You will find information on their use and recommendations for which products the airless nozzles can spray. This data sheet can be compared to the package leaflet of medicine. Modern materials now contain instructions for the compatible Airless nozzle sizes, and each manufacturer has a table with technical specifications for their particular airless nozzle product range. Choosing the right airless nozzle depends on the paint or material you are using – first check the data sheet. When I have a particularly fine material, I would need to use a smaller nozzle, with a (bore) hole of 0.009″. For example, 0.015 inches, which corresponds to 0.38 mm.
When spraying interior emulsion paint, I use the 515 nozzle, since I need a larger diameter to do so. tip size 0.051” or 1.2954 mm To sum it up: For example a 0.019″ hole is equivalent to a 0.048 cm hole, roughly half a millimetre. To convert inches to centimetres, multiply by 2.5 times the particular number. In this case, 15 stands for 0.015 inches. This indicates the diameter of the hole through which the material is sprayed. Now for the second two… The following two numbers (5 15) We have already deciphered the first digit of this 3 digit number. For example, the airless nozzle numbered 211.Ī combination of three numbers appears on the head of the airless nozzle. In this case, we would choose an airless nozzlewith angle of 20 degrees. If I want to paint a big area, for example a wall, then a spray angle as wide as possible is preferable, with which it can cover a larger surface.įor spraying in more detail, for example beams or window frames, a nozzle which allows for more accurate atomization is preferable. This means that for our above example, a 515 airless nozzle will produce a spray pattern fan width of 25cm (5 x 5 = 25). Take that same number in front and multiplying by 5, will give you the fan width when the spray gun is held perpendicularly, 25cm from the surface. To be precise the angle is the spread at which material is expelled through the hole with this angle of atomization. To calculate this angle simply put a zero in front of the digit, so for 5 we have 50 degrees, 4 stands for 40 degrees, 3 for 30 degrees, and so on and so on. The first number 5 indicates the opening angle with which the airless spray gun will spray the material.
Nozzle Spray Angle 211, 317, 413 and 515 The number 5 in front (515 )
The 3-digit number (5-1-5) tells you the hole size in inches, the fan width and the spray angle, it can deciphered as follows: But what does the 515 number mean? Let’s find it out… Understanding the Airless nozzle number These machines are not suitable for painting facades, or applying mastics or roof coating, because they lack sufficient power. That means it is suitable for lacquers and interior emulsion paint.
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