Delavan 0.75-90-A Oil Burner Nozzle 0.75 Gph 90 Degree

Product Description

The DELAVAN 0.75-90-A is a hollow cone oil burner nozzle rated at 0.75 gallons per hour (GPH) with a 90-degree spray angle, designed to operate at 100 psi. It atomizes fuel oil into a fine, evenly distributed spray pattern concentrated at the outer edge of the cone, promoting stable ignition and low-noise combustion. The Type A hollow cone design is engineered for oil burners with a hollow cone air pattern and is suitable for fuel throughputs up to 2.00 GPH. Installation is performed by licensed oil burner technicians as part of routine annual service or combustion system repair.

The 0.75-90-A is used in residential and light commercial oil-fired heating systems equipped with pressure-atomizing gun-type burners. The hollow cone spray pattern is matched to burners that produce a corresponding hollow cone air pattern, ensuring proper fuel-air mixing at the combustion head. This nozzle is appropriate for systems requiring a 0.75 GPH firing rate at standard operating pressure. The red vial identification simplifies nozzle selection and verification during service calls.

Key Features

• Hollow cone Type A spray pattern concentrates droplets at the outer edge of the cone for stable ignition
• 0.75 GPH flow rate at 100 psi operating pressure
• 90-degree spray angle suited to hollow cone air pattern burners
• Compatible with fuel throughputs up to 2.00 GPH in the hollow cone nozzle category
• Red vial color coding for quick identification and replacement verification
• Engineered for low-noise combustion characteristics

Compatibility

Designed as an OEM-style replacement nozzle for oil-fired pressure-atomizing gun burners that require a hollow cone air pattern and a 0.75 GPH firing rate at 90 degrees.

Installation Notes

Oil burner nozzles are serviced by qualified oil heat technicians and should be replaced during annual tune-up or whenever combustion analysis indicates degraded performance. Always shut down the burner and allow the system to cool before removing the nozzle assembly. Use a proper nozzle wrench to avoid damaging the nozzle adapter or electrodes. Verify firing rate, spray angle, and spray pattern type against the burner manufacturer specifications before installing a replacement nozzle.

Technical Specifications

• Flow Rate: 0.75 GPH
• Spray Angle: 90 degrees
• Spray Pattern: Hollow Cone (Type A)
• Operating Pressure: 100 psi
• Vial Color: Red
• Application: Oil Burner

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 0.75-90-A