Industrial Combustion Nozzles FOR INDUSTRIAL AND SPECIAL COMBUSTION APPLICATIONS Delavan, as a world leader in nozzle technology, offers a unique variety of products to meet the requirements of domestic and industrial combustion. ...
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VARIFLO - RETURN FLOW NOZZLES Pressure atomizing nozzles for good atomization over a wide flow range. Permits variable burner outputs based on by-pass pressure Wider spray angles at lower flow rates Less subject to clogging ...
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SNA-SIPHON TYPE AIR ATOMIZING NOZZLES for extremely fine spray particle size at low air pressures Permits good combustion with medium and heavy oils Produces a solid cone spray with extremely fine particle size at low air pressures Clog free operation of low volume due to large inside passages and orifice ...
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AIRO - AIR ATOMIZING NOZZLES For good atomization of both light and heavy oils at higher flow rates. Covers a wide range of throughputs from 10.00 GPH (32 kg./h up to 200.00 GPH (720 kg./h) ...
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SWIRL AIR - AIR ATOMIZING NOZZLES For maximum use of input hydraulic and pneumatic energy to atomize fuels at low pressures. Delavan's two-fluid Swirl-Air nozzle is designed to make maximum use of input hydraulic and pneumatic energy to atomize fuels at low pressures. In combustion applications it can produce fine atomization at flow rates up to 300 gph.   ...
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Delavan Precision Oil Burner Nozzles A Variety of Nozzles that suits every application HOLLOW-CONE Type A -nozzles are mainly used on burners with a hollow cone air pattern and for through puts 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 -nozzles produce a spray that distributes droplets fairly uniformly throughout the complete pattern. The spray pattern becomes progressively more hollow at higher flow rates, particulary above...
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Nozzle Interchange Replacing a nozzle of one make with another sometimes presents problems. This is partly due to unique design differences among the various makes, plus the fact that the nozzle manufacturers use different methods for evaluating spray angles, patterns and spray quality. In many cases, nozzles with similar patterns and spray angles are directly interchangeable. However, there are other cases where nozzles that would seem to be equivalent really are not. When this happens it is best to ask the burner manufacturer for a recommendation. Otherwise, it is a matter...
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Burner/Nozzle Selection Proper nozzle selection is a subject of great importance because the performance of the nozzle is so directly related to the overall performance of the burner. The wrong choice of flow rate, spray angle or spray pattern for a given burner air pattern can result in improper firing. To match a nozzle to a burner takes field-service experience, or trial-and-error, or a good foundation of understanding angles, rates and patterns. Refer to Delavan's service technicians guide #884, "A Total Look at Oil Burner...
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Nozzle Ratings And Testing Every nozzle is spray tested for flow rate, spray angle and spray quality. Our nozzles are flow rated at 100 psi. Test conditions include: fuel gravity within a total spread of 1-1/2 0 API . . . viscosity within ± .04 centistoke (.03 SSU) . . .pressure at 100 psi . . . fuel temperature at 80 0 F, ± 2 0 F . . . an air-conditioned test area maintained at a temperature spread of 4 0 F or less . ....
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Delavan Precision Oil Burner Nozzles A Variety of Nozzles that suits every application HOLLOW-CONE Type A -nozzles are mainly used on burners with a hollow cone air pattern and for through puts 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 -nozzles produce a spray that distributes droplets fairly uniformly throughout the complete pattern. The spray pattern becomes progressively more hollow at higher flow rates, particulary above...
[ Read More ]

Nozzle Interchange Replacing a nozzle of one make with another sometimes presents problems. This is partly due to unique design differences among the various makes, plus the fact that the nozzle manufacturers use different methods for evaluating spray angles, patterns and spray quality. In many cases, nozzles with similar patterns and spray angles are directly interchangeable. However, there are other cases where nozzles that would seem to be equivalent really are not. When this happens it is best to ask the burner manufacturer for a recommendation. Otherwise, it is a matter...
[ Read More ]

Burner/Nozzle Selection Proper nozzle selection is a subject of great importance because the performance of the nozzle is so directly related to the overall performance of the burner. The wrong choice of flow rate, spray angle or spray pattern for a given burner air pattern can result in improper firing. To match a nozzle to a burner takes field-service experience, or trial-and-error, or a good foundation of understanding angles, rates and patterns. Refer to Delavan's service technicians guide #884, "A Total Look at Oil Burner...
[ Read More ]

Nozzle Ratings And Testing Every nozzle is spray tested for flow rate, spray angle and spray quality. Our nozzles are flow rated at 100 psi. Test conditions include: fuel gravity within a total spread of 1-1/2 0 API . . . viscosity within ± .04 centistoke (.03 SSU) . . .pressure at 100 psi . . . fuel temperature at 80 0 F, ± 2 0 F . . . an air-conditioned test area maintained at a temperature spread of 4 0 F or less . ....
[ Read More ]