It’s an internal designation code which is used in the product company. From customer point of view there is no need to learn this codes, but as a dealer you can from time to time run into this terms, so it’s good to have some knowledge what it means. This “ internal designation “ is also visible on the data plate attached on the back of the dryer.
There is no exact role to follow. But some of the major points to consider are: Pressure Dew Point needed (PDP). Volume of compressed air (SCFM or l/min) Maximum compressed air dryer inlet temperature (°F or °C) Maximum ambient temperature (°F or °C) Maximum compressed air pressure (PSIG or BAR) Maximum allowable dryer pressure drop (PSIG or BAR) The FAD published in leaflets are referring to the REFERENCE CONDITIONS: Working pressure 7 bar. Working temp. 35°C Ambient Temp. 25°C. If the dryer will work at different reference conditions, then we must recalculate the new FAD.
The optimal solution to have a calm and stable flow over the dryer is to place the receiver before the dryer. Also the filter should be place before the dryer but after the receiver. To get clean air into the dryer extend the life time of the dryer and will increase your air quality. Ask the customer what the area of use is, for example instrument air its classified under ISO certification. Talk to your sales responsible if you are unsure how the ISO classing is build up, or read the filter leaflet for advice.
In almost all application and areas of use there is a need of a dryer. In a very few applications you can skip the dryer, for example if the air is in direct contact with water. Water have a direct damaging impact on all kinds of machinery equipment, to protect your production we strongly recommend you to always offer a dryer to end customer and explain the risks without having dry and clean air.
The refrigerant dryers uses an refrigerant gas in order to cool the compressed air and then remove the water condensate from the air, with this technic we can reach MAX. 3°C. PDP. An adsorption dryer, use an " adsorption material called desiccant " in order to remove ( adsoprb ) the humidity on the compressed air. With this method we can reach a PDP < 3°C. ( -40°C. or -70°C.). Depending on which dryer and option the customer chooses to use. An adsorption dryer is required to be used when the ambient temperature goes under ZERO °C, to avoid ice building in pipes and applications.
The product company produce more than 12 000 dryers per year. Well priced and high quality together with low maintenance costs are some of the main arguments. The compact design and the wide product range is other strong arguments. The simplicity and well planned placement of the service parts results in easy and quick maintenance.