What Are the 3 Types of Compressors?

Whether you need a compressor or are just curious about the difference between them, this article will walk you through the differences between Centrifugal, Positive displacement, and Rotary-lobe compressors. Learn about the differences between each type, what they do and why they’re essential. If you have a compressor that doesn’t work correctly, you might want to invest in a different one.

Positive displacement

There are many benefits of positive displacement of different Air Compressor Products Jacksonville FL. They are known for their quality, low cost, versatility, and reliability. Typical applications include LPG plants, auto repair shops, and refrigerators. Bicycle pumps are common uses of positive displacement air compressors. The pistons and diaphragms are the most common types. H

One of the most common positive displacement compressor types is the scroll compressor. The scroll compressor is one of the quietest positive displacement compressors because of its small size. Scrolls also have minimal spacing, making them practical for transferring large volumes. Another popular type of PD compressor is the diaphragm compressor. These devices use a diaphragm to transfer gases. Their rotatory movements make them an efficient choice for gases like oxygen or nitrous oxide. Diaphragm compressors also have a low cost of production and a wide range of pricing.

The lubrication system of positive displacement compressors consists of an oil pump, filter, and heat exchanger. The crankcase serves as a reservoir for oil and is equipped with a lockable drain cock. The drain cock permits the oil to flow through the crankcase, cooling it while it flows directly to the compressor’s moving parts. In addition, a small amount of the oil is diverted to the oil injector. As a result, positive displacement compressors have a high degree of reliability.


Centrifugal compressors have several advantages over other air compressors. They are reliable and require little maintenance. They also offer oil-free air, which is essential in many medical applications. However, they have one major disadvantage: they do not produce very high compression rates, and their high failure rate can lead to stalling, choking, and surging. As a result, they are not recommended for high-volume applications. In addition, the high-volume air they produce is unsafe for human inhalation, especially for people sensitive to air pollution.

Performance maps can be used to analyze the performance of centrifugal compressors. These maps can show a compressor’s constant flow and pressure ratios. This information is helpful in matching the hardware to the end-user’s needs. The results of such studies can help engineers optimize the performance of their air compressors. You can use this information to compare the performance of centrifugal compressors with other air compressor types.

Centrifugal air compressors can be divided into single and multiple-stage designs. Compound compressors have several compartments with suction and discharge nozzles. The impellers face the same direction, while single-stage designs are used in wastewater treatment facilities. Modern centrifugal air compressor configurations have ultra-high-speed electric motors to drive impellers.


The global rotary-lobe compressor market is expected to grow at a compound annual growth rate of over two percent in the coming years. Increasing economic activities and expanding population in Asia-Pacific are expected to drive demand for these units. While rotary-lobe compressors have numerous applications, competition with other types of compressors is expected to hinder market growth in certain areas. In general, manufacturers of rotary-lobe compressors are optimistic about the market’s outlook.

The market for rotary-lobe compressors is moderately consolidated, with several major players operating in the industry.  This innovative product can handle air pressure differentials as low as eighty millibars, as well as higher pressures of 1,500 bar. Moreover, it offers extended pressure ranges and 15 percent energy savings over standard compressors.

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