Peristaltic pump tube is the core part of peristaltic pump, its service life determines the cost of peristaltic pump. Generally speaking, the factors affecting its service life in addition to the quality of the peristaltic pump tube itself, the way of compression, compression force, compression times and thermal fatigue aging caused by friction and peristaltic pump tube service life has a great relationship.
The main factors affecting the life of peristaltic pump tube are as follows:
1. Hose outlet pressure, pipe resistance and other relevant factors such as outlet pressure.
2. Temperature of conveying medium
High temperature medium will accelerate the aging degree of hose.
3. Pump speed
This is one of the decisive factors affecting the peristaltic pump tube, and its speed is inversely proportional to the life of the peristaltic pump.
4. Compress the force of the hose
Moderate strength, otherwise too small force will lead to medium backflow, fluid control is not accurate, but the pressure is too large, will greatly shorten the service life of the peristaltic pump tube.
5. How to compress the hose
The compression process of the hose is generally divided into large diameter roller, small diameter roller and slipper 3 kinds. Usually, the large diameter roller is stronger than the small diameter roller, and the small diameter roller is stronger than the slipper.
6. Compatibility of pump pipe material and conveying medium
The choice of peristaltic pump tube must be matched with the medium, different media with different pump tube material, to ensure that there is no reaction between each other, so as not to affect the purity of the medium. Pump pipe materials generally include silicone pipe, PVC pump pipe, thermoplastic rubber pump pipe, fluorine rubber hose and so on.
7. Whether lubricant is added
Coating lubricant on the outer wall of the pump pipe can effectively reduce the friction of the peristaltic pump pipe and prolong its service life.
8. Operation status of pump pipe
It can be divided into intermittent exercise and continuous exercise. The service life of the peristaltic pump tube must be longer than that of continuous movement because the intermittent movement gives the tube sufficient springback setting time.
There are many factors affecting the peristaltic pump tube, so even if the same product in different environments, its service life will have a big gap. In general, the service life given by the pump pipe manufacturer is based on the experimental test data of the specific pump head and speed with water as the conveying medium. Customers can reasonably determine the service life of the pump pipe according to their own use environment, so as to replace it in time and avoid unnecessary losses.
