Fuel nozzles found in most hot water pressure washer oil burners
have three main characteristics. The first is the flow rate
, measured in gallons per hour. This can range from .5 gph to typically no more than 6.5 gph. The second is the spray angle
, which can be 30°, 45°, 60°, 70°, 80° or 90°. Lastly, the cone type
is a key characteristic of these nozzles. Type A nozzles have a hollow fuel cone, while type B is a solid cone.HOLLOW-CONE TYPE A
Hollow-Cone Type A nozzles are mainly used on burners with a hollow cone air pattern and for throughputs up to 2.00 gph. The droplet distribution is concentrated on the outside of the cone and results in good ignition and low-noise combustion.SOLID-CONE TYPE B
Solid-Cone Type B nozzles produce a spray that distributes droplets fairly uniformly throughout the complete pattern. The spray pattern becomes progressively more hollow at higher flow rates, particularly above 8.00 gph. Type B nozzles provide smooth ignition and efficient combustion, particularly in larger burners.
Pressure-Washer-Parts.com carries oil burner fuel nozzles from Delavan Spray Technologies
. Delavan has been designing and manufacturing nozzles for the oil heating industry for over 60 years. They are recognized as a worldwide leader in spray nozzles for combustion applications from domestic heating to commercial boilers.