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Peristaltic pump and injection pump selection difference

Release date:Sep 13, 2023 Source:PreFluid Pageviews:-
Injection pump and peristaltic pump are two kinds of equipment for precision fluid transmission, using more instruments. Due to the wide range of applications, its models are also diverse.
Injection pump and peristaltic pump are two kinds of equipment for precision fluid transmission, using more instruments. Due to the wide range of applications, its models are also diverse. Some users, when using this device, are often unable to distinguish what the two devices should pay attention to when choosing and what the difference is. The following Pry Fluid will explain to you.
The difference of working principle between injection pump and peristaltic pump
The difference between the working principle of peristaltic pump and injection pump is that the sampling method between the two is different. The injection pump injects and extracts the liquid through the piston movement (first injection and then extraction, first injection and then continuous circulation); It is generally more accurate and easier to operate than peristaltic pumps. The peristaltic pump uses a roller to squeeze the peristaltic pump silicone tube, and uses the elasticity of the hose to promote the inlet pressure of the silicone tube, so that the liquid is filled with the silicone tube to achieve the purpose of conveying the liquid.
Selection difference
Injection pump syringe: is one of the main components of the injection pump. Before selecting the injection pump, determine the specifications of the injection pump. Drive: Determined according to the desired liquid and desired functional mode. For example: liquid distribution mode, what environment to use, multi-channel injection or single-channel injection, whether liquid flow is required, the accuracy of each injection.
Peristaltic pump flow selection: flow is one of the important factors in choosing the pump model, and different flows correspond to different pump heads and hoses. Silicone tube selection: The peristaltic pump uses a wide variety of hose, most of the liquid delivered can use peristaltic pump silicone tube, but some liquids have special chemical properties, so it depends on the chemical properties of the liquid, liquid temperature and suction range requirements.
Peristaltic pump head: The pump head is also more important as one of the three components of the peristaltic pump (the other two are the drive and the hose). When choosing the pump head, in addition to paying attention to the above flow rate, it should also consider whether it is convenient to replace the silicone tube, whether it requires multiple channels, and whether the working environment has special requirements.
Driver: The driver is the power component of the pump, the higher the speed, the greater the flow. This is different from injection pumps because they work differently. The driver on the peristaltic pump should also pay attention to whether some special functions are needed, such as speed adjustment, flow adjustment, distribution mode, etc. Another point is similar to the injection pump, that is, the working environment requirements, whether there are dustproof, waterproof, explosion-proof requirements.
Compare the advantages and disadvantages of peristaltic pump and injection pump
The advantages of peristaltic pump: simple structure, easy maintenance, low cost. The consumable is the hose, which is usually maintained and can be used for about 2 years. Disadvantages: Sampling is not as accurate as injection sampling. Because there are many unstable factors in peristaltic pump sampling, one is that peristaltic pump motor is affected by voltage instability, resulting in rotation instability, and the other is that the compression degree of the pump tube will lead to changes in the sampling amount.
The advantages of the injection pump: the injection accuracy is higher than that of the peristaltic pump, which can realize the automatic preparation function of the standard curve and improve the work efficiency. Disadvantages: syringe wear fast, short service life. In addition, if the syringe inhales air, it will remain in the tube, which is difficult to eliminate, and the injection amount will be inaccurate.
【Tag of this article】:Peristaltic pump and injection pump selection difference
【Editor】:PreFluidall rights reserved:https://www.prefluid.netPlease indicate the source

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