Delavan 00250-30B7 Oil Burner Nozzle 2.5 Gph 30 Degree

Product Description

The DELAVAN 00250-30B7 is a solid-cone Type B oil burner nozzle rated at 2.5 GPH with a 30-degree spray angle. It is designed for residential oil-fired heating systems where consistent atomization and reliable ignition are required. The solid-cone spray pattern distributes droplets uniformly across the full spray pattern at standard flow rates. The body is constructed from brass with a steel orifice disc, and a Monel strainer filters fuel before it reaches the orifice. At flow rates above 8.00 GPH the pattern becomes progressively more hollow, but at 2.5 GPH this nozzle delivers stable, efficient combustion suited to smaller residential burner heads. Licensed oil burner technicians and HVAC service pros handle installation and replacement.

This nozzle is intended for residential oil burner applications operating at a rated pressure of 100 psi and a temperature rating of 80 degrees F. It is commonly installed in forced-air oil furnaces and oil boilers during annual tune-ups or when combustion analysis indicates an atomization issue. The 30-degree spray angle suits firebox geometries that require a tighter, more concentrated flame pattern. Proper nozzle selection by GPH, spray angle, and cone type is critical to achieving correct CO2 and smoke number readings during combustion analysis.

Key Features

• Solid-cone Type B spray pattern distributes droplets uniformly throughout the full pattern at 2.5 GPH
• Brass body with steel orifice disc for durability in continuous fuel-oil service
• Monel strainer filters incoming fuel to protect the orifice from particulate contamination
• 30-degree spray angle suited to tighter firebox geometries in residential burners
• Rated at 100 psi operating pressure and 80 degrees F temperature rating
• Manufactured under ISO 9001 quality standards

Compatibility

Designed as an OEM-style replacement nozzle for residential oil burner systems requiring a 2.5 GPH, 30-degree, solid-cone Type B nozzle at 100 psi operating pressure.

Installation Notes

Oil burner nozzle replacement is performed by licensed oil burner technicians or qualified HVAC service professionals. Always shut off power to the burner and close the fuel supply valve before removing the nozzle assembly. Use a proper nozzle wrench to avoid damaging the nozzle adapter or electrode assembly, and verify electrode gap settings have not shifted during service. Dispose of the used nozzle properly and confirm combustion performance with a flue gas analyzer after startup.

Technical Specifications

• Product Type: Oil Burner Nozzle
• Cone Type: Type B, Solid Cone
• Flow Rate: 2.5 GPH
• Spray Angle: 30 degrees
• Pressure Rating: 100 psi
• Temperature Rating: 80 degrees F
• Body Material: Brass
• Orifice Disc Material: Steel
• Filter Type: Monel Strainer
• Application: Residential
• Applicable Standard: ISO 9001

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 00250-30B7