Peristaltic pump is a kind of rotor positive displacement pump, because its working principle is similar to the digestive tract in the peristaltic way to transport gas, solid and liquid three-phase medium named. Designers and users of hose pumps are primarily concerned with their ability to deliver highly abrasive media. It has no valve and no seal, and the parts in contact with the medium are the inner cavity of the rubber hose, and the rotor of the compression hose is completely independent of the medium. The uniqueness of the hose pump: no other pump has a better self-priming capacity than the hose pump, which can almost produce a perfect vacuum to suck liquid; Conveying gas-containing liquid and foam liquid without gas resistance; Conveying high-viscosity, shear-sensitive media is also a strength.

Peristaltic pump imported silicone tube as peristaltic pump consumables in use may encounter A variety of damage, under normal circumstances 100 rotation pump speed under normal temperature liquid delivery, silicone tube life can reach 200-400 hours, imported A-60-F pump tube can reach 2000-10000 hours. However, in the process of use, because the peristaltic pump hose is not correctly installed or the liquid has a certain corrosion, it will cause premature wear and abnormal wear of the peristaltic pump hose. What is the cause of all this damage?

1. from the damage break to see the silicone pipe damage causes peristaltic pump import

Damaged peristaltic pump hose if it looks like a knife cut is a sharp cut, then it is usually cut by the peristaltic pump head runner and flange edge. The cause of this damage is usually because the hose in the pump head is too long, and when the peristaltic pump head is running, the hose shakes inside the pump head and touches the flange of the runner, and the flange constantly frictions the hose. This process of damage is very fast, usually in about ten minutes will be completely broken. With the damage of the pump pipe, you will see a lot of hose slag produced in the pump.

Solution: ① When installing the pump tube, we must ensure that the pump tube in the pump head is straightened, and there will not be too much hose bed in the pump head. At the same time, the plastic clamp on the hose pump inlet and outlet near the pump head clamp pipe to prevent the peristaltic pump hose from loosening during operation.

2. from the shape of the silicone tube damaged peristaltic pump import to see the cause of damage

The hose appears completely flattened, loses the ability to rebound, the wall thickness of the flexible pipe becomes thinner, and the surface is severely worn. This phenomenon is usually caused by the runner stuck, the surface of the peristaltic pump block contacting the pump tube and the runner have impurities, and the speed is too high. After the runner of the peristaltic pump head is stuck, the runner of the peristaltic pump directly scratches the peristaltic pump hose, which will increase the friction on the surface of the hose, causing the hose surface temperature to rise very high and wear the hose surface, too high temperature will also make the hose lose elasticity, and the temperature generated in the case of more than 140 degrees or even cause the hose to melt and deform.

The solution:

Pay attention to check whether the operation of the peristaltic pump head runner is flexible; Pay attention to clean the surface of the pump head pressure pipe; Appropriately reduce the speed of peristaltic pump operation.