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  1. HOME
  2. PRODUCTS
  3. AF SERIES

AF SERIES DOWNSTREAM FILTERS

21 – 6475 CFM

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oil free air compressor for textiles
WHY ELGI AIRMATE FILTERS?

Best-in-class ten-year warranty for housing

The common problem with most housing is corrosion. While this corrosion doesn't affect the filter's performance itself, it adds particles of its corroded body (Al or Fe) to the air, thus making it unfit for sensitive applications. With this warranty, customers can have a reliable, pure operation for the entire life of the filter.

Compact and space-saving

High-capacity filters with dual filter housing reduce space consumption and are compact compared to the fabricated filters.

Differential pressure gauge & filter status indicator

Three colored range on indicator helps identify filter element actual condition and plan the maintenance activity efficiently.

In-built service indicator

Helps alert the user for on-time maintenance and service.

Automatic internal float drain

Automatically removes maximum condensate from the system with minimal air loss and saves the element from being soaked, avoiding moisture/ water carryover to the downstream equipment.

High Safety Norms and certification

Filters are CE, AS, CRN, ASME certified and made under ISO quality standards and iuta verification for high performance.

Zero loss drain option

Only the Condensate is dehydrated with an external level sensing drain. There is no air loss (energy saving). Both mechanical and electronic drain options are available with ELGi's Downstream filters.

Wall mounting kit & clamp option

Wall mounting kits are available to easily connect the filters to the wall. The clamp provided attaches two filters easily without any pipes.

HOW DOES A DOWNSTREAM AIR COMPRESSOR FILTER WORK?

Moisture, particle contaminants, microorganisms, and gases are the most variable component of the atmospheric air. When this air gets compressed, the concentration of these elements increases by 6 to 10 times; that’s why other contaminants like oil and metal traces get added during the compression process. Removing these contaminants from the compressed air before being used for any application is an essential task.

According to the International Standard, ISO 8573-1:2010, compressed air contaminants like particles, water, and oil are segregated as per purity classes. In this standard, microorganisms and other gases are not included. As a result, the air purity is indicated as [P, W, O] and is ordered as per the number of particles, water, and oil.

ELGi’s AF downstream filters are used in condensed airlines to stop liquids and solid contaminants from entering air compressors. They stop these contaminants from entering the equipment and causing damage. Our filtration grade removes the wet particle from 1 micron to 0.01 micron, aerosols from 0.1 mg/m3 to 0.003 mg/m3 and provides air quality from (2:-:2) to (1:-:1) based on ISO 8573-1:2010 standards. The working principle for ELGi’s Downstream Air Compressor Filter is explained below :

  • Contaminated compressed air enters the filter through inlet port.
  • Contaminated air is filtered while coming from inside to outside of filter element.
  • Large droplets of condensate are collected by element and drained gravitationally.
  • Collected moisture/water at the bottom of filter bowl is drained out of filter with the help of internal float drain.
  • Filtered cleaner air is sent out of the filter through outlet port.
  • For Carbon filter, the flow of air is opposite i.e. inlet and outlet port would change. The contaminated air flows from outside to inside of the filter element, activated carbon absorbs the oil vapour and odor before passing the air through it.

SCHEMATIC REPRESENTATION

 

af-schematic-image
INTRODUCTION TO ELGI’S AIRMATE DOWNSTREAM FILTERS

Rajshekhar Mahendrakar, DGM-Product Management, ELGi, talks about the importance of removing contaminants from compressed air, different types of filters and how downstream filters can help Plant Managers operate their compressed air system efficiently.

INTERESTED IN OUR
SERVICES & PARTS?

From service plans, service networks to Genuine ELGi parts, explore our vast range of services and parts to find exactly what you need.

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CIN : L29120TZ1960PLC000351
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