The Impact of Constant Rotational Speed on Pressure in Peristaltic Pumps

The Impact of Constant Rotational Speed on Pressure in Peristaltic Pumps

I. Basic Principle of Peristaltic Pumps

A peristaltic pump, also known as a roller pump or hose pump, is a type of fluid transfer pump that uses a corrugated tube or a corrugated trapezoidal cylinder to squeeze the fluid. The basic principle is to propel the fluid forward through the squeezing action of the corrugated tube or peristaltic tube wall.  

II. Relationship Between Fixed Rotational Speed and Pressure in Peristaltic Pumps

The rotational speed of a peristaltic pump can be adjusted by controlling the motor speed. Generally speaking, a fixed rotational speed of a peristaltic pump corresponds to a fixed pressure. In other words, the pressure and flow rate of a peristaltic pump are mainly affected by factors such as rotational speed and the size of the internal cavity of the pipe.

However, in actual use, due to the influence of factors such as pipe friction, pipe material, and pipe length, the pressure corresponding to a fixed rotational speed of a peristaltic pump is not a fixed value. Therefore, when using a peristaltic pump, it is necessary to make corresponding adjustments and calibrations according to the specific experimental conditions and requirements.

III. Application Areas of Peristaltic Pumps

Due to its advantages, peristaltic pumps are widely used in the fields of medicine, environmental protection, food, chemical industry, and water treatment. Compared with traditional centrifugal pumps and gear pumps, peristaltic pumps can transport high-viscosity, corrosive, volatile, and easily solidifying fluids that are difficult to handle with traditional pumps.

IV. Conclusion

In the actual application of peristaltic pumps, a fixed rotational speed can correspond to a fixed pressure, but the specific value needs to consider the influence of other factors. By optimizing the design and adjustment of the material, size, and length of the transfer pipe, the flow rate and pressure control of the peristaltic pump can be better realized, thereby adapting to different experimental requirements and application scenarios.