Space Hardware
Image: NASA; Photographer: Thales Alenia Space
Next Generation Valves and Components
Aurora designs, builds, and delivers essential components for spacecraft, including qualified, next-generation pressure relief valves used on NASA and ESA programs. Our pressure relief valves meet more stringent lunar mission environmental requirements. Our high-performance composite parts withstand the extreme heat and forces of space travel.

Positive Pressure Relief Valve (PPRV)
Aurora provides PPRVs for Cygnus and Gateway and first delivered PPRVs for the International Space Station in 1995. The PPRV is a fully pneumatic mechanical device designed to sense pressure build up and allow internal air to escape, preventing additional increase in pressure.
Open between 15.00 and 15.20 psid
Operating pressure: 2 x 10-04 to 15.2 psia
Operating temperature: 4 to 45 °C
Manual Pressure Equalization Valve (MPEV)
The MPEV is a mechanical device to manually equalize the pressure between two space station modules. Knobs on both the inlet and exit sides allow a crewmember to equalize pressure from either side. Aurora provides MPEVs for NASA’s Habitation and Logistics Outpost (HALO) module.
Max Flow Rate: 6.75 lbm/min at 15.5 psid
Operating pressure: 2 x 10-04 to 15.2 psia
Operating temperature: 4 to 45°C


Composite Components
Aurora manufactures large, high-performance composite parts designed to withstand the extreme heat and forces of space travel. These structures include thermal protection systems for launch and reentry, along with strong internal components that support the spacecraft during flight.
Withstand extreme thermal and mechanical demands
Designed for precision and reliability for mission success
Made in our advanced manufacturing facility in Mississippi
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Image: NASA; Photographer: Josh Valcarcel