Do you know the reasons for the difference in the flow rate of the precision peristaltic pump?

When you need to process high viscosity, corrosive and abrasive fluids, industrial peristaltic pumps are your best choice. The design of the precision peristaltic pump is very simple. Although its design is very simple, it can provide accurate fluid flow for many important fields. So how does the product work in actual use? The following editor will take you to understand it.

Precision peristaltic pump is a positive displacement pump used to transport various fluids. The fluid flows through the hose in the pump, and the movement of the pump to transport the fluid is called peristalsis. At the same time, according to the compression and relaxation of the hose, the fluid in the pump is sucked or pushed out. It can work normally without fluid and will not cause damage to any parts.

When some customers use it with very high precision requirements, they will find that the flow rate formed by different channels of the precision peristaltic pump is more or less different in actual use. Then after testing the peristaltic pump, we found that:

1. The influence of the pump pipe is the most important aspect. The pump tube is an elastic body, and it is difficult to ensure that each section of the processed pump tube is consistent. Machining parts can guarantee the accuracy level of 1 wire, so it is very difficult to process hoses. There are many factors that affect the size of the hose, such as the discharging speed, the environmental temperature, the difference in the formula, etc., which cannot be completely controlled. Under normal circumstances, the thickness error of the tube wall of the thin tube is plus or minus 0.1mm, and the thicker tube will be plus or minus 0.3mm. Such a large size error will have a greater impact on the flow rate.

2. The overall structure of the peristaltic pump, for parts machined from high-precision machine tools, can generally guarantee an error of about 1 silk. If the tooling and structural design are reasonable, the difference in the pump body structure itself can basically be ignored. If the pump body structure is an injection molded part, the difference will be much larger than that of a machined part. In the same situation, it is difficult to produce products with exactly the same size if 1000 plastic parts are injected and measured on three coordinates after they are completely cooled.