Delavan 1.65-90-B Oil Burner Nozzle 1.65 Gph 90 Degree

Product Description

The DELAVAN 1.65-90-B is a solid cone Type B oil burner nozzle rated at 1.65 gallons per hour (GPH) with a 90-degree spray angle and a 100 psi operating pressure. Identified by its blue vial, this nozzle atomizes fuel oil into a uniform droplet pattern across the full cone, supporting smooth ignition and efficient combustion. It is designed for installation in residential and light commercial oil-fired heating equipment. Licensed oil burner technicians and HVAC service professionals are the primary installers for this component.

This nozzle is suited for oil-fired furnaces, boilers, and water heaters that require a solid cone spray pattern at a 1.65 GPH firing rate. The Type B solid cone pattern distributes droplets consistently throughout the complete spray profile at lower flow rates. At flow rates above 8.00 GPH, the pattern becomes progressively more hollow, but at 1.65 GPH the full solid cone remains intact. This makes the nozzle particularly effective in larger burner applications where smooth, stable ignition is critical.

Key Features

• 1.65 GPH flow rate for precise fuel delivery
• 90-degree spray angle for broad combustion coverage
• Solid cone Type B pattern distributes droplets uniformly throughout the spray profile
• Rated for 100 psi operating pressure
• Blue vial color coding allows fast visual identification during service
• Supports smooth ignition and efficient combustion in larger oil burners

Compatibility

Designed as an OEM-style replacement nozzle for oil burner equipment requiring a 1.65 GPH, 90-degree, solid cone Type B firing rate specification.

Installation Notes

Installation should be performed by a licensed oil burner technician or qualified HVAC service professional. Always shut down the burner and allow the system to cool before replacing the nozzle. Use a proper nozzle wrench to avoid damaging the nozzle adapter or electrodes during removal and installation. Follow all applicable local codes and equipment manufacturer specifications when setting electrode gaps and nozzle positioning.

Technical Specifications

• Flow Rate: 1.65 GPH
• Spray Angle: 90 degrees
• Operating Pressure: 100 psi
• Spray Pattern: Solid Cone
• Nozzle Type: Type B
• Vial Color: Blue
• Application: Oil Burner

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 1.65-90-B