Description
The 2.75 GPH 80° Type A Hollow Cone Fuel Nozzle (typically identified by a red protective cap) is a high-capacity, professional-grade heating and combustion component. It serves as a vital replacement part for the burner assemblies of heavy-duty hot water pressure washers, commercial boilers, and large oil furnaces, where it atomizes fuel to ensure highly efficient, clean, and stable heat generation.
With a substantial 2.75 GPH flow rate and a standard 80° spray angle, this nozzle delivers high thermal output into medium-to-large combustion chambers designed specifically around a hollow cone flame profile.
Key Features
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Type A Hollow Cone Pattern: Distributes atomized fuel droplets primarily around the outside of the spray cone, leaving a hollow center. This configuration matches specific burner air patterns, offering smooth ignition, excellent flame stability, and reduced smoke or soot production even at higher fuel capacities.
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80° Spray Angle: Provides a balanced flame profile that optimizes heat distribution within standard-sized combustion chambers and heating coils, ensuring maximum heat transfer to the water or air without impinging directly on the chamber walls.
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Premium Bi-Metal Construction: Features a heavy-duty brass body for rapid heat dissipation (preventing fuel varnishing and internal clogs) 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 impurities before they can reach the orifice, maintaining an uninterrupted flame profile.
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Color-Coded Red Cap: Standardized color coding indicates a “Type A Hollow Cone” nozzle configuration, allowing technicians to quickly identify the correct pattern type during routine maintenance.
Technical Specifications
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Model/Type: Type A (Hollow Cone)
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Flow Rate: 2.75 GPH (Gallons Per Hour) at standard operating 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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Heavy-Duty Hot Water Pressure Washers: Utilized in high-capacity industrial pressure washers that require a hollow-cone burner configuration to rapidly heat high-volume water flows for heavy grease, oil, and industrial grime removal.
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Commercial Boilers & Water Heaters: Installed in large facility heating systems, agricultural water heaters, and manufacturing boilers running on standard heating oils, #1 diesel, #2 diesel, or kerosene.
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Large-Scale Oil Furnaces: Used in commercial or industrial space heating applications requiring high-capacity fuel atomization with an intermediate, balanced spray width.





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