Delavan 00055-90b1 Oil Burner Nozzle 0.55 Gph 90 Degree

Product Description

The DELAVAN 00055-90b1 is a Type B solid-cone oil burner nozzle rated at 0.55 GPH with a 90-degree spray angle. It features a brass body and steel orifice disc, rated for operation at 100 psi and up to 80 degrees F. The solid-cone spray pattern distributes droplets uniformly throughout the full pattern, supporting smooth ignition and efficient combustion. This nozzle is installed by HVAC technicians and oil burner service professionals performing maintenance or replacement on residential heating equipment. It is manufactured to ISO 9001 quality standards.

This nozzle is suited for residential oil-fired heating systems where low flow rates and a wide 90-degree spray angle are required. The solid-cone Type B pattern is well matched to larger residential burners where uniform droplet distribution across the full spray cone improves combustion efficiency. At flow rates above 8.00 GPH the solid-cone pattern becomes progressively more hollow, but at the 0.55 GPH rating of this nozzle the pattern remains fully solid and consistent throughout the firing cycle.

Key Features

• Solid-cone Type B spray pattern delivers uniform droplet distribution throughout the full spray cone
• 0.55 GPH flow rate suited for low-input residential oil burners
• 90-degree spray angle for wide pattern coverage in appropriate burner head configurations
• Brass body with steel orifice disc for durability and corrosion resistance
• Sintered filter element integrated into the nozzle assembly
• Manufactured under ISO 9001 quality standards

Compatibility

Designed as an OEM-style replacement nozzle for residential oil-fired burners requiring a 0.55 GPH, 90-degree, solid-cone Type B nozzle at 100 psi operating pressure.

Installation Notes

Oil burner nozzles are replaced by licensed oil burner technicians or qualified HVAC service professionals. Always shut down and lock out the burner and fuel supply before removing the nozzle assembly. Use a proper nozzle wrench to avoid damaging the nozzle body or electrodes during removal and installation. After replacement, verify ignition, combustion quality, and flue gas readings before returning the system to service.