Advantages of Choosing Valisi Peristaltic Hose Pumps
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Complete fluid containment - the pumped fluid only comes into contact with the inside of the tubing or hose which eliminates the risk of leaks, seal failures & cross-contamination.
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Excellent chemical compatibility with a wide range of tubing materials available.
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Since there are no valves, seals or impellers in contact with the fluid, solids pass through the tubing without clogging or causing mechanical wear.
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The flow rate is directly proportional to the speed of the pump, allowing for accurate and repeatable dosing.
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The pumping action of the pumps are relatively gentle and low in shear, so shear-sensitive fluids such as polymers, emulsions, certain food products etc, are less likely to be damaged during pumping.
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Because there are no mechanical seals or check valves to adjust or replace, and routine maintenance is usually limited to replacing the tubing or hose resulting in shorter downtime and simpler servicing procedures.
N Series
VALISI peristaltic hose pumps are ideal for transferring and dosing a wide range of fluids in different applications.
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VPH Series
VALISI peristaltic pumps perfect for high-pressure, low-volume transfer tasks, including sampling, emptying, food processing and water treatment applications.
VIEW OUR RANGEWhat are Peristaltic Pumps?
A peristaltic pump is a type of positive displacement pump which moves fluid through a flexible tube by compressing and releasing it in a rhythmic motion. The pump operates using a set of rollers that rotate around a central hub, squeezing the tube against a continuous flow. Once the rollers release the tube, it returns to its original shape, drawing in more fluid due to the vacuum effect.
This design makes peristaltic pumps ideal for handling corrosive or shear sensitive fluids, as the liquid is only in contact with the inner surface of the tubing, reducing both contamination and maintenance.
Can they self-prime?
Self priming = the pump can remove air and draw liquid into itself without manual filling
Yes they are self priming, and they can typically generate up to 8-9 meters of suction lift. (Dependant on tubing material, pump size & speed).
Can they run dry?
Yes, they can run dry because they have no internal fluid contact, and the simple mechanism of the rollers compressing and releasing the tubing to push the fluid along.
50+ years of British manufacturing from a 3rd generation family business
At Crest, when we put our name on a pump, we're making a serious commitment. It's more than a promise or a guarantee. It's a commitment to give you great quality life-long service for corrosion resistant pumps that will last, even in the most corrosive of environments.
Talk to us
We'll evaluate your application to recommend the most efficient and reliable pump solution. As certified pump system auditors we can identify all possible areas of pump efficiency improvements and cost savings.
Get fast delivery
Because our pumps are British made, we keep lead times short and service quality high. So, your energy-efficient pump will be delivered on time when you need it!
Enjoy peace of mind
With Crest Pumps you will never have to worry about unplanned downtime again thanks to reliable and efficient pumps backed up with lifetime support.