What are the main factors affecting peristaltic pump pressure?

Keywords: peristaltic pump
2019-02-26 11:02
What are the main factors affecting peristaltic pump pressure?

To solve this problem, first of all, we need to understand how the peristaltic pump produces stress. Peristaltic pumps are delivered by squeezing hoses with rollers. To understand this problem, we first need to understand how the peristaltic pump produces stress. A peristaltic pump conveys liquids by squeezing hoses with rollers. In order to prevent liquid from flowing back, it is necessary to keep the sealing property all the time. If the sealing property is available, a certain pressure will be generated accordingly. So what does the magnitude of pressure have to do with? Now let's talk about it.

peristaltic pump

The pressure of the peristaltic pump is determined by the clearance of the pressure pipe. That's why the same type of peristaltic pump applies to the same thickness of the hose wall. The size of the inner diameter and the outer diameter is not the key. As long as the wall thickness is the same (the roller is long enough), the same pump head can be used. But the problem arises. If the same 2.4mm thickness hose is produced between the manufacturer and the manufacturer, there must be some error in the hose. Even if the same manufacturer produces the same hose, there will be an error of <0.1mm. For the pressure of the peristaltic pump, the error of 0.1mm is enough to cause a great pressure difference, that is to say, in the case of a certain gap between the hose and the manufacturer, the hose will not. In the same way, the pressure will be different, correspondingly, the hose life will be different. In practical application, excellent peristaltic pump design will have the function of pressure regulation to adapt to the size differences between different manufacturers and domestic imported pump pipes. This function is very important for pumps with wall thickness less than 2.4mm because very small errors will lead to a large differential pressure. Another application of this function is that it can be used in situations requiring different pressures, which can be achieved by adjusting the pressure. Of course, the pressure range here should be within the peristaltic pump can withstand. The pressure range of peristaltic pump with a wall thickness of 2.4mm or less is about 0-0.25Mpa, and that of a peristaltic pump with a wall thickness of 4.8mm or more is about 0-0.6Mpa.


The main factor affecting the peristaltic pump pressure is the thickness of the hose wall. The thicker the wall thickness, the greater the pressure bearing capacity of the hose, the greater the pressure that can be achieved.

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