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Leading supplier of rotary-lobe gas compressors

Roots Systems is the world’s leading manufacturer of blower, booster and vacuum pump packages for process industries, both onshore and offshore, using API Standard 619 rotary-lobe gas compressors manufactured in our factory in the UK. Roots Systems has been supplying rotary-lobe compressors since 1974.

Roots Systems excels in the design and assembly of custom packages for challenging environments and has built up an unrivalled experience in a wide variety of applications and operating conditions.

We carry out the complete design, manufacture, assembly, inspection and testing in the UK.

Download Our Brochure:  A4 US Letter

Nitrogen Regeneration Compressor

Nitrogen Regeneration Compressor

Principal Areas of Expertise

Each one of our compressor packages involves one or more of our four principal areas of expertise.

Process Gases

Our oil-free Duragas machines comply with API Standard 619 and can handle corrosive, flammable, radioactive and toxic gases for process applications both onshore and offshore.

Hazardous Areas

We supply packages that conform to the Equipment for Explosive Atmospheres Directive (ATEX), ANSI/NFPA 70 ‘National Electrical Code’ (NEC), CSA C22 ‘Canadian Electrical Code’ (CEC) or the IECEx System.

Special Materials

We offer a wide range of materials and paint systems which we can recommend for you according to the corrosiveness of both the process gas and the surrounding atmosphere, combined with your operating pressures and temperatures.

High Pressures

We can manufacture machines that can operate at pressures from a high vacuum to over 150 bar (2175 psi). Our single-stage Duragas machines can generate differential pressures of up to 4½ bar (65 psi). We supply multi-stage compressor packages for higher differential pressures.

Unrivalled Experience

High Specification

We routinely supply packages that meet the high specifications demanded by the petrochemical, offshore (oil and gas) and nuclear industries, such as API and ASME.

LPSR Blower


Our sealing arrangements can prevent process gas from escaping and/or contaminants from entering the process gas, according to your requirements. Our gas-tight compressors handling some of the most dangerous gases, such as hydrogen sulphide (‘sour service’) are safe and reliable.

LPSR Blower Package Cable Tray

Top-end Design and Engineering

Our qualified engineers design the blowers and packages using computer selection programs and the latest 3D CAD technology. This ensures the optimum selection of blowers and ancillary equipment, while keeping within the required footprint, and the prompt submission of correct documentation.

LPSR Blower Package Pipework


Offshore / Oil and Gas

Energy / Power Generation

Chemical and Petrochemical

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