Peristaltic Pump Types and Their Working Modes

A peristaltic pump is a type of mechanical pump that uses rotating rollers to compress and move a flexible tube or hose, which creates suction and propels the liquid or fluid contained in the hose. This type of pump is commonly used in a variety of industries due to its ability to handle delicate and viscous fluids, as well as its ability to operate in a variety of conditions and environments.           

One of the primary applications of peristaltic pumps in industry is in the medical field. These pumps are often used to deliver precise amounts of medication or nutrients to patients, as they can be easily controlled and provide accurate flow rates. They are also commonly used in dialysis machines to move blood and dialysis fluid. Peristaltic pumps are also widely used in the food and beverage industry. They are often used in the production of beer, wine, and other alcoholic beverages, where they are used to transfer liquids and control the flow of ingredients during the fermentation process. They are also commonly used in the dairy industry to transfer milk and other dairy products.   

Peristaltic pumps are also used in water treatment plants to transfer and mix chemicals, as well as to move water through the filtration process. In the mining industry, peristaltic pumps are used to transfer slurry, a mixture of water and solids, to extract minerals from ore. Peristaltic pumps are also used in the manufacturing industry, where they are used to transfer adhesives, paints, inks, and other viscous materials. They are also commonly used in the automotive industry to transfer lubricants and other fluids.     

One of the key advantages of peristaltic pumps is their ability to handle delicate and viscous fluids without damaging them. Unlike other types of pumps, the flexible tubing used in peristaltic pumps does not come into contact with the fluid, which means that there is no risk of the fluid being damaged or contaminated.  Peristaltic pumps are also known for their reliability and durability. They are simple in design and have few moving parts, which means that they require minimal maintenance and have a long lifespan. They are also able to operate in a wide range of temperatures and environments, making them suitable for use in a variety of industries.   There are primarily a few categories of peristaltic pumps.

Basic Speed-Variable Peristaltic Pump:

• Utilizes a stepper motor drive for adjustable and digitally displayed pump speed.
• Features start/stop functionality, direction change, state memory, power-down memory, and external control options.
• Motor speeds typically range from 0 to 600 revolutions per minute (RPM).
• Primarily designed for flow rate modulation, allowing users to vary pump speeds and enable continuous operation at a preset rate and flow direction.

Dispensing Peristaltic Pump:

• Suitable for complex liquid quantitative distribution, accurate metering, and precise delivery.
• Operates in various modes, including continuous operation at a set rate and direction, dispensing a desired volume over a preset time, dispensing a desired volume at a preset flow rate, and dispensing a volume for a specified time duration at a certain flow rate.
• Enables setting dispensing cycles with defined time intervals and allows users to calibrate dispensing volumes.

Intelligent Laboratory Peristaltic Pump: 

• Offers versatile functions and features a large color LCD and touch screen interface with intuitive guidance.
• Users can input the desired flow rate directly, providing ease of operation with an intuitive display. 
• Compatible with all working modes of the dispensing peristaltic pump, including dispensing volume calibration and more complex modes (flow ramp up/down, stepped up/down, sine wave etc.)
• Suitable for precision control of flow delivery with accuracy up to ±0.5%.