Peristaltic Pump Types and Applications

The first peristaltic pump was patented in the year 1855 by J.D. Bradley and Rufus Porter in the US like a “well pump”, and after that by Eugene Allen in the year 1881. A heart surgeon namely “Dr. Michael DeBakey” was developed for blood transfusions in the year 1932 when he was a medical student. Later on, he used this in cardiopulmonary bypass systems. A particular nonocclusive roller pump with soft level tubing was developed in the year 1992 and used in cardiopulmonary bypass systems. Identifying which type of pump to prefer for your use can be difficult. That’s why this article discusses an overview of Peristaltic Pump along with working principle, advantages, disadvantages, and their applications.

What is Peristaltic Pump?

This is one kind of PD (positive displacement) pump mainly used to pump different types of liquids, and these pumps are commonly known as roller pumps. The liquid can be controlled in an elastic tube which is fixed inside a circular pump. A rotor can be attached with shoes, rollers, wipers, and lobes to the outside boundary of the rotor which reduces the flexible tube. When the rotor rotates, the fraction of the tube in compression can be pinched closed. Thus, the liquid can be forced to be travel throughout the tube.

In addition, when the tube opens to its usual state then the liquid flow can be induced toward the pump which is named as peristalsis. This is used in several biological systems like the gastrointestinal tract; block the tube, trapping among them a body of liquid. Then this is transported at ambient force to the pump opening. These types of pumps may run constantly to transport a lesser quantity of fluid.

Peristaltic Pump Working Principle

The peristaltic pump working principle depends on transporting a product throughout a hose, by reducing and increasing. The pump shoes can be connected onto the rotor of the pump to push the liquid throughout the pump. The principle is related to how the human body supplies blood, oxygen, and nutrition.

Peristaltic Pump is great for clean with hygienic where pollution with exposed pump mechanism cannot happen. These are significant pumps while isolating a liquid from the atmosphere, as well as the atmosphere from the liquid. These pumps can be found in an extensive range of industrial applications where harsh & viscous fluids are used.

Types of Peristaltic Pumps

The peristaltic pumps are classified into two types namely hose pumps as well as tube pumps.

• Tube pumps are ideal for low supply rates, and these are completely programmable with the choice of numerous heads.
• The hose pumps are ideal for supplying extremely hard content.
• These pumps can be designed with different kinds of tubing materials. These materials oppose from chemicals as well as high pressures. There are different kinds of tubing materials which include PVC (Polyvinyl chloride), Fluoropolymer, and Silicone rubber.

Features of Peristaltic Pump

These pumps offer excellent pumping solutions, particularly whenever the product being pushed is mainly rough, acidic otherwise thick. These are inexpensive for maintaining because of the lack of seals, valves, & glands but the only maintenance thing is the tube otherwise hose. These pumps are also having a moderate pumping act, perfect for shear responsive polymers & delicate cell cultures. Finally, the only element of the pump is in contact through the liquid being pumped inside of the pump otherwise hose. Assembling and purifying of surfaces in the pump is simple.

• Design is seal-less
• Low protection costs
• Self-priming & dry running
• Gentle pushing act
• High suction pick up
• Scratch resistant
• Solids managing
• Reversible
• No fall
• Precise dosing
• Clean

Applications of Peristaltic Pumps

The applications of these pumps include in a different range of areas wherever liquids are required to flow within fresh as well as germ-free circumstances. The applications mainly include in daily applications also.

• Infusion pumps
• Analytical chemistry testing
• Aquariums
• Pharmaceutical production
• Open heart bypass pump equipment
• Auto Analyzers
• Beverage supply equipment
• Exclusion of dirt
• Decorative waterfalls & fountains
• Industrial dishwasher clean aid machines
• Dialysis equipment
• Carbon Monoxide observers
• Food manufacturing
• Chemical handling
• Water & Wastewater
• Engineering & manufacturing

Advantages

The advantages of Peristaltic Pumps include the following.

• No pollution due to the single element of the pump to get in touch with the liquid being pushed is the center of the tube, and it is simple to purify the inside of the pump.
• It requires less protection, and low cost to maintain due to their lack of valves glands & seals.
• They are capable of handling viscous, slurries fluids.
• The designing of the pump stops backflow without valves.
• These pumps have different control methods like knob control, foot pedal, touch screen control, etc.

Disadvantages

The disadvantages of Peristaltic Pumps include the following

• The tubes which are flexible will be apt to degrade by time & need periodic substitute.
• The liquid flow will be pulsed, mostly at small rotational rates. So, these types of pumps are not much suitable wherever a level reliable flow can be necessary. Another kind of PD (positive displacement) pump must be considered.

Thus, this is all about Peristaltic pumps, and these are used for pumping a different range of liquids. These pumps depend on the pump’s alternating density & relaxation elastic hose or tube, which can be attained by running the elastic tubing throughout a revolving shoe otherwise roller. The name of this pump can be taken from peristalsis, the sequence of power contractions that shifts food throughout the human being digestive system. These pumps function in the same way.