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Dura 35 data sheet - .PDF file.

Verderflex has provided a cost-effective solution to a Swiss airport that had been experiencing significant problems with their water softening treatment. The local water supply required treatment to prevent scaling in the pipework. 

The existing treatment system required a salt solution to be dosed from a storage tank close to the pumps over a 350m pipe-run to the water supply. The piping system had a series of valves and pipes which were not sealed correctly when they were installed and the pipe work contained a large proportion of air.

Consequently, although the mag-drive pumps which were transferring the solution were of good quality, intermittent use meant they ran dry, leading to bearing failure. These mag-drive pumps had to be replaced every three months, resulting in plant downtime and high maintenance costs.

Due to the scale of the airport’s construction and layout, it was not possible to install new pipework and valves and a far more robust pumping solution was required, which would not only dose the solution accurately, but also one that required less maintenance when compared with a mag-drive centrifugal pump.

Verderflex’s local distributor recommended a Verderflex Dura 35 peristaltic hose pump for this application. A peristaltic pump consists of a hose, which is housed in a casing and squeezed by a rotor. As the only part in contact with the fluid is a flexible hose, the pump can run dry and certainly tolerate air in the pipes. The pump itself was sized to run slowly, so as to increase the hose life.

The estimated running time of less than 1,200 hours per year with one year between hose changes was considered extremely favourable by the company.

Click on the link above to download the Dura 35 data sheet.

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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