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ASCO NUMATICS
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Delta water separators and filters - F901 series

A large amount of Air service equipment can be present downstream of a pneumatic plant. The drawing below shows the required products for filtration and compressed air processing. Move your mouse on the animated parts.

The Delta series is made of premium filters and water separators for applications which require high flows. The standard aluminum end caps on every element, premium manual drain, seals made of FPM, and available 3 micron internal pleated prefilter provide high sturdiness and reliability for your premium filtration.

Content

Water separator
Video
Premium filtration
Range and characteristics

Water separator

Applications

Bulk liquid and solid contamination removal
Downstream from compressor/aftercoolers
Protection for coalescing elements from large liquid loading
Refrigerated compressed air dryers

The water separator is an ideal solution where water contamination is present. Water can damage pneumatic components, degrade your final product, and cause valves and cylinders to stick.
Result : at 6 bar, 96 % of water is removed, 48 % at 3 bar. See the video for show:

A lower disk (image below) allows solid particles and liquids to fall down without rising up. It isolates the bowl-bottom from turbulence.

Premium filtration

Applications

Depending on the filtration type, Delta premium filters are ideal for use in many applications including industrial, process, medical and are perfectly suited for compressor applications.

40 / 25 / 3 µm particulate filters

40, 25 or 3 micron particle removal in "dry" systems
Solid bulk contamination removal
After filter to a desiccant dryer
Protection for coalescing in heavy aerosol applications

Carbon Filter

For Breathable air
For use in the food and pharmaceutical Industry where there is direct contact with the product
Eradicates smells
Removes hydrocarbons

Filter coalescent

0.01, 0.3 and 1 µm 1 µm particle removal in "Dry" systems
Oil concentration removal depending on the filtration rating
Mainline plant filtration
Prefilter to refrigerated air dryer
Paint spraying
Pneumatic tools and instrumentation
Blow molding plastics
Semiconductor packaging
Critical instrumentation

Filtration types

3 types of filtration are available: particulate, coalescing and adsorbing grade filters.
offering you the complete choice for your application

Particulate filter range Particulate filters:

The particulate filter is designed for heavy dirt loading. Large particles such as rust, desiccant dust, and debris will shorten the life of your pneumatic components. Contaminant is generated from desiccant type air dryers, older carbon steel pipes, and from the intake of a compressor.
Why choose a particulate filter?

Only one element and one media: fine sintered particles (nylon or brass)
Basic filtration using

Coalescing filters:

Air flows from the inside to the outside of the element through progressively larger openings in the media. As contamination moves through the element, solid particles are trapped and liquids are formed into large droplets.
As the air exits the element, surface tension holds the liquids and allows them to drain to the bottom.
a coalescing filter?

Used for the finest filtration (frequently used with a prefilter)
Several elements and different layered media : glass, metal, nylons fibers ...
Different textures (slick, woven or "accordion" type)

Adsorbing grade filters:

The adsorbing filter removes oil and larger hydrocarbon vapor from the compressed air stream. Since it only removes vapor, a coalescing element should be used immediately upstream of the adsorbing
filter. Since optimum adsorption occurs at lower temperatures, it is recommended to apply the filter as close to the point-of-use as possible.
Why choose an adsorbing grade filter?