final filter

final filter

[¦fīn·əl ′fil·tər]
(mechanical engineering)

afterfilter, final filter

In an air-conditioning system, a high-efficiency filter located near a terminal unit.
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The final filter solutions will utilize a micro package form factor that is ideal for use in mobile handsets.
The third and final filter layer of the apparatus is KOH filter paper.
As the water exits the system, a final filter removes particulates and bacteria to reach Type I water specifications.
Two single-cartridge filter housings contain a pre- and final filter for the recirculation water that is returning from the bottle rinser and rinser reservoir basin.
He said: "It goes through three filter systems in the hotel before it gets to our final filter here in the basement.
In the author's experience, in many instances pre-filters do not provide beneficial LCC when used with extended surface area MERV11 to 13 final filters. Prefilters have no impact on overall filtration efficiency, which is determined by the final filter, and they increase maintenance costs and energy costs but seldom increase the life of the final filter in most applications.
When the correct pressure is reached, the feed will stop and the membrane plates will be inflated with air, which presses the material in the chamber to the final filter cake.
If you have a main line with no branching, then it is best to install a filter train as you work down to the final filter. Installing one filter at the final process' micron rating may reduce an overall pressure drop, however it also minimizes life and requires frequent change-outs or cleaning of filter elements.
As shown in Figure 4, the final filter provides the mass of particles collected but does not provide information on the particle size distribution for particles smaller than 0.5 [micro]m.
The Mud Dog's four-stage airflow filtration system extends blower life with its large capacity (10 or 16 cubic yard) debris body with ejector plate; twin float balls for liquid shut-off, cyclone separator for effective removal of carryover material from the airstream and pleated element final filter to provide superior protection of the positive displacement blower from fine particulate materials in the airstream.
The unit features a 575-cfm blower, said to be the most powerful in the industry for its size range, and a three-stage filtration system with a Cyclone separator and two-micron washable final filter, which eliminates the draining and cleaning of a full-size bag house with multiple expensive filters.