The fact is, there are more refrigerant dryer failures in the summer months. Atlas Copco is holding a stock of fridge dryers and filters, at a discounted price, if you quickly need a replacement fridge dryer. *T&Cs apply.
Why do dryers fail in hotter weather?
Even a short period of hot weather can result in compressed air users experiencing refrigerant dryer failures, due to the effects of excess moisture in their compressed air. Simply put, compressed air holds more moisture when the weather is hot and humid. The determining factor for moisture in compressed air is the pressure dew point (PDP). Essentially, the PDP is the temperature at which the air can no longer hold any more water vapour at the current working pressure, so the water vapour condenses into water.
What is Pressure Dew Point (PDP)?
Atmospheric air contains more water vapour at high temperatures and less at lower temperatures. This affects the water concentration in the air when it is compressed. The PDP is used to define the water content in the compressed air. A low PDP value indicates a smaller amount of water vapour in the compressed air.
For example, a compressor with a working pressure of 7 bar and a capacity of 200 l/s that compresses air at 20˚C with a relative humidity of 80% will release 10 litres/hour of water into the compressed air line!
What is the problem with water vapour in the air?
If left untreated, the water vapour condenses into water, and water in the compressed air system can have a detrimental effect on your production or delivered product. This moisture can corrode your pressure vessels and ferrous pipework. At this point, you might notice signs that the dryer is failing, for example, unexpected drops in pressure, a knocking sound from the pipework or water leaking out of your air-operated equipment. Water in the compressed air system can also lead to instrument malfunction, corrosion of the air tools and equipment or the growth of microorganisms. Moisture or rust particles getting into the air stream could even affect the compressed air application or spoil the product that is being manufactured.
How to remove moisture from a compressed air system
The key is to eliminate the moisture problem when the ambient temperature picks up, in order to stop too much moisture going into the compressed air line in the first place. Dryers and filters are the two main technologies that help deal with moisture in compressed air. They can effectively protect your system from the expensive effects that moisture can have on your equipment and end products.
Which dryers and filters are best for my compressor?
If your dew point requirement is not too stringent or your ISO8573-1 air quality moisture content is class 4, 5 or 6, a refrigerant dryer is a common choice. They are affordable, easy to operate and provide dry and clean compressed air.
Filters are an essential part of any compressed air treatment and play a crucial role in the protection of an air system. However, their importance is often overlooked - and that can be a very costly mistake. Atlas Copco’s coalescing filters efficiently reduce oil aerosol, particulate and liquid water in your compressed air stream to protect your investment, equipment and processes.
Discounted price for refrigerant dryers and filters
Atlas Copco is offering a fridge dryer/filter package priced at a very competitive rate. We are holding a stock and can deliver quickly to a site whose dryer has failed due to the recent heat.
*T&Cs
The promotion applies to Atlas Copco FX refrigerant dryers up to 300 l/s size and the associated filters (pre and post-filters or a single filter i.e. either a DD(+) and PD(+) filter or a UD+ filter.) The filters and dryers are available at a discounted price only via an authorised Atlas Copco distributor.
