What is a Delavan nozzle?
Del-O-Flo® nozzles are low-capacity nozzles designed to minimize the plugging problems associated with very low flow rates. “Particulates in the oil tend to be more of a problem in the low flow applications,” says Jeff Stembridge, Delavan Design Engineer.
What is the difference between A and B oil burner nozzle?
The difference between an A nozzle and a B oil burner nozzle is that the B produces a solid rather than hollow core spray pattern.
What is nozzle in boiler?
Nozzles are Used in fluid bed combustion boilers. These are manufactured in various chemical compositions to suit the different fuel’s used in the boilers. Variety of air hole combination’s are available.
What are the three numbers on an oil nozzle?
On oil nozzles, the first number is gallons of oil per hour at 100psi. The second number is the apex angle (30° to 90° arc) of the oil spray cone. The letters designate the fill of the spray cone: A or H = hollow, B or ES = solid, SS = semi-solid, W = multipurpose.
Can you clean a oil burner nozzle?
Drop the nozzle into the container filled with kerosene. The nozzle itself will need to set for about a half an hour to make sure to get all of the soot and debris off of it. Once you have taken the nozzle out of the kerosene get out your rag and wipe it clean.
What do the letters mean on a oil burner nozzle?
Patterns are designated as solid (B), hollow (A), and semi-solid (W). A solid nozzle indicates the vaporized oil is distributed evenly throughout the entire spray pattern. A hollow nozzle distributes more of the oil to the outer ring of the pattern, and a semi-solid is neither.
What was the purpose of the Delavan spray nozzles?
The Delavan Swirl-Air range of spray nozzles, based on aerospace technology and developed within our Gas Turbine Division was designed to maximize hydraulic and pneumatic energy to atomize liquids at relatively low pressures.
Who is the world leader in oil burner nozzles?
Delavan Spray Technologies Oil Heating Division is a worldwide leader in spray nozzles for combustion applications from domestic heating to commercial boilers. For over 60 years, Delavan has been unique in the oil heating industry, developing training materials and programs to educate the oil heating service technician.
How many cycles does a Delavan oil burner nozzle cycle?
The Delavan ProTek“Nozzle System has been thoroughly tested. In the tests, approximately seven years of “on/off” cycle operation simulation in the labo- ratory with no failures. A total of 107,000 cycles were recorded. After the first 11,350 cycles, the cut-on pres- sures shifted upward an average of 3.0 PSI.
What kind of test instrument does Delavan use?
Delavan’s inspectors have the latest test instruments such as this video projection microscope, here being used to inspect the orifice dimension on the face of the nozzle. Delavan has been designing and manufacturing nozzles for oil heating industry for over 60 years.
https://www.youtube.com/watch?v=py6osi-vIeE