Delavan 1.75-80-a 1.75 Gph 80 Degree Hollow Cone Type a Oil Burner Nozzle

Product Description

The Delavan 1.75-80-a is a hollow cone Type A oil burner nozzle designed for residential heating applications. It delivers a flow rate of 1.75 gallons per hour at a standard operating pressure of 100 PSI. The spray angle is 80 degrees, making it well suited for burners that require a hollow cone air pattern. This nozzle is a direct-fit replacement for technicians servicing oil-fired residential furnaces, boilers, and water heaters where precise fuel atomization is critical to system performance and efficiency. The body is constructed from brass, and the orifice disc is made from steel, giving this nozzle solid durability under repeated thermal cycling and continuous operation. A sintered filter is integrated into the nozzle assembly to help trap debris and protect the orifice from clogging, which supports consistent spray quality over time. Hollow cone nozzles concentrate droplet distribution on the outer edge of the spray pattern. This design promotes reliable ignition and low-noise combustion, which is especially important in residential settings where quiet, stable burner operation is expected. The Type A designation refers to the specific hollow cone spray pattern, which is commonly matched to burners with a corresponding hollow cone air pattern and is rated for throughputs up to 10 gallons per hour. HVAC technicians and oil burner service professionals rely on Delavan nozzles as an industry standard for fuel oil atomization. This nozzle meets ISO 9001 quality standards, confirming consistent manufacturing tolerances and reliable field performance. Proper nozzle selection by flow rate and spray angle is essential for maintaining combustion efficiency, reducing soot buildup, and meeting emissions targets in oil-fired heating systems.

• Hollow cone Type A spray pattern concentrates droplets at the outer edge of the cone for stable ignition and quiet combustion
• Brass body and steel orifice disc construction provides durability through extended heating season use
• Integrated sintered filter helps protect the orifice from debris and maintain consistent atomization

Product Highlights

The Delavan 1.75-80-a delivers reliable fuel atomization at 1.75 GPH and an 80-degree hollow cone spray angle, making it a dependable replacement nozzle for residential oil burner service work. It is built to ISO 9001 standards with a brass body and sintered filter for long-term performance.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 1.75-80-a

Technical Specifications

• Nozzle Type: Type A, Hollow Cone
• Flow Rate: 1.75 GPH
• Spray Angle: 80 Degree
• Pressure Rating: 100 PSI
• Material: Brass Body, Steel Orifice Disc
• Filter Type: Sintered
• Application: Residential
• Applicable Standard: ISO 9001