INCHES,
CENTIMETRES, MILLMETRES, MESH AND MICRONS.
The average brown human hair is 70
micron. Judging by the number of farmers who confuse mesh sizes with
microns I thought it best to shed some light on the matter.
I think
if you were to ask most people to show you an inch using their thumb
and forefinger they would have a pretty good idea. I'm not too sure
about 25 mm!
1" = 25.4 mm or 2.54 cm. 1mm =
1'000 micron.
MESH size refers to the number of
openings in a linear inch of mesh. You have to consider the
thickness of the wire used in the mesh. There is a difference
between commercial or market grade and mill grade but that is not
important at this stage. Using the US standard mesh size, here are
the common mesh sizes and their micron and mm equivalents.
| MESH - No. of openings | MILLIMETRES | MICRONS |
| 16 GREY | 1.180 | 1180 |
| 30 YELLOW | 0.595 | 595 |
| 50 RED | 0.300 | 300 |
| 80 BLUE | 0.177 | 177 |
| 100 GREEN | 0.149 | 149 |
| 120 BROWN | 0.125 | 125 |
| 200 ORANGE | 0.074 | 74 |
When looking under the nozzle section
in the catalogue note that the appropriate filter mesh size in
specified in parenthesis under each nozzle-tip. If not specified
then no filter is required.
DO NOT USE A FILTER WITH A FINER MESH
SIZE OTHER THAN THAT SPECIFIED AS IT WILL BLOCK UP AND DRASTICALLY
REDUCE THE FLOW RATE.
When using Disc and Core spray-tips
use the correct SLOTTED FILTER.
chemicon@multispray.com
Tel Intl: +27 83 289 0327
Tel Natl: 083 289 0327
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