Filters and Centrifugal Separators
Why use compressed air filters?
On average, a compressor sucks in up to 190 million particles of dirt, hydrocarbons, viruses and bacteria with every cubic meter of atmospheric air. The compressor itself can only remove the larger particles and the majority of the contaminants remain in the compressed air. This means that for most applications careful treatment of the air is necessary: Clean, quality compressed air maximises air-tool service life, ensures that pneumatic machinery and control systems operate at the peak of their performance and keeps pipes & valves free from contamination. It therefore not only reduces service, maintenance and repair costs, but can also reduce initial investment costs.
All KAESER air filters and compressed air treatment components are specifically designed for use in combination with one another. Compressed air of every quality class is available ranging from general works air right up to foodstuff and pharmaceutical grade air. KAESER compressed air filters are also available for high-pressure applications (see below). KAESER compressed air systems provide the required grade of compressed air quality to suit every compressed air application and ensure unrivalled reliability. All KAESER filters operate with minimal pressure drop to deliver optimum energy efficiency.
KAESER high-pressure 48/62 bar filters are available for installation at the booster outlet for special high-pressure applications, e.g. PET container production. These also ensure certified compressed air quality. These high-pressure filters are characterised by their rugged, pressure-resistant steel casings. Different filter elements - ranging from pre-filters to activated carbon filters - are available for pressures up to 62 bar. KAESER high-pressure filters can also be equipped with the electronically controlled ECO Drain condensate drain (PN63).
The FST sterile filter is made of high quality stainless steel that prevents bacterial growth and corrosion. It is perfect for applications that require sterile, bacteria-free compressed air,such as the food and pharmaceuticals industries. All components comply with FDA regulations concerning contact with foodstuffs as per CFR (Code of Federal Regulations) Title 21. The entire filter volume is used for bacteria and particle separation. Operating temperature ranges from -20 to +200 °C. The necessary sterilisation measures can be carried out either via in-line sterilisation, or autoclave.
For low maintenance high air quality, fit an ACT activated carbon adsorber to remove remaining oil vapour after the applicable air treatment and pre-filtration processes. Advantages include: Minimal remaining oil content down to 0.003 mg/m³ (considerably less than the limit for Class 1 in accordance with DIN ISO 8573-1), generous volume and optimised flow mean that the long-lasting activated carbon typically ensures over 10,000 operating hours.> Large inlets/outlets also ensure low differential pressure for highly efficient operation.
The centrifugal separator removes large volumes of condensate, as well as particles up to 5 µm, from the compressed air. Optimised design enhances the centrifuge effect and ensures a near constant degree of condensate separation over a wide flow volume range. The centrifugal separator is installed between the compressor and the refrigeration dryer and removes the ‘liquid condensate’ from the compressed air. This provides the refrigeration dryer with additional reserve drying capacity. This is particularly important at high ambient temperatures in order to ensure that the required pressure dew point is consistently maintained. Each centrifugal separator should be fitted with an electronic ECO Drain condensate drain (available as a complete set with all necessary components).
KAESER FILTER products are key components in delivering compressed air of all purity classes in accordance with ISO 8573-1 and they perform their duties with minimal pressure differential. Moreover, their service-friendly design not only ensures simple, error-free opening and closing of the filter housing, but also allows quick and clean element changes. KAESER FILTER products are available in four filter grades. Nine housing sizes provide efficient filtration for flow rates from 0.60 to 14.20 m³/min.