Oil-free compressors provide purity and energy savings for Princes Gate 03 August 2012

Princes Gate Spring Water says it has achieved "significant" energy savings as well as production improvements at its Wales bottling plant by replacing the oil-lubricated compressor installation with Atlas Copco oil-free machines.

The company's Narberth, Pembrokeshire plant bottles spring water and production requires a constant 108 l/s supply of high-quality compressed air at 7bar for the line's low-pressure air users, which include air cylinders, manifolds, filling equipment and inking machines.

According to Endaf Edwards, Princes Gate's operations director, the company's decision to install Atlas Copco oil-free compressors – a ZT37 VSD and a ZT18 – together with new AIRnet pipework, was influenced by the need to ensure optimum air quality and product purity.

Atlas Copco's process air complies with the standard of air purity, ISO 8573-1(2001), and also the Class 0 industry standard, which measures all three forms of oil contamination: aerosol, vapour and liquid.

What's more, the integrated frequency converter, which varies the speed of the drive motor to follow compressed air demand, minimises energy – saving Princes Gate up to 35% in costs.

"The Atlas Copco equipment is proving to be very efficient," comments Edwards.

"It produces the 100% oil-free, high-quality, dry air we need and is extremely reliable. In our view, the installation was carried out very professionally and we have no hesitation in recommending Atlas Copco's equipment."

Brian Tinham

Related Companies
Atlas Copco Compressors

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