Rotary Compressors For The Toughest Gas Streams

Ro-Flo sliding vane compressors are the world leader in handling heavy, dirty and corrosive gases.

blue Rotary Sliding Vane Compressor


So robust and dependable that every one of the world’s 25 largest oil and gas companies have selected Ro-Flo compressors for their vapor recovery and associated gas applications.

blue Rotary Sliding Vane Compressor


So robust and dependable that every one of the world’s 25 largest oil and gas companies have selected Ro-Flo compressors for their vapor recovery and associated gas applications.


Ro-Flo has developed state-of-the-art Performance Software for compressor selection.


Parts are typically shipped the same day they are ordered.


Try Rapid-Ship™ for a 2 week delivery of compressors.


We are THE rotary vane experts.

Worldwide Solutions

From the freezing cold of Northern Alberta and Western Siberia to the searing heat of West Texas and the Middle East, Ro-Flo’s have been the solution. We are experts in rotary vane technology with decades of experience in engineering products to efficiently and reliably handle the worst gas streams worldwide.


Ro-Flo Compressors has recognized the importance of our customer’s emergency needs for years by providing same-day shipping of OEM parts without expediting fees. In an effort to take our customer support to the next level, Ro-Flo Compressors has expanded our emergency response capabilities by adding a new program called Rapid-Ship™.

2 Weeks or Less

Rapid-Ship™ is designed to ship compressors in two weeks or less. Rapid-Ship™ is available on all models and configurations, subject to component availability. Please contact Ro-Flo Compressors to discuss your needs.

When You Need it Most

While the program carries a small premium over standard pricing, users of the Rapid-Ship™ program have found the value of daily production far outweighs any associated costs.

Ready to Get Started?

Please call us at 855-427-6356. We are ready to help.

Red and white logo for Surface Pumps, Inc.

“Always a pleasure doing business with Ro-Flo Compressors. We get such great support when needed and you simply make the best rotary vane compressor. Ro-Flo is a key part of our product offering and we hope to increase business for us both in the future.”

David C, Surface Pumps, Inc.

red and white Glauber Equipment Corporation logo

“We have used Ro-Flo products for well over a decade, and they are the most robust machines we have packaged. Their low-maintenance requirements are only exceeded by the ease of service.”

Peter G., Glauber Equipment Co.

Blue and white logo for Compass company with tagline: Expert Solutions. Execeptional Experiences.

“We have been working with Ro-Flo for over a decade and we count Ro-Flo as one of our top-tier OEM partners. Their compressors are truly designed for VRU service and Ro-Flo is the company we go to for all our VRU opportunities. The reliability and quality of their compressors are excellent and we value and enjoy the relationship we have built with Ro-Flo over the years.”

Marty Holzinger, Compass Energy Systems Ltd.

gas compressors uk logo

“We have worked with Ro-Flo for over 20 years, and over that time their compressors and vacuum pumps have complimented our gas compressor packages around the world. Their suitability for a range of hydrocarbon and toxic gases has made Ro-Flo one of our key suppliers”

Tony Silk, Gas Compressors Ltd.

Recent Articles

Pneumatic Conveying

Pneumatic Conveying Using compressed gas (air) and/or vacuum to move bulk materials such as granules and powders is called pneumatic conveying.  Whether a dilute phase, dense phase or other type of pneumatic conveying system, producers know that pneumatic conveyance is the life blood of their plant.  This is why the cement industry has relied on Ro-Flo compressors and vacuum pumps as the heart of their pneumatic conveying systems for over 40 years. Dilute Phase (Lean Phase) Conveying Arguably, the most the common type of pneumatic conveying is referred to as dilute or lean phase conveying.  It is also frequently referred to as suspension flow.  This type of pneumatic conveying can be characterized by lower pressures, higher velocities and a low ratio of product to air in the conveying stream.  Dilute-phase conveying can be done with positive pressure or vacuum pressure. Dense Phase Conveying Contrary to dilute phase conveying, dense phase conveying is characterized by higher pressures, lower velocities and a high ratio of product to air in the conveying stream.  Dense-phase conveying is done with positive pressure where pulses of air will push slugs of material in succession along the conveying stream. There are other methods of pneumatic conveying, such as air-activated gravity conveying, and one can also have combinations of pneumatic conveying such as medium phase pneumatic conveying.  However, all types of pneumatic conveying rely on a compressor and/or vacuum pump.  Ro-Flo compressors and vacuum pumps are designed to handle all types of pneumatic conveying.  Their model configurations and variable speed capability ensure that the highest efficiency is maintained. Ro-Flo’s pneumatic conveying applications include product transfer, railcar unloading, mixing, bulk storage and dispensing, to name a few.  Ro-Flo’s can be used in conjunction with dry material injection pumps.  Pneumatic Conveying Systems are used in many industries such as mining, [...]

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