Type FCA..CMSM point of use dryer are mainly designed for separating humidity (water vapour content) from compressed air flows (dry-type filtration). Point of use dryer are therefore used, if there are no any liquid contaminants in the compressed air flow and when small ounts (maximum 4 m³/h) of dry compressed air (up to -40°C) for short periods (approximate 20 hours total load capacity) are required.
Type FCA filter housings are made from high-quality, corrosion-resistant aluminium, manufactured in a casting process (gravity casting). For surface finishing purposes and for increasing resistance all filter housings have to go through a chrome(VI)-free passivation process and are finished by an impact-proof and abrasion-proof powder coating which is provided on the outer side of the housing. The filter housings comply with the requirements
of the Pressure Equipment Directive 97/23/EC, and some (depending on the model and pressure level) have the CE marking of this European directive.
Point of use dryer are provided with a manual drain (code CMS'M'). EFST..CMS filter cartridges consist of a loose desiccant filling, embedded between two coarse filter cloths and mesh screens. Furthermore a pleated general purpose filter element (Z) is fully integrated into the cartridge downstream in order to reliably prevent even the finest desiccant abrasion from leaving the filter cartridge. A transparent perspex cylinder as a main body makes the desiccant filling visible, the pleated general purpose filter media is located between two stainless steel cylinders. Both desiccant and filter stage are completed / separated by plastic end caps. The adsorptive desiccant stage as well as general purpose filter stage is fully incorporated in a single, compact cartridge unit. As a result a further downstream dust filtration is no longer required.
The longish shaped desiccant bed ensures a long contact time of the compressed air with the desiccant and thus a low dew point and long lifetime. The integrated general purpose filter makes a downstream dust filtration by means of a complete separate dust filter unit superfluous (housing and element) and thus reduces differential pressure and costs - operating as well as investment costs. All the features mentioned above contribute to a point of use dryer which has a long service life (high adsorption capacity) combined with economic
efficiency (low differential pressure, small investment costs) and maximum operating safety (integrated design). This guarantees extremely low dew points and thus dry air.