Delavan 00275-45A7 Oil Burner Nozzle 2.75 Gph 45 Degree

Product Description

The DELAVAN 00275-45A7 is a Type A hollow cone oil burner nozzle rated at 2.75 gallons per hour (GPH) with a 45-degree spray angle. Constructed from 100% solid brass, it atomizes fuel oil into a finely distributed hollow cone spray pattern suited to burners with hollow air patterns. This nozzle seats in standard oil burner assemblies found in residential and light commercial forced-air furnaces and hot water boilers. Licensed oil burner technicians select nozzle flow rate, spray angle, and pattern based on heat load, combustion chamber geometry, and burner air pattern to achieve efficient, stable combustion.

This nozzle is designed for use in flame retention and conventional oil burners where a 45-degree hollow cone spray pattern is specified. A 45-degree angle is commonly used in intermediate-length combustion chambers where neither a wide-angle nor a narrow-angle nozzle is appropriate. At 2.75 GPH, this nozzle suits larger residential or small commercial heating systems where higher firing rates are required to meet heat load on design-day conditions. The red identification cap allows quick visual confirmation of nozzle type during service calls.

Key Features

• 2.75 GPH flow rate for higher-output residential and light commercial oil burners
• 45-degree spray angle suited to intermediate combustion chamber geometries
• Hollow cone spray pattern matches burners with hollow air patterns for efficient flame formation
• 100% solid brass construction for durability and resistance to fuel oil corrosion
• Type A nozzle classification for compatibility identification during service
• Red vial cap for fast visual identification in the field

Compatibility

Designed as an OEM-style replacement nozzle for oil-fired forced-air furnaces and hot water boilers that specify a 2.75 GPH, 45-degree, hollow cone Type A nozzle. Confirm burner manufacturer nozzle specifications before installation.

Installation Notes

Oil burner nozzle replacement should be performed by a licensed oil burner technician. Shut down the burner and allow the system to cool before removing the nozzle assembly. Use an appropriately sized nozzle wrench to avoid damage to the nozzle adapter or electrodes. After installation, perform a combustion analysis to verify CO2, draft, and smoke number are within acceptable limits before returning the system to service.

Technical Specifications

• Flow Rate: 2.75 GPH
• Spray Angle: 45 degrees
• Spray Pattern: Hollow Cone
• Nozzle Type: A
• Vial Color: Red
• Material: Solid Brass

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 00275-45A7