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Pressure Control Units: vital equipment for launch

Pressure Control Units have a key role in getting Ariane launch vehicles into space. The mechanical performance of liquid hydrogen and oxygen tanks, the supply of fuel to the cryogenic engine at constant flow and pressure, control of the hydrogen/oxygen ratio, and the activation of pneumatic valves on the cryogenic stage. Not only does Air Liquide produce the Pressure Control Units, we are also general contractor for the tanks' pressurization trials. That makes all the difference!

Why choose us?

  • 01

    Our experience

    We have worked on all the developments for the European launch vehicle, Ariane, as well as numerous international projects, including the International Space Station; the Planck, Herschel, and Microscope satellites; and the Curiosity and ExoMars exploration rovers, among others.

  • 02

    The expertise of our teams

    Our employees are passionate about their work. Our results-minded approach and wealth of expertise have allowed us to make great strides and are now leading us to even more ambitious technological challenges, from launch vehicles with reignition capability and electric propulsion for satellites, to life on Mars...

  • 03

    Our capacity for innovation

    Our innovation teams rely on Air Liquide's expertise and close collaborations with public research laboratories, like the CEA, the CNRS, and the Grenoble University Space Center.