Types of Vacuum Pumps for a Laboratory

If your business requires a lab, make sure you stock all the equipment you need to get started. Every laboratory in the world has different kinds of vacuum pumps. Understanding the many types of vacuum pumps, you require for your lab's various uses is crucial to choosing the right one for your operations. Different vacuum pumps are used more often than others. The three most popular vacuum pumps used in laboratories nowadays are described in the following paragraphs.

Understanding Vacuum Pumps

Different outcomes can be achieved by various types of vacuum pumps. Vacuum pumps are essential because they enable you to obtain accurate and dependable results. For instance, the mass spectrometry examination of molecules would be meaningless without the usage of a vacuum pump. Because of this, it's important to understand which vacuum pumps to utilize while doing sophisticated chemical methods.

● Rotary Vane Vacuum PumpRotary Vane Vacuum Pump

Due to its lower initial cost, smaller weight, and ability to be used for a variety of applications, traditional Rotary Vane Vacuum Pumps are frequently used. If solvents are not stopped or recovered before entering the Rotary Vane vacuum pump, they may compress in the oil and seriously harm the vacuum pump inside. When using the Rotary Vane vacuum pump, the expelled vapors must be captured upstream of the device. On the other hand, the rotary vane vacuum pump has a low ultimate vacuum and a large discharge rate. This makes them ideal for freeze-drying. Due to the ease with which the vapors may be trapped before they reach the vacuum pump. Rotary Vane pumps are extremely advantageous for watery samples and solvents with high boiling temperatures.

Diaphragm Vacuum Pump

With the help of pulsing valve opening and shutting, these dry vacuum pumps move air. With this configuration, oil is not needed. The polytetrafluoroethylene used in its manufacturing makes the vacuum pump resistant to corrosion inhibitors and vapor deterioration. Their servicing and maintenance costs are significantly cheaper although they may be more expensive initially since no oil consumption is necessary. Although diaphragm vacuum pumps can handle extremely viscous liquids and a wide variety of samples, their uses are limited. These vacuum pumps are a fantastic alternative to concentration and evaporation since they can handle nearly any sample type, including those manufactured from a range of solvents and acids.

● Scroll Vacuum Pumps

The other dry vacuum pumping method frequently used in laboratories is scroll vacuum pumps. To compress the air and vapors and transport them toward the exhaust, they work using two interlaced spiral scrolls that move unconventionally against one another. Scroll vacuum pumps have a greater vacuum range than diaphragm vacuum pumps, making them desirable for applications requiring high flow rates. The two scrolls have a tip seal on each that keeps vapors on the right path. Since the tip seal is a worn component, it must be replaced on occasion. For particular applications, the tip seal's tendency to release tiny particles as it ages might be troublesome. While some manufacturers expressly advise against using scroll vacuum pumps in harsh environments, other types' corrosion resistance has increased over time. Scroll vacuum pumps do not have precisely the same corrosion resistance as diaphragm vacuum pumps. The scroll vacuum pump, however, provides a small, more portable option to oil-sealed and diaphragm vacuum pumps with faster pumping rates for situations where these circumstances are not a concern.

Final words

Vacuum pumps are an essential piece of laboratory equipment. Consider the needed maximum vacuum, corrosive chemicals, and hazardous oil disposal before deciding which type of vacuum pump will work best for your lab. Finally, evaluate several models according to the cost, weight, noise level, and performance. Contact Vacuum Pumps for Sale if you need more help deciding which one fits your needs best.