Peristaltic Pump

What Is a Peristaltic Pump?

A peristaltic pump is a positive displacement pump that moves fluid by compressing flexible tubing with rotating rollers, pushing the fluid forward in a wave-like motion. Because fluid never touches the pump's internal parts, peristaltic pumps are the standard choice for sterile, abrasive, or chemically aggressive fluids — from IV delivery to industrial chemical dosing.

Where Are Peristaltic Pumps Used?

Peristaltic pumps are common in industries that require reliable and sanitary fluid movement. Including:

• Medical and Pharmaceutical: IV delivery, dialysis, and dosing

• Industrial Manufacturing: Precise chemical metering, fluid recycling, and coatings

• Food & Beverage: Flavor and additive dosing, syrup transfer, and filling

• Water & Wastewater Treatment: Sludge handling, pH adjustment, and polymer dosing

Because they are easy to clean and maintain, peristaltic pumps are widely used across industries that rely on dependable fluid handling equipment and fluid processing equipment.

How Does a Peristaltic Pump Work?

If you’re wondering, how does a peristaltic pump work?—think of how you might squeeze toothpaste from a tube. That same rolling, squeezing motion is exactly how a peristaltic pump moves fluid.

The Peristaltic Pumping Mechanism, Step by Step:

1. Flexible Tubing is Placed Inside the Pump Housing

   The pump contains a length of flexible tubing made from materials like silicone or Norprene.

2. Rotors with Rollers or Shoes Compress the Tubing

   As the rotor spins, rollers or “shoes” attached to it press down on the tubing.

3. Fluid Is Pushed Forward

   This compression traps a volume of fluid and pushes it toward the pump’s outlet as the rotor moves along the tubing.

4. The Tubing Reseals Behind the Rollers

   Once the roller moves past, the tubing returns to its original shape. This creates a vacuum that draws in more fluid from the inlet—no valves or seals needed.

5. The Cycle Repeats

   This rolling action creates a steady, pulse-like flow of fluid, ideal for low-shear, precision metering.

Single vs. Multiple Pumps

If you’ve searched how do peristaltic pumps work (plural), the same core mechanism applies—whether it’s one standalone unit or multiple pumps working in tandem within a dosing or metering system.

What Are the Main Types of Peristaltic Pumps?

Peristaltic pumps come in several variations to suit different flow rates, pressures, and operating environments. Understanding the main types will help you select the right design for your system.

Fixed Occlusion vs. Adjustable Occlusion Pumps

• Fixed Occlusion pumps maintain a constant level of compression on the tubing. This ensures consistent flow and is ideal for applications where the same fluid and flow rate are used continuously.

• Adjustable Occlusion pumps allow you to fine-tune the squeeze on the tubing, extending tubing life and accommodating different tubing materials or fluid viscosities.

Tube vs. Hose Pumps

• Tube Pumps use smaller, flexible tubing ideal for low- to medium-flow applications. They’re widely used in lab dosing, medical devices, and small-scale chemical processing.

• Hose Pumps are built for high-pressure, high-flow situations. They use thick-walled hoses to handle abrasive slurries or high-viscosity fluids in industrial settings.

Both pump types rely on Peristaltic Pump tubing, but hose pumps are better suited for rugged, heavy-duty use.

Single-Channel vs. Multi-Channel Pumps

• Single-Channel Pumps move fluid through one tube or hose. They’re compact and simple—great for targeted dosing or transfer.

• Multi-Channel Pumps can run multiple tubes simultaneously, allowing for parallel dosing, mixing, or multi-stream operations in food, biotech, or pharmaceutical manufacturing.

How Peristaltic Pumps Compare to Other Pump Types

Peristaltic Pump vs. Centrifugal Pump

Peristaltic Pumps handle viscous, abrasive, or shear-sensitive fluids with precision. They’re self-priming and ideal for dosing or intermittent flow. Centrifugal Pumps are better for high-volume, continuous-duty applications with clean, low-viscosity fluids (e.g., water, chemicals).

✅ Choose peristaltic when accuracy and chemical compatibility are priorities.

✅ Choose centrifugal for large-scale, low-maintenance flow systems.

Peristaltic Pump vs. Diaphragm Pump

Peristaltic Pumps isolate fluid in the tubing, reducing contamination and maintenance. They’re effective for metering, medical, and food-grade applications. Diaphragm Pumps handle solids and slurries well and can run dry without damage. Ideal for industrial, chemical, and wastewater operations.

✅ Choose peristaltic when clean dosing or chemical resistance is critical.

✅ Choose diaphragm for rugged, solids-heavy processes and on/off cycling.

Peristaltic Pump vs. Gear Pump

Peristaltic Pumps offer gentle, low-shear flow and easy tubing replacement. Great for shear-sensitive or aggressive fluids. Gear Pumps are compact, powerful, and suited for high-pressure, consistent flow in lubrication or fuel applications.

✅ Choose peristaltic for flexible, low-pressure dosing tasks.

✅ Choose gear for steady flow of viscous fluids at higher pressures.

Peristaltic Pump vs. Grinder Pumps

Peristaltic Pumps deliver precise, low-shear flow using a tubing-based design that keeps the fluid contained and makes maintenance straightforward (swap the tube, not the whole pump). Great for chemical dosing, slurries with fine solids, and applications where you want clean containment and predictable metering. Grinder Pumps are built to macerate solids before moving wastewater—ideal for sewage lift stations and systems where rags, wipes, and debris would clog a standard pump.

✅ Choose peristaltic for accurate dosing, cleaner containment, and fluids with minimal solids (or fine suspended solids).

✅ Choose grinder when you’re pumping wastewater with solids that need to be shredded to prevent clogs and downstream issues.

Peristaltic Pump vs. Trash Pump

Peristaltic Pumps are designed for precision dosing and gentle transfer of clean, high-viscosity, or chemically sensitive fluids. They shine in sanitary, lab, or metering applications where contamination must be avoided. Trash Pumps, by contrast, are rugged, high-flow centrifugal pumps built to handle solids-laden water, sludge, and debris on construction sites or in emergency dewatering situations.

✅ Choose peristaltic when controlled flow and fluid purity are top priorities.

✅ Choose trash pumps for fast, high-volume movement of dirty water or slurry.

UPDATE: The Gorman Rupp Super T-Series Trash Pump patent has expired. Read our blog for more info: Super T-Series Trash Pump Copycats: What's Changed & What to Look For

Read our blog for more information on peristaltic pumps compared to other common pump types.

Read More | Peristaltic Pumps are Types of Injection Pumps

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Peristaltic Pump Tubing and Materials

At the heart of every peristaltic pump is the tubing. It’s the only component that comes into direct contact with the fluid, making tubing selection a critical factor in overall system performance and reliability.

Why Tubing Matters

Peristaltic Pump tubing plays a dual role: it serves as both the conduit for fluids and the flexible surface compressed by the pump rollers. Because of this, the tubing must be chemically compatible, wear-resistant, and correctly sized for the pump and application. Selecting the wrong material can lead to leaks, inaccurate dosing, premature wear, or even system failure.

Common Tubing Materials for Peristaltic Pumps

Silicone

Widely used in food, medical, and pharmaceutical settings, silicone tubing offers excellent flexibility and temperature resistance but is less resistant to aggressive chemicals.

Viton®

Ideal for fluids containing oils, solvents, or corrosive chemicals. Viton is highly durable and chemically resistant, though stiffer than silicone.

Norprene®

Engineered for industrial use, Norprene tubing offers exceptional fatigue resistance, making it ideal for long service life in tough fluids handling environments.

Maintenance & Replacement Best Practices

• Monitor for wear: Look for signs like thinning walls, discoloration, or reduced flow rate.

• Replace on schedule: Follow manufacturer guidance based on hours of operation and fluid type.

• Clean properly: Rinse with compatible cleaning solutions to extend tubing life and avoid cross-contamination.

What Are Peristaltic Pumps Used For?

Peristaltic pumps are versatile workhorses across a wide range of industries, offering clean, accurate, and low-maintenance solutions for transferring fluids. Their gentle, contamination-free operation makes them especially useful in environments where hygiene, precision, or chemical resistance is critical.

Medical & Laboratory

In healthcare settings, peristaltic pumps are used for IV delivery, dialysis machines, and lab dosing systems, where precise and sterile fluid transfer is essential. Because the fluid only touches the tubing, these pumps reduce contamination risk—making them ideal for medical dosing and pharmaceutical processing.

Food & Beverage

The gentle, non-shearing action of peristaltic pumps makes them perfect for food-grade filling and dosing applications, such as flavorings, syrups, sauces, and dairy products. Their easy-to-clean design supports sanitary processing equipment standards.

Chemical Processing

In industrial settings, peristaltic pumps are used for chemical metering, slurry transfer, and fluid sampling. They’re often chosen over more complex systems because of their resistance to corrosive fluids, ability to handle abrasives, and straightforward maintenance.

Water Treatment & Waste Handling

Peristaltic pumps shine in sludge and chemical dosing applications for municipal and industrial water treatment systems. They handle viscous, abrasive, and particulate-laden fluids better than many alternatives and can support operations where mud pumps, trash pumps, or surface pumps (surface water pump) are also in use.