The laboratory is an earlier industry to use peristaltic pumps, because the industry needs to transport a variety of liquids, including acid and alkali solutions, organic corrosion solutions, etc. So we need a pump that can adapt to this liquid. Next, we will introduce the reason why the laboratory chooses the peristaltic pump.
Liquid requirements for laboratory transfer:
1.It can transport various inorganic salt solutions, acid and alkali solutions, organic corrosion solutions, etc.
2.The area of the experimental bench is generally small, so the pump type used should be as small as possible.
Reasons for selecting peristaltic pump:
1.The pump has a strong self-priming capacity and can easily draw liquid directly from beakers, test tubes and other containers. For other pump types, the pipeline shall be filled with liquid before use. If the liquid is highly corrosive, it is more dangerous to use other pump types.
2.The pump has a good self sealing property. As long as the peristaltic pump stops working, the liquid will stop transmitting immediately, and there will be no dripping or backflow due to the liquid level difference of the delivered liquid. The pipeline design is extremely simple, and no accessories such as solenoid valve or one-way valve are required.
3.The pump has good flow stability. The pressure change of the outlet pipeline will hardly affect the flow of the pump, which is a performance that other pump types do not have. In the test, the peristaltic pump has a wider applicability.
4.The liquid transmission of the pump has good linearity. During the experiment, it is necessary to know the liquid transmission velocity at any time. Sometimes it is difficult to install a flowmeter. At this time, the linear characteristics of the peristaltic pump need to be used.
5.The pump can transmit strong acid, alkali and corrosive liquids. Because the liquid only flows through the hose when the peristaltic pump transmits liquid, so as long as the pump pipe is made of corrosion-resistant materials, the peristaltic pump can transmit, which is beyond the reach of most other pump types. At present, the materials of peristaltic pump pipe are various, and almost can transmit most of the known liquid.
6.The pump can transport high-temperature liquid, and the peristaltic pump pipe can withstand a temperature of more than 100 ℃. Among them, the fluororubber pipe can withstand a high temperature of more than 200 ℃, which is beyond the reach of most other pump types.
7.The pump can transfer various liquids by replacing a new hose, which will not cause cross contamination and will not adversely affect the test results. Most other pump types need to be disassembled for cleaning, which is almost impossible if completely cleaned.
8.The pump can transmit air and can operate for a long time, which is not available for most other pump types.
9.The whole peristaltic pump has many functions, such as adjusting the flow rate, timing and quantitative filling, and customizing the special use functions according to the user’s needs. The peristaltic pump is very rich in the integrated application of this multi-function.
Matters needing attention:
1.When using the peristaltic pump pipe, the hose should be attached to the inside of the pump head to avoid the pipe being pulled.
2.Before use, clean the contact surface between pump head and hose to ensure smoothness.
3.Before use, it is necessary to check the liquid transported to see if it has corrosion and other characteristics, and what materials will react with it.
4.The storage environment should be a sealed environment, mainly a cool environment, which can effectively prevent sun exposure and rain.
5.Avoid putting chemicals together, especially in chemical industry, so as to avoid some losses.
6.The stored peristaltic pump hose can be put in the original package. If there is a chuck stuck, it can be better used if it is well stored.