L&W PURIFICATION
Air Cooler
Filter capacity and filter life, an important theme with financial implications for professional filling stations where cost control is vital. The life of a filter is strongly influenced by the running temperature of the compressor and ambient temperature.
Example: LW 450 E at +20°C outlet temperature has a filter life of approx.33 hrs, at +35°C this time is reduced to just 10 hours! If the air is cooled down to +3°C after the final compression stage before it enters the final separator, the life of the filter cartridge can be extended up to 6 times, in extreme tropical conditions 10 times! The L&W refrigeration dryers, named Air Coolers, can pay for themselves within 1 season in saved filter cartridge costs. To monitor the exact state of the filter and register when the cartridge needs changing, we recommend the L&W Puracon moisture controller.
For some industrial applications, the air cooler can provide suitable drying without the need for filters. The coolers are available as independent units with water separators, automatic condensation drain with timer and silencer, or as the economical.
LW Air Cooler BASIC for connection to a compressor with final stage oil/water separator and drain.
Filter Panels
These panels, although primarily for breathing air purification, can be used for various gas filtration requirements. The high pressure filter housings are certified and documented in accordance with current pressure vessel regulations to a maximum working pressure of 350 bar (5250 psi) and 420 bar (6200 psi).
The assembly is mounted on a sturdy wall panel and piped ready for connection with a pressure maintaining and non-return valve. If required, the inlet can be secured with a pressure relief valve. These panels are the preferred choice for filtration remote from the compressor and are ideal for multiple compressor installations especially when using a central refrigeration dryer, or for upgrading an outdated filter system.
The filter housings are available in three sizes, 1.7, 2.3, 10 litre volume and in single, double or triple combinations. Cartridges are available for breathing air, breathing air with additional CO/CO2 removal, drying, active charcoal, natural gas drying, and more.
L&W CO2 Filter
Due to the large increase of CO2 in the ambient air during the recent years the filling of breathing air bottles according to EN 12021 is not always guaranteed.
The new L&W CO2 Filter is the professional solution to reduce the CO2 value below the permissible limit in the intake section of the compressor
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