Ro-Flow Compressors – Low Pressure Compressor

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Ro-Flow Compressors – Low Pressure Compressor

About the Company:

In 1930, Allis Chalmers created the Ro-Flo Compressor. Originally developed as a plant air compressor, Ro-Flo later became recognized as a world leader for compressing wet and sour gases.

The Product Becomes the Company

Over the years, Allis Chalmers’ compressor products changed hands a few times, and the Ro-Flo sliding vane technology found itself owned by a Fortune 500 company. Several of the Ro-Flo engineers thought the product line was being held back by the processes and protocols of the large corporate structure. So, in 2007, those engineers bought the technology and started the ‘Ro-Flo Compressors’ company. A smaller, more flexible and responsive organization.

Generations of Experience
Ro-Flo’s knowledgeable staff has decades of application experience. When you contact Ro-Flo, you will be speaking with a compression expert, who will understand your needs. Knowledge, experience, and responsiveness ensure your success.

Worldwide Applications
Ro-Flo compressors are in operation in over 60 countries around the world.

About the Solution:

Biogas production and consumption are increasing in a world concerned with both the cost of energy and the environmental impact of energy production and waste disposal. Biogas production facilities, like digesters, landfills and wastewater treatment plants require robust equipment to handle the wet, acidic gas produced.

Organic Waste Digester

One type of organic waste is manure. Manure digester gas is one of the fastest growing sources for RNG and a tough gas to handle. As bacteria breaks down the organic matter in the lagoon, the methane that is produced typically contains high levels of H2S, CO2 and heavily saturated with H2O, these conditions are easily handled by a Ro-Flo.

Ro-Flo’s low pressure rotary sliding vane gas compressors are suitable for a wide variety of applications. Ro-Flo low pressure gas compressors excel in handling acid, sour, and wet gases. But no matter the application, Ro-Flo sliding vane compressors are an excellent choice for their reliability and low maintenance needs.

When a sliding vane compressor does need service or maintenance, it’s a simple one-man job. A full-rebuild can typically be completed in a single shift. This makes Ro-Flo low pressure gas compressors cost effective, reducing operational and maintenance expenses. Ro-Flo’s low pressure gas compressors have a maximum allowable working pressure of 80 psig (5.5 barg) and a maximum allowable operating temperature of 350ºF (176ºC).

Ro-Flo’s engineering team will be happy to assist in the sizing and selection of the compressor best suited for your needs.

Ro-Flo Compressors 2540 W. Everett St. Appleton , WI USA (920) 428-5968 Visit Company Website

Solution Type

  • AD Support


  • Equipment Vendor


  • Energy
  • Other


  • GHG
  • Odor
  • Pathogens

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Solution Strengths, Weaknesses and Critical Indicators

Anaerobic Digester Associated Technology:

NOTE: There are several technology types that are used as part of an integrated manure management system that includes an anaerobic digester and are not applicable to manure management in other cases. The impact of these technologies on the critical indicators are represented as those of an entire anaerobic digester system.


  • Long usable life and can be run reliably
  • Creates energy and generates environmental credits
  • Requires proper preparation of the feedstock
  • Requires other technologies for energy utilization
  • Requires other technologies for digestate handling
  • Proper feeding & system monitoring is required to avoid system downtime
  • Proven technology for odor control, GHG reduction and pathogen reduction

Newtrient Comments/Opinions:

Ro-Flow Compressors has recently been added to the Newtrient catalog. Newtrient will continue to work with Ro-Flow Compressors to further refine the cost and performance information on their solutions. Newtrient will update this entry as more information becomes available and as new commercial dairy installations come online.

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