Know More About the Various Uses of Peristaltic Hose Pumps

Related Vendors

DÜPERTHAL Sicherheitstechnik GmbH & Co. KG

Italvacuum, Srl

ProMinent GmbH

The advantages of this design are numerous. The perfect seal between the two sides of the pump means that there is no product slip. And when coupled with the pump’s linear speed-flow characteristic, it makes the peristaltic pump ideal for dosing.

Additionally, as the pumped liquid is totally contained within the hose or tube, the design is of considerable benefit to hygiene conscious applications. The total containment of the fluid has the added advantage that no moving parts can clog or react with chemically aggressive fluids.

High Tech Hoses...

Developments in tube and hose technology have a significant role in the peristaltic pump’s wide application scope and high reliability. The choice includes resistance to high temperatures, corrosive chemicals, oils, fuels, solvent and mineral acids and of course includes special grades for food, drink and pharmaceutical handling tasks.

Advances have also been made in the way hoses are manufactured. Historically hoses would fail due to early fatigue. The rubber layers and the reinforcement layer become dis-bonded, a process that is often accelerated by externally machining the hose to achieve equal wall thickness. However, a new hose production process has been developed by some manufacturers. This ensures a uniform wall thickness without the need for secondary machining and this significantly extends the service life of the hose.

... Insights in Traditional Markets for Peristaltic Pumps

Abrasive mining slurries have sub-micron, solid contents in excess of 80 per cent with specific gravity ratings of 2.0. Handling such a medium is a classic application for a peristaltic hose pump. Indeed, it is the only pump type able to cope with such dense fluids whilst maintaining high levels of plant availability.

The variable nature of the corrosive reagents causes diaphragm pumps to clog. This leads to increased chemical usage and lower plant efficiency. Progressive cavity pumps present no solution as they often suffer from burnt stators as they are allowed to run dry. The failings of other pump technologies have led to wide take-up of peristaltic pumps in these tough environments.

There is however no need to dwell on the peristaltic pump’s merits in the arduous end of the applications market. Its case is proven. It scores over other designs in many ways. Let’s look instead at some applications where the peristaltic pump isn’t the most obvious choice but has demonstrated itself to be the ideal product for the job.... on page three!

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