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Semi-Hermetic and Oil-Free Scroll Compressors for Fuel Cell
Scroll Technology for Hydrogen Recirculation

Air Squared has over thirty years of experience designing custom scroll solutions for pumping difficult and flammable working fluids.

For specialized fuel cell applications, finding a safe solution for anode-side hydrogen recirculation is challenging. With several semi-hermetic design configurations for positive containment and patented cooling configurations for managing high temperatures, Air Squared can deliver a custom hydrogen-compatible scroll solution that is designed around your unique specifications.

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Hydrogen Recirculation
Custom Design and Development

With an ever-expanding range of design capabilities for unique working fluids, Air Squared has unique solutions for unique hydrogen applications.

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Oil-Free Design

Oil-free scroll technology offers a non-lubricated alternative to traditional technology like piston, diaphragm, and vane.

Gasses Other Than Air

With several patented semi-hermetic configurations, scroll compressors can be used for far more than moving air.


When minimal power consumption is critical, leverage the inherent efficiency advantage of scroll technology.

Elevated Temperatures

Using patented liquid-cooled scroll technology scroll compressors can be designed to withstand harsh temperatures and environmental conditions.

Hydrogen Recirculation
Technology Innovation


Semi-hermetic scroll technology allows oil-free scroll designs to be compatible with numerous gases by incorporating one of four unique sealing configurations.

Flow0 to 1,500 lpmv
Pressure0 to 13 barg
Vacuum1,013.25 to 0.1 mbara
Fluid CompatibilityAir, CO2, CO, N, Ar, He, SF6, Natural Gas, CH4, Refrigerant, H2, O2, NH3, CH4, Steam, Other

Design Experience Range

Product Line Coverage

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