Monarch-3.00GPH- und 60R-Düse

This is an oil nozzle from Monarch. Parts of this type are precision consumable components that atomise fuel oil into a fine spray cone, enabling complete combustion in the burner. The nozzle sits at the end of the oil gun and works with the oil pump and solenoid valve to deliver a metered fuel flow. The spray angle and pattern determine how the flame positions itself in the combustion head. Selection for a replacement is based on the flow rating (in USGPH or kg/h at the reference pressure), the spray angle, and the spray pattern (hollow, solid, or semi-solid). All three must match the burner data plate. A nozzle with the correct flow but wrong pattern can cause sooting, pulsation, or unstable ignition. This article carries the designation 3.00 GPH, 60R – meaning a flow of 3.00 USGPH and a spray angle of 60 degrees, with the pattern identified by the code R. The exact meaning of that pattern code should be confirmed with the burner manufacturer’s specification. When replacing a nozzle of this type, always verify that the flow rate, angle, and pattern are identical to the original part. Even a small deviation can affect flame shape and combustion quality. The nozzle is a threaded part – check the thread size against the burner oil gun before installation.