Mechanical Technology April 2015

⎪ Hydraulic and pneumatic systems ⎪

Compressor Technique expands vacuum solutions

Following hot on the heels of the extended vacuum solutions portfolio for rough and medium vacuum introduced during 2014, Atlas Copco Compressor Technique has introduced a new portfolio of pioneering vacuum products.

I n addition to the new range of two-stage oil-sealed rotary vane vacuum pumps, Atlas Copco has also unveiled a new range of mechanical vacuum booster pumps, rotary piston pumps, liquid ring vacuum pumps as well as steam ejectors. This new portfolio supports the mining, cement, paper, refineries and food sectors as well as industries as diverse as aerospace, automotive, refrigeration, glass, bottling, canning and woodworking. Atlas Copco’s new GHS VSD+ Series is a highly efficient vacuum pump with a variable speed drive (VSD). Based on the well-known and du- rable plug-and-play design principles of Atlas Copco compressors, these vacuum pumps have been designed by vacuum engineers to deliver peak performance at operating pressures commonly found in industrial applications. “This innovative, intelligent vacuum pump represents a real leap forward in the vacuum indus- try,” says Charl Ackerman, business line manager for Atlas Copco Compressor Technique’s Industrial Air Division. “Our heavy investment in R&D has resulted in unparalleled world-class vacuum technology designed and engineered with features that deliver significantly higher efficiency and better performance against benchmarked oil-sealed and dry vane vacuum pumps.” Features and benefits of the GHS VSD+ Series include: • Energy savings of around 50%: The state-of-the-art VSD and innovative motor design combination sets a new standard in efficiency and dramati- cally reduces lifecycle costs. • Quiet operation: Noise levels are ap- proximately half compared to similar technologies. • Sustainable productivity due to built- in efficiency: The series conforms to the energy management and environmental requirements speci- fied in ISO 50001 and ISO 14001, respectively. • Reduced environmental impact: Due to ultra-high oil retention at all operat-

The GVD 40-275 Series two-stage oil sealed rotary vane vacuum pumps are renowned

for their high ultimate vacuum, rapid pumping speeds, quiet operation and ability to handle water vapour.

With over 10 000 units

sold, the Atlas Copco GLS 250-500 Series of rotary piston pumps are the industry’s most efficient, space-saving design. ing pressures, from ultimate pressure to atmospheric pressure. The GVD 0.7-28 Series of small two-stage oil-sealed rotary vane vacuum pumps deliver excellent ultimate vacuum pres- sure, high pumping efficiency and superior vapour handling capabilities with quiet operation. These pumps offer a reliable and stable proven performance that sets the industry standard for R&D and sci- entific pumping applications. All pumps and motors are approved to UL and CSA standards by an external testing house and feature a patented mode selector switch. “This means that one model is suitable for both high vacuum or high throughput applications,” explains Ackerman. The GVD 40-275 Series of two-stage oil sealed rotary vane vacuum pumps are renowned for their high ultimate vacuum, rapid pumping speeds, quiet operation and their ability to handle water vapour. These direct drive rotary vane pumps are inherently compact and vibration free – and the finger-proof fan and coupling housings offer excellent operator protec- tion. A comprehensive range of accesso- ries further expands the pump’s suitability across a variety of vacuum applications. ZRS 250-4200 mechanical booster pumps are based on the simple rotary lobe principle. “These remains the pre-

The ZRS 250-4200 mechanical booster pumps are based on the simple rotary lobe principle. ferred option for applications where high pumping speeds are required for pres- sures in the region of 0.01 to 50 mbar,” states Ackerman. This pump must always be backed by another pump, which can deliver against a high-pressure differen- tial to atmospheric pressure. Operating at relatively low pressures, the mechanical booster pump is not exposed to the same concentrations of corrosive process me- dia as the back-up pump, which makes it highly reliable. With over 10 000 units sold, the Atlas Copco GLS 250-500 Series of rotary piston pumps are the industry’s most efficient, space-saving design. The GLS has been improved, upgraded and fine- tuned to deliver even better dependability and productivity, combined with minimal maintenance and process downtime. This is crucial in demanding applications such as the automotive or aerospace industry as well as their supply chains. Atlas Copco liquid ring vacuum pumps are offered as standard packages in a number of configurations and are suitable for operation in once through, partial or total recirculation. The AW liquid ring vacuum pumps are available for both single- (AWS) and two-stage pumps (AWD) with capacities ranging from 200 to 37 500 m³/h and vacuum levels down to 30 mbar. q

Mechanical Technology — April 2015

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