Peristaltic Pump Applications

Peristaltic pumps are one of the fastest growing positive displacement pump types on the market. However, many people still do not know the technical principles of this pump and its advantages. Peristaltic pumps are also called pump tube pumps. In the past, these pumps were almost exclusively used in laboratories.

However, the pump has been redesigned to increase flow and pressure. Today, a large number of peristaltic pumps have been successfully used in the areas of chemical process control and production.

The popularity of peristaltic pumps can be attributed to their design. The design uses an electric motor to drive a set of rollers. Rollers successively roll over the flexible pump tube, repeatedly compressing and releasing it.

This compression action creates avacuum that draws fluid through the pump tube, completing the pumping process. Since only the pump tube is the part that passes water, this pump is easy to maintain, clean and clean.

This design brings several advantages, making peristaltic pumps suitable for a variety of complex and difficult applications.

The advantages are:

No pollution

Easy to use

Low maintenance

Self-priming

Various pump tubing materials

Smooth pumping process

Can pump liquids, gases, multi-phase mixtures and viscous fluids

High operating efficiency

No pollution

The design configuration of the peristaltic pump can allow the conveyed fluid to always flow through the pump tubing. This is important for two reasons:

First, the fluid does not contaminate the pump, and second, the pump does not contaminate the fluid. This is an advantage when transferring chemically aggressive fluids or high purity fluids.

Since the fluid does not come into contact with gears, sealing elements, diaphragm elements or other moving parts, the selection of a chemicalA Fully compatible pump for a particular solution is as simple as selecting a pump tube that is chemically compatible with the solution.

Because only the pump tube is the part that lets water through, there is no need to worry about corrosion, wear and tear. the loss of other parts. Peristaltic pumps are therefore the ideal solution for transporting abrasive fluids.

The moving parts of other types of pumps are subject to wear when transporting this type of fluid, resulting in frequent replacement of parts smentioned above and increases the risk of component failure.

Peristaltic pumps have also been used successfully to transfer solutions that tend to settle or harden. In this case, it is not necessary to completely disassemble the individual parts for cleaning, it is enough to flush or replace the pump hose.

Easy to use

Peristaltic pumps are very easy to use and many pumps are ready to use right out of the box. Some models have interchangeable pump heads that are hand-tightened. Nails and installs in minutes.

Advances in engineering have led to new design configurations that reduce pump tubing changes to seconds.

In addition, most pumps are simple to control, with dials or keypads for speed control and intuitive menus.useful and easy to understand for programming more complex tasks.

Low maintenance

Most peristaltic pumps require very little maintenance to stay in good working order. Pump tubing should be replaced periodically to prevent leaks or reduced flow. The switching process usually only takes a few seconds, which is an advantage when using the same pump to pump or dispense different chemical solutions.

After a solution change, only the pump tubing needs to be replaced, and the pump can be back up and running in minutes, saving time and effort. workforce. Moreover, the same pump can be used for different chemical processes, which saves a lot of money.

Peristaltic pumps require minimal maintenance other than replacing pump tubing. For thes pumps driven by brush motors, the brushes must also be replaced periodically.

Typically replaced approximately every 3000 hours. Many pumps are designed with a high level of protection. After transferring dirty liquids, the pump hose can be removed for quick and thorough cleaning.

Because the only pump tube is the wetted end, peristaltic pumps are free from the wear and tear of moving parts common to other pumps.

This eliminates the expense of frequent replacement of associated components, labor required for maintenance and repair, and costly downtime caused by failure of components. components.

Self-priming capability

When activated, the peristaltic pump generates sufficient suction to draw liquid from the liquid source into the pump tube, eliminating the need for the process tofilling the pre-priming pump and the suction pipe.

It also eliminates the need for submerged water filling, so it is no longer necessary to place the pump below the level of the liquid source, allowing more flexibility in the location of the pump and allows the pump to move at will. In addition, the peristaltic pump will not lose water filling, which helps to avoid unnecessary downtime.

Pump tubing material

Since the pump tubing is the only part in contact with the pumped fluid, only the tubing material suitable pump.

The wide variety of pump tubing materials available include silicone tubing, thermoplastic tubing, Viton tubing, and even stiffer Teflon tubing, which means that there is always something to find. that can meet the most complex and difficult fluid pumping needs.THE.

Many styles of pump tubing also meet USP, FDA, USDA, and/or NSF performance authority requirements.

This makes peristaltic pumps suitable for pumping a wide variety of fluids, from sensitive cell culture fluids to industrial solvents, and also allows the sameOne pump to be used in many occasions - just replace the pump tube.

Gentle pumping process

Peristaltic pump design configuration creates a gentle squeezing action to pump fluid smoothly.

The fluid does not undergo any mechanical crushing or shearing action with gears, valves or other components, leaving the solid components of the fluid, such as cell walls and particles.

Therefore, peristaltic pumps are particularly suitable for transporting sensitive fluids, sludges or suspended solids. In addition, the moving parts are separated from the fluid to prevent abrasion caused by the fluid.

Can pump a variety of fluids

In addition to having sufficient self-priming pumping capacity, the vacuum developed in the peristaltic pump is enough to pump large, most viscous fluids.

Many viscous fluids that are difficult to pump with other types of pumps are not a problem with peristaltic pumps. Most manufacturers have specified various specifications for the peristaltic pumps they manufacture, including pumping viscous fluids.

Some pumps can only handle liquids, which are used to cool and lubricate moving parts. The peristaltic pump can transport multiphase liquids, gases and mixed fluids.

If air bubbles are present in the fluid (e.g. gases released from thesolution), they can simply be pumped with the liquid part without clogging. Therefore, the peristaltic pump can run dry without damage.

High operating efficiency

Peristaltic pumps are extremely efficient to operate. This advantage is particularly evident when transporting aggressive chemicals. In this case, other types of pumps require chemical resistant treatment of their multiple water passing parts.

When pumping, transferring or dispensing these types of chemicals, purchasing peristaltic pumps with chemically compatible pump tubing rather than expensive pumps, for the wise.

The same pump can pump different solutions just by changing the pump hose, so. The same pump can be used for multiple purposes without having to purchase multiple dedicated pumps.

In addition, it requires lessmanual labor and lower maintenance costs than other types of pumps. While expanding the scope of application, the total cost of use is reduced.

Limitations

Despite their many advantages and benefits, peristaltic pumps have their limitations. Since peristaltic pumps use flexible pump tubing, the pressure they can withstand is limited. As the pressure inside the tube increases, the pump tube bulges outward, pressing against the rollers and causing wear.

Pump tubes can burst at higher pressures, potentially endangering nearby personnel. However, advancements in technology have resulted in a new generation of flexible pump tubing that resists the tendency to bulge due to high pressure.

Peristaltic pumps have always been limited by their low flowVolume:Only a few liters of fluid can be delivered per minute. However, with the successful development of new models, large-diameter pump tubes or reinforced pump tubes have been adopted, and the flow rate of peristaltic pumps has greatly increased.

The maximum flow of some industrial pumps has reached 108 gallons per minute, which can meet the needs of large flow pumps. As a result, peristaltic pumps are a viable alternative for companies with pollution-free, low-maintenance pumping needs.

Some applications don\'t want the pulsation inherent in the peristaltic pumping process. This pulsation can be reduced by increasing the number of rollers. Adding a pulsation damper can also help reduce this pulsation.

Conclusion

Peristaltic pumps are gaining acceptance in more and more applications.ons and industries than ever before. Its application has gradually developed from being used only in the laboratory to an essential and reliable component in many industrial processes.

The wide application and ease of use of peristaltic pumps allow them to meet a variety of complex and difficult fluid dispensing needs. As the demand for pumps continues to grow worldwide, the application prospects for peristaltic pumps will be limitless.

Prev: Hydrogen Generator Usage Precautions