner nozzles are typically replaced by licensed oil burner technicians or qualified HVAC service professionals as part of an annual combustion tune-up. Before servicing, shut off the oil supply valve and disconnect electrical power to the burner. Use the correct nozzle wrench to avoid damaging the nozzle adapter or electrode assembly, and inspect the electrodes, igniter, and strainer while the nozzle is removed. After installation, perform a combustion analysis with a calibrated flue gas analyzer to confirm CO2, O2, and smoke number are within the appliance manufacturer's specified range.