Atlas Copco and Linde Gas Work Together to Provide Helium Solutions

     Atlas Copco and Linde Gas Work Together to Provide Helium Solutions

  PR Newswire

  WILRIJK, Belgium, July 17, 2014

WILRIJK, Belgium, July 17, 2014 /PRNewswire/ --

The high-pressure products manufactured by Atlas Copco reflect nearly a
century of extensive experience in the field of high-pressure technology.
Atlas Copco has had long-term, cooperative relationships with well-known
global providers of industrial gases, providing them with gas process

Linde Group is a leading global company of industrial gases and engineering
with approximately 50,500 employees in over 100 countries. As one of the first
international industrial gases companies to enter China since the 1980s, Linde
has closely cooperated and grown with its customers in the chemical,
petro-chemical, metallurgy, manufacturing, electronic, food, and
pharmaceutical industries. Atlas Copco and Linde Industrial Gases Group have
cooperated on a global scale with hundreds of high pressure compressors
providing power for Linde gas supply facilities.

In 2011, Linde purchased two sets of helium compressors for its helium
provision facilities in Pixian, Chengdu. The project was to supply cooling
helium for an international manufacturer of professional medical imaging
technology products, primarily magnetic resonance imaging (MRI) systems. MRI
systems require a continuous supply of low-temperature air to cool the
magnetic coil of the scanner. This creates superconducting properties in the
coil and ensures the current smoothly flows through it, generating a
high-intensity magnetic field.

High volume rate, low maintenance costs and safe operation 

Liquid helium is the only cooling media that can cool the magnetic coil to an
ultra-low temperature to achieve superconductivity (zero resistance). However,
the liquid helium pressure generated in the high-pressure container can be up
to 50-60 Psig and cannot be pumped directly into the MRI device. Instead a
professional helium compressor pumps out and decompresses the liquid helium to
10 Psig or below so it can then be used to fill the MRI device.

A helium compressor is also required to exhaust the evaporated helium that is
generated when producing an MRI. This can greatly affect compressor
performance and stability. Therefore, Linde chose a helium compressor from
Atlas Copco.

Atlas Copco's helium compressor is specifically designed for low-density
gases. The level-5 compressor features a low compression temperature and a
gas-tight crankcase design to ensure that there is no gas loss or gas
pollution when sending return air from the crankcase to the suction side. It
features a high volume rate, low maintenance costs and safe operation, and it
has been widely recognized throughout the world.

Stable operation since 2012 

" We selected Atlas Copco compressors not only because Atlas Copco is a leader
in today's high-pressure systems, but also because of their excellent
performance, high reliability and durability. We had even greater confidence
after Linde and Atlas Copco established long-term, worldwide cooperation, "
said Mr. Yang Jun, Site Director of Chengdu Branch of Linde Gases, who is
responsible for the project.

" Helium has the characteristic of very low, compression-specific heat, so the
temperature of the helium can be increased to very high when compressing it.
It also requires that air mixing be absolutely eliminated. Meanwhile, the MRI
device requires no compressor downtime due to very long pre-cooling times or
high operating costs. This requires a high-performing compressor. Helium
compressors are designed to specifically meet the needs of helium conveying,
including high operating stability and safety. This is the reliable guarantee
of the whole liquid helium supply project!" Mr. Jun added.

Two sets of helium compressors are used for high purity and low purity helium
conveyance. Since on-site testing in March 2012, the units have been in stable
operation. As the After-sales Service Manager of Atlas Copco Western, Mr.
Zhang Daipin observed the trial run at Linde's Pixian location. He said, "
Atlas Copco ' s professional team adheres to a customer-centric service
concept to safeguard that the product can stably and efficiently function with
regular on-site services. "

Atlas Copco is a world-leading provider of sustainable productivity solutions.
The Group serves customers with innovative compressors, vacuum solutions and
air treatment systems, construction and mining equipment, power tools and
assembly systems. Atlas Copco develops products and service focused on
productivity, energy efficiency, safety and ergonomics. The company was
founded in 1873, is based in Stockholm, Sweden, and has a global reach
spanning more than 180 countries. In 2013, Atlas Copco had revenues of BSEK 84
(BEUR 9.7) and more than 40 000 employees. Learn more at .

Atlas Copco ' s Compressor Technique business area provides industrial
compressors, vacuum solutions, gas and process compressors and expanders, air
and gas treatment equipment and air management systems. It has a global
service network. Compressor Technique innovates for sustainable productivity
in the manufacturing, oil and gas, and process industries. Principal product
development and manufacturing units are located in Belgium, Germany, the
United States, China, India and Korea.

Contact: For further information please contact: Michael Gaar, PR Coordinator,
Telephone: +32(0)3-750-80-88, e-mail:
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