Description
The Delavan 2.50 GPH 80° Type B Solid Cone Fuel Nozzle (identified by its blue protective cap) is a professional-grade heating and combustion component. It is a critical replacement part designed for the burner assemblies of hot water pressure washers, industrial boilers, and oil-fired furnaces, where it atomizes fuel to ensure clean, efficient, and stable combustion.
With a 2.50 GPH flow rate, this nozzle is engineered for higher-output heating coils, delivering more thermal energy to rapidly heat water or air compared to smaller-capacity nozzles.
Key Features
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Type B Solid Cone Pattern: Distributes atomized fuel droplets evenly throughout the entire spray cone. This uniform distribution ensures smooth ignition, stable flame geometry, and highly efficient heat transfer with minimal soot production.
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Premium Bi-Metal Construction: Features a heavy-duty brass body for rapid heat dissipation (which prevents fuel varnishing and residue buildup) combined with a precision-machined stainless steel internal metering section for maximum wear resistance.
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Integrated Sintered Filter: Equipped with a built-in mesh strainer at the base of the nozzle body to capture microscopic sediment, rust, and fuel contaminants before they can reach the orifice, preventing clogs and maintaining a consistent flame profile.
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Color-Coded Blue Cap: Standardized color coding by Delavan indicates a “Type B Solid Cone” nozzle configuration, allowing for quick and accurate identification during routine equipment servicing.
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: 2.50 GPH (Gallons Per Hour) at standard pressure
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Spray Angle: 80° (Degrees)
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Materials: Brass body with Stainless Steel Orifice/Distributor
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Thread Size: Standard 9/16″–24 UNEF
Common Applications
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Commercial Hot Water Pressure Washers: Widely utilized in heavy-duty pressure washers (such as industrial units from Landa, Hotsy, Karcher, or Hydro Tek) to provide the necessary heat output for demanding grease and oil removal.
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Industrial Oil Burners & Furnaces: Installed in commercial heating systems using standard heating oils, #1 diesel, #2 diesel, or kerosene.
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Boilers & Water Heaters: Used in agricultural, automotive, and industrial facility heaters requiring a reliable, high-output fuel atomization pattern.





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