Two new models, updating the mid-range of CompAir's 'L' series rotary
screw compressors, feature new air end technology that is claimed to
offer significant efficiency enhancements. The compression element used
in the new L55 and L75 models is the one currently being used in the
company's latest energy efficient portable range. Modular in design, it
includes both oil filter and thermostatic valve, which are normally
located outside the element. This reduces piping and connections within
the compressor, improving reliability and minimising the risk of oil
leaks.
Other features include a 15% increase in volume flow rate, low noise
levels and the addition of a cooling air filter that helps improve the
efficiency of the filters and coolers and keeps the compressor interior
clean. The L55 and L75 also have a smaller footprint so that they can be
transported through a standard width fire door. Most components are
grouped in the vicinity of the compression element to ease maintenance
operations, and access for servicing is provided by a single, large
hinged door.