AF Series Downstream Filters

WHY ELGi AIRMATE FILTERS?

Best-in-class warranty for housing

The common problem with most housing is corrosion. While this corrosion doesn't affect the air compressor’s filter's performance, 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 fabricated filters.

Differential pressure gauge & filter status indicator

Compressed air filters have three coloured ranges on indicators that help identify the filter element's 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

Air compressor filters are CE, AS, CRN, and ASME certified and made under ISO quality standards for high performance.

Zero-loss drain option

With an external level-sensing drain, only the Condensate is dehydrated. There is no air loss (energy-saving). ELGi's downstream filters offer both mechanical and electronic drain options.

Wall mounting kit & clamp option

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

WHAT ARE THE BENEFITS OF OIL FILTERS?

Air/oil separation is crucial for removing oil aerosols and mist from compressed air, ensuring the air is contamination-free. This process prevents damage to equipment, maintains product quality, and reduces health risks. Oil-free air is essential in industries such as painting, instrumentation, and any application where oil contamination can compromise the final product.

Accessories for Air/Oil Separation

Separator Elements: Specialised components that efficiently separate oil from compressed air.

Condensate Drains: Devices that automatically remove collected oil from the separator.

Pressure Maintenance Valves: Ensure optimal pressure is maintained for effective oil separation.

Monitoring Devices: Track the efficiency and performance of the separation process.

Coalescing Filters: Additional filters that remove remaining oil droplets to ensure the air is completely oil-free.

HOW DOES A DOWNSTREAM AIR COMPRESSOR FILTER WORK?

Moisture, particle contaminants, microorganisms, and gases are the most variable components of 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 essential.

According to the International Standard, ISO 8573-1:2010, compressed air contaminants like particles, water, and oil are segregated 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 prevent 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 air compressor filter through the inlet port. Contaminated air is filtered while coming from inside to the outside of the filter element. Large droplets of condensate are collected by the element and drained gravitationally. Collected moisture/water at the bottom of the filter bowl is drained out of the filter with the help of an internal float drain. Filtered cleaner air is sent out of the filter through the outlet port. For the Carbon filter, the flow of air is opposite i.e. the inlet and outlet port would change. The contaminated air flows from outside to inside of the filter element, the activated carbon absorbs the oil vapour and odour before passing the air through it.