22 November, 2017

Pumps can halve central vacuum supply energy costs

23 August, 2017

Atlas Copco has extended its range of variable speed driven vacuum pumps with the addition of three models offering flow rates up to 5004 m3/h. The new GHS 3800-5400 VSD+ rotary screw pumps are particularly suited for large industrial vacuum users in the UK’s glass, plastics, canning and food packaging industries. Companies in these sectors stand to reduce their energy consumption by up to 50% if they upgrade their existing centralised vacuum systems or switch from using multiple, decentralised point-of-use pumps to a central vacuum system based on one or two super-efficient GHS VSD+ machines.


Richard Oxley, vacuum product manager for Atlas Copco in the UK commented: “We see massive potential for further adoption of this technology in the UK and predict that the vast majority of large vacuum users in associated industries, potentially in excess of 90%, could stand to halve the energy consumption of their industrial vacuum systems as a result. To ease the transition to a central vacuum system we’re offering free vacuum energy audits to new customers and a 30-day no obligation trial of the technology on certain models.”

Oxley added: “To illustrate this, I recently visited a company in the food packaging industry who we predicted could save in excess of £16,000 a year in energy costs by replacing their existing centralised system with a smaller number of GHS VSD+ pumps. Following this, an independent energy auditor was brought in to verify the results, while the pumps were on trial, who further upgraded the potential savings to the region of £20,000 a year.”

Significantly higher performance levels

GHS VSD+ pumps are claimed to provide significantly higher performance levels and reduced maintenance, noise and heat emissions compared to conventional oil-sealed and dry vane vacuum pumps. When installed as part of a central vacuum system, they can be used to precisely tailor vacuum production to meet customers’ demand. All the pumps are equipped with easy-to-use Elektronikon controllers that can be integrated into a process control system and also control other manufacturers’ vacuum pumps. They are also fitted with a Smartlink remote monitoring system and variable speed drive, making them very economical to run. Additionally, the pressure set point control function ensures the pumps deliver the lowest possible vacuum flow with which the required vacuum can be maintained. As a result, no excess energy is wasted and life cycle operating expenses are significantly reduced.

“The payback period for a converted system is extremely short,” adds Richard Oxley. “The new units deliver more cubic metre per hour, per kilowatt than any other vacuum pump of comparable capacity.”

Due to the extremely high oil retention capacity of the GHS VSD+, environmental impact at all operating pressures is significantly lower compared to similar sized oil-injected vacuum pumps. The range also now includes a patented oil separator that limits residual oil levels to a maximum of 3 mg/m³. “This means the exhaust air is significantly more environmentally-friendly in comparison to other pumps on the market” Oxley reports.




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