.6590AR - Monarch - Oil Nozzle

The Monarch .65 90 AR Oil Nozzle is part of Monarch’s AR Series, which is known for its special solid cone spray pattern. Here's a detailed breakdown of its specifications and use:

🔧 Product Specifications

• Model: .65 90 AR
• Flow Rate: 0.65 GPH (gallons per hour) at 100 PSI
• Spray Angle: 90°
• Spray Pattern: AR (Special Solid Cone) – designed to produce quiet combustion, especially in flame retention head burners
• Application: Commonly used as a “cure-all” replacement nozzle and increasingly specified in original equipment for residential and light commercial oil burners
• Viscosity Compatibility: Suitable for oils up to 5 cSt, with special variants available for up to 13 cS