Peristaltic pump is a pump often used to transport high-viscosity liquids, and its working principle is to drive the contraction and peristalsis of the hose or pipe through pressure changes, so as to achieve the delivery of fluid. As an important part of peristaltic pump, the precision and performance of peristaltic pump have a crucial impact on the overall working effect. The relationship between the thickness and precision of the peristaltic pump tube can be analyzed from the following aspects:
First, the influence of thickness on accuracy
Inner diameter error: The inner diameter error of peristaltic pump tube is one of the important indicators of accuracy. According to international standards, the standard accuracy of the inner diameter error of the peristaltic pump tube should be controlled within plus or minus 0.2mm. The smaller the inner diameter, the higher the requirements for processing accuracy, because the fine tube is more susceptible to various factors during processing, resulting in the instability of the inner diameter size. Therefore, a peristaltic pump tube with a smaller inner diameter usually has higher accuracy requirements.
Wall thickness error: Wall thickness error is also an important factor affecting the accuracy of peristaltic pump tube. The more uniform the wall thickness, the higher the precision of the peristaltic pump tube. For different thickness of the pipe, the difficulty of controlling the wall thickness error will be different. Generally speaking, the wall thickness error of thick tubes is relatively easy to control, while the wall thickness error of thin tubes is more difficult to control.
Roundness and flatness: The roundness and flatness of the peristaltic pump tube will also affect its accuracy. If the pipe is bent or eccentric, the output flow of the peristaltic pump will also be affected. Because of the small size of the fine tube, it is more susceptible to various factors (such as temperature, pressure, etc.) in the processing process, resulting in changes in roundness and flatness.
Second, the impact of thickness on performance
Flow: The thickness of the peristaltic pump tube directly determines the amount of fluid being pumped. Under the same conditions, a pipe with a larger inner diameter can transport more fluid. However, if the inner diameter is too large, it may lead to an increase in the speed of the pump, which increases energy consumption and wear. Therefore, when choosing a peristaltic pump tube, it is necessary to make a trade-off according to the actual flow demand.
Pressure: The working pressure of peristaltic pump also has a certain relationship with the thickness of the pipe. A pipe with a smaller inner diameter may produce higher pressure when transporting fluid due to greater compression of the fluid. This may have an impact on the sealing and stability of the peristaltic pump.
Wear resistance: The peristaltic pump tube will be subjected to wear during long-term use. Smaller bore tubes may be more susceptible to wear due to their smaller contact area with the pump head. Therefore, when choosing a peristaltic pump tube, it is necessary to consider its wear resistance and service life.