Monarch Oil nozzle 0986726

The Monarch Oil nozzle 0986726 is a high-pressure oil nozzle with a flow rate of 5.5 gallons per hour and a spray angle of 60 degrees. It features a hollow spray pattern (HO) and is designed for use with oil having an operating viscosity of 70 SSU (approximately 13 centistokes). This nozzle atomizes fuel into a fine spray to ensure complete and stable combustion in oil-fired burners. It is a precision consumable that must match the burner's specifications for optimal performance.

When selecting a replacement oil nozzle of this type, verify that the flow rate (in GPH or kg/h at the reference pressure), spray angle (typically 30-80 degrees), and spray pattern (hollow, solid, or semi-solid) match the original part exactly. The nozzle thread and the pump pressure setting also affect performance. Install the nozzle into the burner's blast tube, ensuring the ignition spark electrodes are correctly positioned relative to the spray cone.

Failure of oil nozzles of this kind can lead to sooting, pulsation, or unstable ignition if the spray angle, flow rate, or pattern are incorrect. Carbon build-up or excessive flue gas temperatures may occur, potentially causing flame failure. Regular inspection and replacement at the manufacturer's recommended interval are necessary to prevent these issues.