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Peterson Packaging, a Danish printing company, has selected the Verderflex Dura peristaltic pump to gently handle water-based ink.

Transferring ink from storage containers to the rollers on printing machines was proving problematic for Peterson.

Air diaphragm pumps were originally responsible for the job, but had proved unable to handle the water-based ink gently enough.

As a result, bubbles formed in the ink, ruining the packaging, creating excess waste and adding expense.

To resolve the problem, the company decided to look for a gentle-action pump to ensure bubble-free ink.

The chosen design also needed to be both cost effective and sufficiently compact to fit into the limited space available.

With the Verderflex Dura peristaltic pump, ink is completely contained within the pump’s hose, which is compressed by a rotating roller.

On restitution of the hose, the resulting vacuum draws in more liquid, creating a gentle and accurate pumping process.

The design eliminates any danger of cross contamination or spillage.

The Verderflex Dura is claimed to provide a 70 per cent smaller footprint than similar pumps.

This was an important attribute for Peterson, which required five pumps to fit in a tight space at the end of each print line.

As well as overcoming space constraints, the Verderflex Dura pumps are now said to be delivering performance benefits for Peterson.

In addition to transferring bubble-free ink, the pumps are simple to clean and maintain.

They can run dry without fear of damage and downtime is reduced as the only wearing part is the hose.

Colour change is also quick and simple, according to the company.

Peterson has now installed a total of 15 units into its printing process, according to the company’s engineering manager.

Verderflex® peristaltic hose pumps and tube pumps are the ideal solution for pumping liquids and dosing chemicals. Ranging from smaller Original Equipment Manufacture (OEM) pumps to the world’s largest hose pumps used in very heavy industrial applications.

Verderflex® peristaltic hose and tube pumps are used in many industries including: water and wastewater, mining, food & beverage, chemical, pharmaceutical, printing and packaging.

Verder’s peristaltic tube and hose pumps can pump abrasive, highly corrosive, viscous, high density and shear sensitive products.

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