The metal chemical etching has the function of removing the solid particulate that is in suspension in the compressed air. And assisting in the removal of the condensate that is in the liquid phase. The solid particulate will retain according to the particle size of the filter element. The liquid phase condensate removes by a mechanical separation process.
Compressed air entering through connection “P” in the air filters moves against the upper deflector “2”, which has the shape of a helix. Moreover, it promotes a rotational movement in the compressed air. With this movement, solid particles, and condensed water. Also, it has mass thrown, by the action of centrifugal force, against the wall of the “6” cup, promoting an initial and mechanical separation.
The “5” lower deflector, in addition to fixing the metal chemical etching element in position. It prevents this compressed air with a rotating movement inside the cup.
After this first separation, the compressed air flow meets filtering element “3” which will retain the solid particulate, only the solid. Moreover, the filtered air goes to connection “A”. Water that is, at this moment, in the form of an aerosol or the form of steam, the filtering element has no retention capacity.
The air filter can be provided with different types of drain:
Firstly, this drain model requires the volume of condensate to be constantly monitored. Second, so that the condensate does not exceed the maximum level and requires operator intervention to drain. metal chemical etching have different constructive characteristics and agree with each manufacturer.
In this model, the volume of condensate also needs constant monitoring, so that it does not exceed the maximum level. Moreover, there are two ways of operation for this drain, manual and/or by the absence of pressure inside the cup.
i – Manual, requires the direct intervention of the operator when the condensate reaches the maximum level.
ii – Semi-automatic: metal chemical etching is semi-automatic when the pressure inside the cup is “zero” the drain opens and lets the condensate out by gravity. In addition, the drain closes when the air filter receives compressed air again and the pressure inside it exceeds 1 bar. Moreover, until the minimum pressure is reached, it is normal for a drain to leak for a short period.
It operates by volume of condensate accumulated inside the cup. It has a buoy that, as the condensate deposits inside the cup, floats on this condensate and rises in proportion to the volume of condensate deposited.
The float allows the opening of an internal automatic drain valve, which opens a passage for the metal chemical etching to flow out of the cup. With the absence of condensate inside the cup, the float returns to its position and closes the passage orifice by closing the internal valve.
The filter elements available retain 5 or 20µm, being the standard 20µm line. Currently, filter elements come of micro-porous plastic that allows a more precise control of porosity and especially of the average pore size.
In metal chemical etching , micron, Micron, or Microns? – Micra is the plural of micrometer or micron. The micrometer, micrometer, or micrometer is a unit of length in the International System of Units (SI) having the symbol μm , defined as 1 millionth of a meter (1 × 10 -6 m) and equivalent to a thousandth part of a millimeter.
The term "micron", with the symbol µ (plural: microns or Micra ), common between 1879 and 1967, was officially withdrawn by the International Bureau of Weights and Measures (BIPM) in 1968, with the symbol µ to exclusively designate the prefix micro (which means 1×10 -6 ) of the units of the International System of Units.
Therefore, the use of the old name metal chemical etching , although it remains especially among those whose official language is English, is not recommended, just as it is incorrect to use the Greek letter µ alone to refer to the micrometer.
White – 20µm and Yellow – 5µm
The saturation of the filtering element of the air filter is not easy to see always, which is noticeable in the loss of efficiency, speed of displacement of the actuators.
IMPORTANT – trying to recover the filtering element with solvents causes irreversible damage to the element, further worsening the equipment's performance.
1 – To change the filter element, depressurize the air filter, turn the cap counterclockwise as indicated below
2 – Pull the cup of metal chemical etching as indicated and then remove the lower deflector. The filter element is ready to be removed.
3 – Be careful with the position of the upper deflector and the sealing “O” ring.
4 – To reassemble, redo the operation in reverse order.
5 – To tighten the cup, do not use tools. Tightening should only be manual until you notice that contact has occurred with the sealing ring, which is between the body and the top edge of the cup.
Take the opportunity to clean the cup, respecting the compatibility characteristics of the cup material. If in doubt, consult the manufacturer on how to proceed.
There is a common and application error in metal chemical etching . We are talking about an air filter and not a condensate remover, water. Filters design to retain solid particles and a part of the condensate.
