Description

The Delavan 1.75 GPH 80° Type A Hollow Cone Fuel Nozzle (identified by its red protective cap) is a professional-grade heating and combustion component. It serves as a vital replacement part for the burner assemblies of hot water pressure washers, commercial boilers, and oil furnaces, where it atomizes fuel to ensure highly efficient, clean, and stable heat generation.

With a 1.75 GPH flow rate and a standard 80° spray angle, this nozzle provides a balanced, medium-capacity thermal output, making it one of the most widely used configurations for commercial heating systems that utilize a hollow cone flame profile.

Key Features

• 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.

• 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 on the chamber walls.

• Premium Bi-Metal Construction: Features a heavy-duty brass body for rapid heat dissipation (preventing fuel varnishing and residue buildup) combined with a precision-machined stainless steel internal metering section for maximum wear resistance.

• 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 a consistent flame profile.

• Color-Coded Red Cap: Standardized color coding by Delavan indicates a “Type A Hollow Cone” nozzle configuration, allowing technicians to quickly identify the correct part during routine maintenance.

Technical Specifications

• Brand: Delavan Spray Technologies

• Model/Type: Type A (Hollow Cone)

• Flow Rate: 1.75 GPH (Gallons Per Hour) at standard operating pressure

• Spray Angle: 80° (Degrees)

• Materials: Brass body with Stainless Steel Orifice/Distributor

• Thread Size: Standard 9/16″–24 UNEF

Common Applications

• Hot Water Pressure Washers: Widely utilized in commercial hot water pressure washers (such as units from Landa, Hotsy, Karcher, or Hydro Tek) that require a hollow-cone burner configuration to efficiently heat water flows for cutting through grease, oil, and grime.

• Oil Burners & Furnaces: Installed in residential and commercial heating systems running on standard heating oils, #1 diesel, #2 diesel, or kerosene.

• Boilers & Water Heaters: Used in facility, agricultural, and industrial heaters requiring a reliable, consistent fuel atomization pattern.