Problem and Solution About Silicon Tubing for Peristaltic Pump

The silicone tubing for peristaltic pump is mainly used in draining medicines, nutrient solutions and other special liquids. Due to the vibration caused by the peristaltic pump when extracting liquids, the silicone tube must have enough service life and wear resistance to prevent rupture. So, what should we do when there are some problems with the silicone tubing for peristaltic pump? For example, if the silicone tubing for peristaltic pump is scratched by sharp objects, what should we do?

Issue one about the silicone tubing for peristaltic pump

The silicone tubing for peristaltic pump is scratched by sharp objects. 

Reason

This is usually caused by the rotation of the pump head wheel and the flange edge. The usual cause of this damage is that the hose inside the pump head is too long, and when the peristaltic pump is running, the hose in the pump head swings and contacts the flange edge of the wheel, causing the flange edge to constantly rub and cut the pump tube. This will accelerate the damage process, and usually the tube will be completely broken in a few minutes.

Solution

When installing the card pump tube, make sure that the pump tube inside the pump head is straight and there is not too much hose wrapped inside the pump head. Meanwhile, clip the plastic clips near the inlet and outlet of the hose close to the pump head to prevent the silicone tubing for peristaltic pump from loosening and running off during operation.

Issue two about the silicone tubing for peristaltic pump

The silicone tubing for peristaltic pump is flattened, loses resilience, and has thin walls, with severe surface wear. 

Reason

This phenomenon is usually caused by the jamming of the wheel or some impurities on the surface of the pressure block of the pump head or the wheel, as well as the high rotation speed. After the wheel of the peristaltic pump head is jammed, it will directly scrape the silicone tubing for peristaltic pump, which will increase the friction of the hose surface, causing the surface temperature of the hose to rise sharply and wear the hose surface. The high temperature will also make the silicone tubing for peristaltic pump lose its elasticity. If the temperature exceeds 140℃ it can even cause the tube to melt and deform.

Solution

Pay attention to check whether the rotation of the wheel of the peristaltic pump head is flexible; clean the pressure block surface of the pump head properly; and appropriately reduce the speed of the peristaltic pump.

Issue three about the silicone tubing for peristaltic pump

The pump tube of the silicone tubing for peristaltic pump becomes brittle, hard, loses elasticity, changes color, dissolves and breaks. 

Reason

The silicone tubing for peristaltic pump cannot transport this kind of liquid, which will corrode and dissolve the hose.

Solution

Find the hose material that will not be corroded by the liquid that you cannot transport, and accurately choose the hose according to chemical compatibility experimental data. Or take some samples of the hose for immersion experiments to determine that the hose will not be corroded by the liquid.