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Nozzles are generally rated at 100 psi, and that is the pressure that most residential-style oil burners run at, but not all. It also has an 80-degree spray angle. That is the angle at which the spray comes out of the nozzle. The smaller the angle, the narrower the spray pattern.
What are the three ratings on an oil burner nozzle?
Three Basic Oil Burner Nozzle Parameters: Metering Rate, Spray Angle, Spray Pattern. The metering rate is expressed in gph and is the capacity of the oil burner nozzle to deliver heating oil or the capacity of the oil burner to deliver BTUs.
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. B nozzles are more-often used on larger or industrial oil burners.
What does GPH mean on the nozzle?
GPH. Gallons per hour (gallons per hour: 1 gallon = 3.7853 l). This size unit is always based on water flow. See the table for a given nozzle to determine the pressure of her flow. SPRAY ANGLE.
Which type of spray pattern is most often used on nozzles rated below 1.0 gph?
Generally, hollow cone nozzles are used on low firing rate burners, particularly those firing less than 1 GPH. This is an important advantage in fractional gallonage nozzles, such as those used in mobile home furnaces, where cold, high viscosity oil may cause a reduction in spray angle and increases in droplet size.
What is a solid oil nozzle?
Product Description. Type B or solid nozzles produce a spray that distributes droplets fairly uniformly throughout the complete pattern. The spray pattern becomes progressively hollower at higher flow rates. Solid nozzles provide smooth ignition and efficient combustion, particularly in larger burners.
Does the oil pump have to be primed after changing the nozzle?
Oil Furnace Filter If changing the filter and the seal does not allow the pump to prime, the nozzle or the line itself may be plugged, and a certified professional must pressurize the line and clear both the fuel line and the nozzle.
What is the difference between a hollow core and a solid core oil nozzle?
Hollow cone nozzles generally have more stable spray angles and patterns under adverse conditions than solid cone nozzles of the same flow rate. This is an important advantage in fractional gallonage nozzles where high viscosity fuel may cause a reduction in spray angle and an increase in droplet size.
Are B nozzles solid?
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. Provides smooth ignition and efficient combustion, particularly in larger burners.
Can you clean oil burner nozzles?
Remove the nozzle from the fuel and wipe it clean with a lint-free cloth. Unscrew the filter at the end of the nozzle and take out the brass screw pin.
What is the typical oil pressure for a gun type oil burner?
A residential gun-type burner normally requires a oil 80 – 130 psi oil pressure.
What is nozzle Inch hour?
For conventional sprayheads, precipitation rates typically range from 1.3 inches to 2 inches per hour. For gear drive rotors, precipitation rates typically range from 0.4 inch to 1 inch per hour. For rotary nozzles, precipitation rates typically range from 0.4 inch to 0.6 inch per hour.
What creates the swirling of the oil in the nozzle?
Oil passes through the strainer, then sent through a set of slots cut at an angle into the swirl chamber. The angle creates a high velocity swirl, creates a low pressure area in center of swirl. The pressure differential moves the oil out through the orifice in a hallow tube shape.
What do the numbers mean on an oil burner nozzle?
The numbers on the nozzle tell us the specific rating of the nozzle, the spray pattern angle, and the spray pattern type. The nozzle listing here has a . 75-GPM rating. That means the nozzle will spray . 75 gallons per hour of fuel oil at 100 psi.
What is aw oil burner nozzle?
“W” – Universal nozzle – Orange caps The “W” – Universal nozzle produces a spray pattern that is neither. truly hollow nor truly solid. In the lower flow rates the spray. pattern tends to be more solid. Conversely, the higher the flow.
Which of the following is part of an oil burner nozzle?
Name the six parts of an oil burner nozzle. Answer :Orifice,Orifice Disc,Body,Retainer,Filter & Distributor.
How many grades of fuel oil are there?
In the United States there are six grades of fuel oil, numbered 1 through 6. The lower the number, the lighter the fuel is, with lower boiling point, viscosity and energy content per gallon.
What is a boiler nozzle?
Oil burner nozzles are the working end of the burner assembly. Usually, most parts of the furnace and the nozzle are only checked when there’s a need to service it or carry out repair work, which in most cases is once or twice a year.
How long do boiler electrodes last?
Every 5 years boilers will normally have worn electrodes, and typically issues with automatic air vents or sensor drift may have occurred.
Why do I have to keep bleeding my oil furnace?
Typically, the reason for bleeding the furnace has to do with fuel levels: If you let the oil completely run out, that’s when the furnace may need extra help starting up again. To prevent this problem, refill the tank before the oil gets extremely low. You’ll also keep yourself from freezing when the furnace shuts off.
Does an oil furnace need a return line?
Things You’ll Need The two-line fuel system on an oil-fired furnace consists of a supply line and a return line. The supply line delivers fuel oil from the holding tank to the fuel pump. The return line sends excess oil not used by the furnace back to the oil tank.
