what is a peristaltic pump

Peristaltic Pump, also known as constant flow pump, hose pump, bellows pump or torsion pump, is a pump device that works based on the principle of peristaltic motion. The following is a detailed introduction to peristaltic pumps:

 

1. Composition structure

Peristaltic pumps are mainly composed of three parts: drive, pump head and hose (or elastic pipe). Among them, the hose, as the medium for fluid delivery, is isolated in the pump head, and the drive alternately squeezes and releases it through the contour wheel (or squeeze roller) to achieve fluid pumping.

 

2. Working principle

The working principle of peristaltic pumps is based on peristaltic motion, also known as "peristaltic squeezing" or "peristaltic pump action". When the drive drives the contour wheel (or squeeze roller) to move, they exert pressure on the hose on the pump head, compressing and closing the hose, thereby pushing the liquid forward in the pipeline. When the squeeze roller moves away, the hose returns to its original state, forming a negative pressure, thereby sucking in new liquid. This characteristic of peristaltic motion enables peristaltic pumps to achieve precise flow control and pulsation-free fluid delivery.
 

3. Types and functions

According to different functions and needs, peristaltic pumps can be divided into many types, such as speed-regulating peristaltic pumps, flow-type peristaltic pumps, distribution-type peristaltic pumps and customized (OEM) peristaltic pumps. These different types of peristaltic pumps differ in control functions, flow display, flow correction, communication, liquid volume distribution, etc., to meet the needs of different fields and applications.

 

4. Application fields

Peristaltic pumps play an important role in many fields with their unique working mode and excellent performance. It is widely used in medical, laboratory, chemical industry, food and beverage, pharmaceutical, biotechnology, environmental protection and other industries, and can meet the needs of various fluid transportation. Especially in applications with high requirements for liquid purity, such as drug coating granulation and liquid packaging in the pharmaceutical industry, peristaltic pumps have shown their unique advantages.

 

5. Performance characteristics

Peristaltic pumps have the characteristics of no pollution, high precision, fluid isolation in the pump tube, quick replacement of the pump tube, reversible fluid, and dry operation. These characteristics constitute the main competitive advantage of peristaltic pumps, making them widely used in many fields.

 

In summary, a peristaltic pump is a pump device that works based on the principle of peristaltic motion. It has a unique structure, working principle, type and function, as well as a wide range of application areas and performance characteristics.

 

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