Delavan 1.75-70-a 1.75 Gph 70 Degree Type a Hollow Cone Oil Burner Nozzle

Product Description

The Delavan 1.75-70-a is a Type A Hollow Cone oil burner nozzle designed for residential heating applications. It delivers a flow rate of 1.75 gallons per hour at a spray angle of 70 degrees. The nozzle features a brass body and a steel orifice disc, giving it the durability needed for reliable, long-term use in oil-fired heating systems. It is rated for operation at 100 PSI and a temperature of 80 degrees Fahrenheit, making it well suited for standard residential oil burner setups.

Hollow Cone Type A nozzles like this one are engineered for burners that use a hollow cone air pattern. The droplet distribution is concentrated on the outer edge of the spray cone. This design promotes good ignition and low-noise combustion, which are critical performance factors for residential oil heating equipment. The nozzle handles throughputs up to 10.00 gallons per hour, so the 1.75 GPH output sits well within the optimal operating range for this nozzle type.

HVAC technicians and oil burner service professionals rely on Delavan nozzles for routine tune-ups, seasonal maintenance, and component replacement. Selecting the correct spray angle and flow rate is essential for efficient fuel combustion and proper heat exchanger performance. The 70-degree spray angle on this nozzle is a common specification for a wide range of residential oil furnaces and boilers. Swapping a worn or clogged nozzle for a fresh Delavan 1.75-70-a helps restore peak efficiency, reduces soot buildup, and keeps the combustion chamber operating cleanly. This nozzle meets ISO 9001 quality standards, confirming consistent dimensional accuracy and reliable atomization performance across every unit produced.

• Type A Hollow Cone design concentrates droplets on the outer edge of the spray cone for clean, low-noise ignition
• Brass body and steel orifice disc construction provide corrosion resistance and long service life in residential oil burner systems
• 1.75 GPH flow rate at 70-degree spray angle suits a wide range of standard residential oil furnaces and boilers

Product Highlights

The Delavan 1.75-70-a delivers precise fuel atomization at 1.75 GPH with a 70-degree hollow cone spray pattern, making it a dependable replacement nozzle for residential oil heating systems. Its ISO 9001-compliant construction ensures consistent performance and reliable combustion quality.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 1.75-70-a

Technical Specifications

• Nozzle Type: Type A, Hollow Cone
• Flow Rate: 1.75 GPH
• Spray Angle: 70 Degrees
• Pressure Rating: 100 PSI
• Temperature Rating: 80 Degrees Fahrenheit
• Body Material: Brass
• Orifice Disc Material: Steel
• Application: Residential
• Applicable Standard: ISO 9001