Description
The Delavan 2.25 GPH 80° Type B Solid Cone Fuel Nozzle (frequently designated by its blue protective cap) is a professional-grade heating component designed for precision oil burner systems. While primarily a heating and combustion part, it is a critical replacement component for the internal water heating assemblies of hot water pressure washers, industrial boilers, and oil-fired furnaces.
This nozzle atomizes fuel into a uniform, dense spray pattern to ensure highly efficient, clean, and stable combustion.
Key Features
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Type B Solid Cone Pattern: Distributes atomized fuel droplets evenly throughout the entire spray pattern. This guarantees smooth ignition and highly efficient, low-soot heat transfer, particularly in larger commercial burner setups.
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Bi-Metal Construction: Built with a premium brass body for rapid heat dissipation (preventing varnish and fuel residue buildup) and paired with precision-machined stainless steel internal metering components for maximum wear resistance.
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Integrated Sintered Filter: Features a built-in mesh strainer at the base of the nozzle to trap microscopic contaminants and scale before they can clog the orifice, ensuring a consistent flame profile.
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Blue Cap Designation: Standardized color coding by Delavan indicates a “Type B Solid Cone” nozzle configuration for effortless identification in the field.
Technical Specifications
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Brand: Delavan Spray Technologies
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Model/Type: Type B (Solid Cone)
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Flow Rate: 2.25 GPH (Gallons Per Hour)
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Spray Angle: 80° (Degrees)
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Body Material: Brass with Stainless Steel Orifice/Distributor
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Thread Size: Standard 9/16″–24 UNEF
Common Applications
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Hot Water Pressure Washers: Widely used as the heating element fuel nozzle across major commercial pressure washer brands (such as Hotsy, Landa, Karcher, and Hydro Tek) to heat water rapidly for industrial cleaning.
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Oil Burners & Furnaces: Installed in residential and commercial oil heating systems using #1 diesel, #2 diesel, or kerosene.
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Waste Oil Heaters: Frequently utilized in industrial shop heaters and agricultural boilers requiring a reliable, high-volume atomization pattern.





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