Nanjing Runze Fluid Control Equipment Co., LTD.
Nanjing Runze Fluid Control Equipment Co., LTD.
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Factors to Consider When Choosing a Laboratory Peristaltic Pump

Understanding laboratory peristaltic pump


A laboratory peristaltic pump uses a motor to drive a set of rollers to rotate. The rollers successively crush the soft pump tube, repeatedly compressing and releasing it. This squeezing effect creates a vacuum, sucking in the fluid and passing it through the pump tube, completing the pumping process.


The laboratory peristaltic pump uses a large-screen dot-matrix LCD display to show the operating menu and parameters, setting menu, and flow rate and speed are displayed on the same screen, which is concise, intuitive, and user-friendly. It has a flow rate correction function, which can be used to correct flow rate deviations to meet users' requirements for flow rate accuracy. Moreover, the laboratory peristaltic pump also has multiple control modes. So what aspects should be considered when choosing laboratory peristaltic pumps?


What aspects should be considered when choosing a laboratory peristaltic pump?


  • The quality of the laboratory peristaltic pump itself determines the efficiency of its work, just like the atrium in the circulatory system.

  • Pump head: The pump head of the laboratory peristaltic pump also has a great impact on the overall operation, especially for high-precision liquid transfer.

  • Pump tube: The material of the soft tube of the laboratory peristaltic pump determines the filling accuracy and quality.

  • The pump body of the laboratory peristaltic pump determines the performance, while the pump tube plays a positive role in performance. The soft tube can determine the product's working life and work efficiency, which is an important factor.

  • Regarding the pump tube parameters, the difference between the inner diameter and outer diameter determines the flow rate of the fluid being transferred. The larger the difference, the greater the fluid flow rate.

  • The selection of the material of the laboratory peristaltic pump's pump tube should be based on the industry it is used in. If the liquid to be transferred is corrosive, a corrosion-resistant pump tube should be chosen. If it is a high-temperature liquid, a heat-resistant pump tube should be chosen. If it is a conventional liquid, an ordinary pump tube can be chosen.

  • The inlet of the pump tube should be as short as possible, and the connection and diameter of the pipeline should not be lower than the size of the card tube installed on the pump head. If the inlet pipeline of the laboratory peristaltic pump is too long or the diameter becomes smaller, it will cause excessive suction resistance at the inlet, and the rebound of the pump tube will be obstructed. As a result, the actual flow rate of the liquid being transported will be reduced. Similarly, if the outlet pipeline diameter becomes smaller or the length is too long, because the discharge pressure is usually small, when the discharge resistance is too large, it will cause a decrease in the output flow rate.

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