Mechanical Technology April 2015

Mechanical Technology — April 2015

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Hydraulic and pneumatic systems

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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-

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.

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.

The ZRS 250-4200 mechanical booster pumps are

based on the simple rotary lobe principle.

Compressor Technique expands vacuum solutions

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-

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.