A peristaltic pump is a type of mechanical pump commonly used in laboratory settings. It operates by using a rotating set of rollers or shoes to press against a flexible tube, causing the liquid or gas inside the tube to be displaced and moved through the pump.
Peristaltic pumps are known for their ability to handle delicate or shear-sensitive fluids, as the fluid is only in contact with the inside of the flexible tubing rather than any mechanical parts of the pump. They are also relatively easy to maintain, as the tubing can be easily replaced without the need for disassembling the pump.
There are several different types of peristaltic pumps, including rotor-based pumps and roller pumps. Rotor-based pumps use a rotating cylinder with teeth or protrusions to press against the tubing and move the fluid, while roller pumps use a series of rollers that rotate around a central axis to press against the tubing.
Peristaltic pumps are used in a variety of laboratory applications, including cell culture, chromatography, and chemical dosing. They are also commonly used in industrial settings for tasks such as water treatment and the transfer of hazardous or corrosive fluids.
Application Of Peristaltic Pumps
Liquid peristaltic pumps are commonly used in industrial settings for tasks such as:
Water treatment: Peristaltic pumps can be used to accurately meter chemicals or other additives into a water treatment system.
Chemical dosing: These pumps can be used to dispense precise amounts of chemicals or other fluids in industrial processes.
Food and beverage processing: Peristaltic pumps are often used to transfer food and beverage products, such as juices and syrups, without damaging them.
Pharmaceutical manufacturing: These pumps can be used to transfer pharmaceutical products or ingredients without contaminating them.
Printing and coating: Peristaltic pumps can be used to dispense inks, paints, and other coatings in printing and coating applications.
Oil and gas: Peristaltic pumps can be used to transfer oil, gasoline, and other petroleum products in the oil and gas industry.
Agricultural and horticultural irrigation: These pumps can be used to dispense irrigation water in agricultural and horticultural applications.
Plating and finishing: Peristaltic pumps can be used to dispense plating solutions and other chemicals used in metal finishing processes.
In conclusion, peristaltic pumps are a useful tool for handling delicate fluids in a variety of settings. They offer a simple and efficient means of moving liquids and gases without the need for frequent maintenance or the risk of damaging sensitive materials.
How the peristaltic pump tubes are sized
Peristaltic pump tubing is sized based on the inner diameter (ID) and outer diameter (OD) of the tube. The ID is important because it determines the flow rate of the pump. A larger ID will allow more fluid to pass through the tube per revolution of the pump, while a smaller ID will allow less fluid to pass through.
The OD of the tubing is also important because it determines the size of the pump and the amount of pressure that can be applied to the tubing. A larger OD will require a larger pump and be able to withstand more pressure, while a smaller OD will require a smaller pump and be able to withstand less pressure.
When selecting tubing for a peristaltic pump, it is important to choose a size that is appropriate for the application. Factors to consider include the viscosity and abrasiveness of the fluid, the desired flow rate, and the pressure requirements of the system. It is also important to choose tubing that is compatible with the materials being pumped and the pump itself.