Description

The Delavan 2.25 GPH 90° Type A Hollow Cone Fuel Nozzle (identified by its red protective cap) is a professional-grade heating and combustion component. It serves as a critical 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 2.25 GPH flow rate and a wide 90° spray angle, this nozzle provides a high-capacity thermal output engineered specifically for short, wide, or compact combustion chambers 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 at higher capacities.

• Wide 90° Spray Angle: Provides a shorter, wider flame profile than narrower angles (like 60° or 80°), making it the perfect choice for compact, shallow, or round heating coils and combustion areas where flame impingement on deep walls must be avoided.

• 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.

• 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.

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

Technical Specifications

• Brand: Delavan Spray Technologies

• Model/Type: Type A (Hollow Cone)

• Flow Rate: 2.25 GPH (Gallons Per Hour) at standard operating pressure

• Spray Angle: 90° (Degrees)

• Materials: Brass body with Stainless Steel Orifice/Distributor

• Thread Size: Standard 9/16″–24 UNEF

Common Applications

• Commercial Hot Water Pressure Washers: Utilized in high-capacity pressure washers (such as units from Landa, Hotsy, Karcher, or Hydro Tek) that feature short, wide burner configurations requiring massive heat output to instantly raise water temperatures for heavy grease and grime removal.

• 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.

• Large-Scale Oil Furnaces: Used in commercial or industrial space heating applications requiring high-capacity, wide-angle fuel atomization.