Dry Screw Compressors – Evolution not Revolution
July 01st 2010 Designed to exceed the expectations and demands of compressor customers in the pharmaceutical, brewing and food industries
The HPC KAESER DSG and FSG
Series is a completely new range
of dry-running, two-stage rotary
screw compressors. Ensuring
exceptional performance, these specialised
ranges of rotary screw compressors have
been designed for applications where dry
compression is specifically required.
Frequency controlled versions are also
available to meet fluctuating compressed
air demand and all models feature water or
air-cooling as required.
The DSG and FSG Series cover free air
deliveries from 13.5 up to 50m3/min (fixed
speed), or 6.8 to 51.8m3/min (SFC frequency
control).
At the heart of these versatile units lies a quality, two-stage
compressor airend. The rotors are equipped with "Ultra Coat", which
is resistant to temperatures up to 300°C. Because this cost-reducing
coating is also highly abrasion-proof, its sealing and protection
performance remains virtually unchanged even after years of
operation. As a result, compressed air delivery also remains
consistent. In other words, HPC KAESER dry-running rotary screw
compressors consume no more energy after years of use than when
first commissioned in order to deliver their rated free air delivery.
"Ultra Coat"therefore helps to keep total system costs to a minimum.
Moreover, HPC KAESER's unique system design reduces costs
further, as air can be used to provide dependable air cooling in
ambient temperatures as high as 45°C for units with drive powers of
up to 315 kW (355 kW with frequency control). Dependability and
efficiency are also enhanced by the PC-based SIGMA Control: Using
up to 20 measuring points, this advanced system is able to
permanently gather both temperature and pressure data thereby
guaranteeing optimum reliability and monitoring.
All models are equipped with premium efficiency rated motors and
feature a range of pre-programmed control modes. This
consequently allows precision optimisation of compressor energy
consumption in base, mid and peak load operation.
These advantages, coupled with numerous other technical
refinements, ensure that every unit lives up to the HPC KAESER
quality promise. For example, the use of chromium steel rotors in the
second compression stage helps guarantee compressed air quality
and significantly enhances service life. In addition, as air intake is
regulated via a hydraulically operated inlet valve, there is no need for
regular replacement of pneumatic diaphragms. This consequently
reduces both service costs and downtime. Furthermore, the use of
fibre-free pulse dampers keeps pressure loss to an absolute
minimum, maintains consistent air quality and prevents
contamination of the compressed air.
HPC Compressed Air Systems specialises in providing
energy efficient, CO2 emission reducing equipment across
the UK's highest quality manufacturing businesses.
Experienced specialists and engineers provide
comprehensive advice and supply complete solutions for
all aspects of modern compressed air technology. More articles from HPC Plc: | 
