Why is the peristaltic pump called constant current pump?

The peristaltic pump can be called a constant current pump, which is a kind of constant current pump, because the conveying precision can reach up to 0.5%, so it plays a role of constant current. The specific analysis is as follows:

The principle of the peristaltic pump is that the runner presses the pump tube and rotates to push the fluid in the tube forward to generate fluid flow, just like using two fingers to squeeze a hose filled with liquid, with the fingers When moving, a negative pressure is formed in the tube and the liquid flows. Therefore, the peristaltic pump is a positive displacement pump, and the liquid in the pump tube is pushed out by the runner of the pump head. After the runner leaves, the pump tube will stably rebound and suck in new liquid. Our peristaltic pump head produces a constant flow rate per revolution, and the flow rate will increase by the same amount every time the speed is increased per unit time. Therefore, the flow rate generated by the peristaltic pump at a specified rotational speed is constant. Since the peristaltic pump has this characteristic, the user often refers to the peristaltic pump as a constant current pump.

The peristaltic pump is a kind of constant flow pump, because there are many kinds of pumps that can realize the function of constant current, such as diaphragm pump, plunger pump, screw pump, etc., so the peristaltic pump is only one type of constant current pump.

The peristaltic pump as a constant current pump has the following advantages:

1, clean and non-polluting: the fluid only passes through and contacts the peristaltic pump hose.

2, high precision: constant current, reproduction accuracy of up to 0.5%, flow can be precisely adjusted.

3, low shear: It is an ideal tool for conveying shear sensitive and aggressive fluids.

4, corrosion resistance: can transport a variety of fluids, such as organic melting machines, corrosive liquids.

5, can be idling, dry running: can also be transported air or gas-liquid solid three-phase mixed transport.

6, with self-priming ability: can be self-priming, no need to pump, no need to empty.

7, with a cut-off valve function, no siphon, no seals, a shut-off valve and a check valve function.

8, two-way conveying function: the direction of the pump pump can be changed to achieve the reverse pumping and suckback function.

9, maintenance is simple: just replace the peristaltic pump hose, no valve and seal replacement.

10, can withstand higher temperatures: peristaltic pump can continuously deliver liquids of 80 degrees Celsius.

When choosing a constant flow pump, according to the user's transportation needs, if only the stable delivery function of the constant current pump is needed, there are many kinds of pumps to choose from. It is suitable for your own needs to choose a product that is suitable for your own process and most economical. product.