Coalescing filters are a relatively new approach to removing condensed oil and water from compressed air. The name is confusing as they are not filters as in the generally accepted terminology. Coalescers operate by forcing the condensates, which can be microscopically small, into large droplets which can be collected by conventional means. During this operation, the condensates pass through the coalescer element or cartridge and are collected on leaving the element.
Coalescing elements are scientifically designed and manufactured to high standards in order to collect condensates down to a micron in diameter.
Because of the fine structure elements should be protected from blockage by dust and rust particles by ensuring that reasonably clean dust- and rust-free air enters the coalescer.
Provided coalescers are correctly installed they can have long operating lives, giving oil and condensed water free air at economical costs over lengthy periods.
Construction of Coalescers
Our coalescing elements are manufactured to a high standard in England by Tiger Filters. After manufacturing they are subject to stringent tests to ensure that they comply with the high standards specified.
Each element consists of a sandwich with different layers which each make an important contribution to the successful operation of the coalescer.
Coalescing Element Construction
Why Quality Filtration?
Modern industrial applications require ever higher quality air. Applications such as pneumatic automation, electronics, pharmaceutical and food industries, to name just a few, are becoming ever more sophisticated and require ever greater levels of air purity.
The level of atmospheric contamination that can be found in air typically amounts to as much as 140 million particles per cubic metre. About 80% of these are smaller than 2 microns in size, and therefore pass through the air compressor’s air intake filter and pass into the compressed air network itself. When compressed to a pressure of 7 barg the number of particles contained in the compressed air reaches 1120 million per cubic metre.
As if this were not bad enough, further impurities are added to the compressed air:
- Water vapour, which will condense to a liquid within the compressed air circuit.
- Oil vapour and air-borne oil particles produced during the compression process itself.
- Solid contaminants produced by the compressed air distribution network.
Failure to efficiently remove these impurities will lead to serious consequences, including:
- Increased maintenance costs.
- Interruptions in the production process.
- Costly tool wear.
- Damaged finished products.
All this can simply be avoided by professional-grade compressed air filters. PureTec has been designed to offer years of guaranteed high efficiency filtration in even the harshest conditions, safeguarding the User from the costly consequences of unfiltered or poorly filtered compressed air.
Type & size of atmospheric polluting agents