+86 151 7627 9038Pressure range of peristaltic pump and design principle of pressure range of peristaltic pump
Provide： Source： Time：2018-07-02
How much pressure does a peristaltic pump usually reach? To understand this problem, we first need to understand how the peristaltic pump generates pressure. The peristaltic pump is by the roller extrusion hose to transport the liquid, in order to avoid the liquid reflux, it is necessary to keep the seal, with the seal, the corresponding pressure will occur. So what is the pressure and what it has to do with it? It is the tightness with the pressure pipe pressure, the looser the pipe, the smaller the pressure, the longer the life of the hose, the looser to the unsealed time, there is no pressure; on the contrary, the tighter the pressure pipe, the greater the pressure, the bigger the hose will be tired and worn on the hose, and the number of the soft pipe will be short.
To sum up, the pressure of the peristaltic pump is determined by the gap of the pipe. This is why the wall thickness of the hose is the same for the same type of peristaltic pump. The size of the inner diameter and outer diameter is not the key, but the same type of pump head can be used only with the same thickness of the wall (long enough for the roller). But the question is, assuming the same 2.4mm wall thick hose, between the manufacturer and the manufacturer, there must be a certain error in the hose produced. Even if the hose produced by the same manufacturer, there will be an error of + 0.1mm. In terms of the pressure of the peristaltic pump, this 0.1mm error is enough to cause a great pressure difference, that is to say, in the case of the pressure of the peristaltic pump. When the pressure pipe is void, the hose will have different pressure and the number of hoses will be different.
In practice, excellent peristaltic pump design will be equipped with pressure regulating function to get accustomed to the scale differences between different manufacturers, domestic and imported pump pipes. This function is very important for the pump with a wall thickness less than 2.4mm, because a small error will lead to great differential pressure. Another use of this function is to be able to be done with pressure conditioning on occasions with different pressures, of course, the size of the pressure here is within the scale of the peristaltic pump.
The pressure range of the peristaltic pump with wall thickness of 2.4mm or less is about 0-0.25Mpa. The pressure of the peristaltic pump with wall thickness of 4.8mm and above is about 0-0.6Mpa. The main factor affecting the peristaltic pump pressure is the thickness of the hose. The thicker the wall is, the greater the pressure of the hose will be, and the greater the pressure will be.
If the customer needs pressure more than 0.6Mpa, do not advocate the use of peristaltic pump, the main strength of the peristaltic pump is health, no cross pollution, but in the treatment of very large pressure problem is not better than the plunger pump and gear pump, in which the plunger pump is the most pressure of all pumps can reach the pressure of a pump.
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