Delavan 0.40-70-w 0.40 Gph 70 Degree Type W All Purpose Oil Burner Nozzle

Product Description

The Delavan 0.40-70-w is a Type W All Purpose oil burner nozzle designed for residential heating systems. It delivers a flow rate of 0.40 gallons per hour at a rated pressure of 100 PSI with a 70 degree spray angle. HVAC technicians and oil burner service professionals rely on this nozzle for dependable, consistent fuel atomization across a wide range of burner setups. The brass body and steel orifice disc construction provide durability and resistance to wear under regular operating conditions. A sintered filter is built into the nozzle to help block contaminants from reaching the orifice and disrupting spray quality. The Type W spray pattern sits between a hollow cone and a solid cone. This makes it a flexible, all purpose choice that works with most burner air patterns without requiring a pattern-specific selection. At lower flow rates such as 0.40 GPH, the spray tends to behave more like a hollow cone pattern, which supports cleaner combustion in lower-demand residential applications. This nozzle is rated for use at temperatures up to 80 degrees Fahrenheit and meets ISO 9001 applicable standards, reflecting consistent manufacturing quality. The 0.40-70-w is a common replacement nozzle for residential oil-fired furnaces, boilers, and water heaters. It fits standard Delavan and compatible nozzle adapters found in most residential heating equipment. Proper nozzle selection directly affects combustion efficiency, heat output, and fuel consumption. Using the correct flow rate and spray angle for your specific burner model helps reduce soot buildup, lowers maintenance frequency, and supports efficient operation throughout the heating season.

• Type W All Purpose spray pattern works with hollow cone, solid cone, and mixed-air burner configurations
• Brass body and steel orifice disc construction for long-term durability in oil burner service
• Built-in sintered filter helps protect the orifice from fuel contaminants

Product Highlights

The Delavan 0.40-70-w delivers reliable fuel atomization at 0.40 GPH with a 70 degree spray angle, making it a versatile replacement nozzle for residential oil burner systems operating across varied air patterns.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 0.40-70-w

Technical Specifications

• Product Type: Oil Burner Nozzle
• Spray Type: Type W, All Purpose
• Flow Rate: 0.40 GPH
• Spray Angle: 70 Degree
• Pressure Rating: 100 PSI
• Temperature Rating: 80 Degrees F
• Body Material: Brass
• Orifice Disc Material: Steel
• Filter Type: Sintered
• Application: Residential
• Applicable Standard: ISO 9001