The pumping principle, called peristalsis, is based on the alternating compression and relaxation of the hose or tube, which draws the contents into the pump and directs the product to the pump, conveying it to the discharge line.
A rotating shoe or roller moves along the hose or tube, creating a temporary seal between the suction and discharge sides of the pump. As the pump rotor rotates, this sealing point moves along the hose, pushing the product out of the pump into the discharge line. When the pressure is released, the hose or tube returns to its original shape, creating a vacuum and drawing fluid into the suction side of the pump. Thanks to this mechanism, the pump offers a powerful positive displacement action that provides self-priming.
Proportional Dosing
The perfect seal between the two sides of the pump prevents liquid from flowing back. In addition, since the pump's speed-flow rate is linear, peristaltic pumps are ideal for dosing applications.
No Cross-Contamination
The pumped liquid does not come into contact with any moving parts because it is completely contained within the reinforced hose or tube. This makes peristaltic pumps a hygienic pumping solution and the risk of contamination is eliminated. In addition, maintenance time is reduced because the only component that wears is the hose or tube.
Advantages of Peristaltic Pumps
Every peristaltic pump has a flexible hose or tube. Thanks to this:
✔ Creates an open flow path and exhibits high resistance to abrasion.
✔ Allows easy flow of solids, high-density (S.G.) and viscous media.
✔ Gently processes sensitive shear products (such as polymers, even whole fish), despite being able to pump the world's most challenging fluids.
✔ Flow rate is proportional to speed, making it suitable for dosing.
✔ Has a wide range of uses from laboratories to mining applications.
✔ The hose prevents cross-contamination and ensures a safe working environment.
✔ Contains no mechanical seals, thus reducing maintenance needs. Safely contains fluid inside when the hose tears.
Features and Benefits of Peristaltic Pumps
✔ Mechanical seal-less (seal-free) design
✔ Low maintenance cost
✔ Can run dry and is self-priming
✔ Gentle pumping action (suitable for shear-sensitive products)
✔ High suction capacity
✔ Abrasion resistant
✔ Has solid handling capacity
✔ Can be operated in reverse
✔ No fluid slip
✔ Provides precise dosing
Peristaltic Pump Types
Peristaltic pumps are divided into two main categories:
✔ Hose Pumps: Suitable for fluids with high solids content.
✔ Tube Pumps: Excellent for low flow requirements, have programmable features and offer multiple head options.
Where are Peristaltic Pumps Used?
Peristaltic pumps are used in many industries. Especially:
✔ In the mining sector, for pumping slurry with high solids content
✔ In wastewater and biogas plants, for corrosive, viscous fluids
✔ In chemical laboratories, for precise dosing and chemical transfer processes
Verderflex Hose and Tube Pumps
Verderflex pumps offer powerful and durable pumping performance in the most challenging conditions.
✔Vantage 5000 models are easily programmable tube pumps for chemicals and laboratory applications.
✔The industrial tube pump series is designed for use in hazardous areas.
✔These pumps can be integrated independently or into automation systems.
✔Hygienic options are also available for the food and beverage industry.
Verderflex Hose Pumps
✔Verderflex Dura and Verderflex VF are designed to reliably pump the most challenging fluids.
✔It has a wide range of uses from the mining sector to water treatment plants.
✔It has developed the longest-lasting hose on the market and is resistant to abrasive applications.
✔These hoses can also be used in many other peristaltic pump brands.
✔Designed for safety.
✔VF and Dura series completely retain the liquid in the pump housing thanks to leak-proof hose connections, thus protecting operators and the environment.
Key Features of Verderflex Hose Pumps:
✔ Offers repeatable dosing with ±1% accuracy
✔ Does not slip (fluid leakage)
✔ Has 95% vacuum capacity or provides 9.5 meters (31 ft) suction power
✔ The largest peristaltic hose pump can pump 90 m³ (390 US gallons) per hour
✔ Can operate up to 16 bar (230 PSI) pressure
For more information or technical support about peristaltic pumps, you can refer to the manufacturer's guides!
