Analysis of tube for peristaltic pump

In many industries such as pharmaceutical and laboratory industries, peristaltic pump tubes are used for fluid transmission or filling. However, silicone tubes have both advantages and limitations in use, so in order to better use the pump, we need to understand these aspects. Next, Lead Fluid will introduce them to you.

Material of Peristaltic Pump Tube

The material of silicone tube (take silicone tube as an example) is generally organic silicone, which is made of polydimethylsiloxane (PDMS). This polymer has high strength and high stability (including thermal stability and chemical stability). Therefore, organic silica has hydrophobicity, and the contact angle of water on the polydimethylsiloxane (PDMS) model surface is 108°. Due to this hydrophobicity, no reaction occurs between organic silica and aqueous medium in the absence of surfactant, only in strong alkaline or strong acid environment.

Appearance Characteristics of Silicone Tube

The appearance of silicone tube is usually semi-transparent, which is convenient for users to observe the transmission of fluid. This is because the tube is made of organic silicone polymer and amorphous silica, and their refractive indices are different, and they cannot be mixed, so they are usually in a semi-transparent state.

The influence of tubes on the peristaltic pump

The pump tube is a part of the pump used to transmit liquids, and also the part in contact with the liquid. The tube has certain elasticity, wear resistance, heat resistance, cold resistance and certain pressure bearing capacity, mainly used to transmit liquids and gases. From the above, we can understand that the worm pump tube is the channel to transmit liquid. What kind of liquid the worm pump can transmit, such as overheated, overcooled and corrosive liquids, all have certain requirements on the material of the tube.

If the material of the tube is different, it may cause certain display to the liquid transmitted, or even pollution. In terms of flow, when we make choices for pumps, we certainly have requirements for flow. In addition to the influence of the drive and the pump head, the worm pump tube is also essential. The size of the tube (such as diameter and thickness) has a direct effect on the flow rate. Only the matching model size can make the worm pump reach the expected state. The wall thickness of the tube affects the elasticity of the tube, and the elasticity affects the service life of the tube. Generally, it is suggested to choose a pump with lower speed under the premise of meeting the flow rate.


1. When using a peristaltic pump tube, make sure to fit the tube inside the pump head to avoid pulling the tube.

2. Before use, clean the contact surface of the pump head and tube to ensure smoothness.

3. Before use, check the liquid to be transported to see if it has corrosive or other characteristics and what materials will react.

4. The storage environment should be sealed, mainly in a cool environment, which can effectively prevent sunlight exposure and rain.