Eccentric Pumps, LLC

Eccentric Pumps- A New Revolution in Hose Pump Technology

Eccentric Pumps creates a new revolution in peristaltic hose pump design. Our unique approach to the hose pump employs a single oversized roller that compresses our highly engineered, low friction hose through more than 360 degrees of rotation.

Benefits include more flow per revolution and only one compression and expansion per cycle. At equal performance points the pump runs slower and the hose lasts longer than pumps with multiple shoes or rollers.

Why should all of this matter? Most hose pumps on the market today, including the Watson Marlow Bredel SP and SPX series hose pump and the Verder pump use shoes to compress the hose. When the shoe slides over the outside of the hose, it creates friction and heat, and heat is an enemy of long hose life.

The Eccentric Pumps SLP series uses a large diameter lubricated roller that does just that – it rolls over the hose. This means that there is less friction, and therefore less heat, than a comparable Watson Marlow or Verder hose pump.

In addition to less heat, the Eccentric Pumps SLP series hose pump functions with only a single compression of the hose per revolution. Compare this with our competitors' pumps that use multiple shoes or rollers. For every one rotation, our pump has one compression of the hose. Our other competitors have at least two compressions per revolution and in some cases three or four! Since the hose is the heart of a peristaltic hose pump, and hose life is proportional to the number of squeezes, our hose will outperform our competitors at the same speed.

Finally, our hose takes up the full 360 degrees of the pump housing. This is important because our pump, at an equal size (when compared to Watson Marlow Bredel or Verder) will produce 55% more flow at the same speed. This means that you can get more flow at the same speed or run our pump slower for the same flow.

So, when considering which pump to buy, think about these facts:

A single roller is better than multiple rollers or shoes because it squeezes the hose only once per revolution
A roller is better than shoes because it rolls across the surface of the hose and builds less heat than shoes
A full 360 degrees of hose is better than a hoses arranged in a "C" shape because you get more flow per revolution

All three of these facts lead to longer hose life, less down time between maintenance and a happier customer!

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