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Vulcain 2.1 Hot Gas Valve (VGC 2.1)

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Vulcain 2.1 Hot Gas Valve (VGC 2.1)

Hot Gaz Valve Vulcain 2 1

Vulcain 2.1 Hot Gas Valve (VGC 2.1)

Safran Aero Boosters

Mass (flight/ground) 8 kg / 11.5kg

Fluid compatibility GH2, H2O, GHe, GN2

Operating temperature From 230K to 960K

Maximal operating pressure 130 bar

Flow rate 5kg/s

The Hot Gas Valve (VGC 2.1) is an electrically actuated throttling valve on the Ariane 6 Vulcain 2.1 cryogenic engine, located downstream of the gas generator. Its position is fixed during flight.

Vulcain 2.1 Hot Gas Valve (VGC 2.1)

Product Space propulsion

Safran Aero Boosters

Mass (flight/ground) 8 kg / 11.5kg

Fluid compatibility GH2, H2O, GHe, GN2

Operating temperature From 230K to 960K

Maximal operating pressure 130 bar

Flow rate 5kg/s

The Hot Gas Valve’s (VGC 2.1)

Main function

The Hot Gas Valve (VGC 2.1) is an electrically actuated throttling valve. It provides an adjustable head loss on the Oxygen turbine inlet line which allows adjusting the engine mixture ratio during tuning procedure on ground.
Space Equipment

Design, development, assembly & testing of flow regulation valves for space launcher engines and stages.

Space equipement - Safran Aero Boosters - VP - Vinci Engine.

Safran Aero Boosters specializes in flow regulation valves for space propulsion. With a strong focus on Research and Technology, the company is a partner on most future European launcher propulsion programs. Safran Aero Boosters’s equipment is developed under extreme conditions of temperature, pressure, vibration and flow and has demonstrated 100% reliability over 45 years. The company is able to hardness this high-level expertise to provide flow regulation valves (pneumatic/electric – linear/rotative) for most of propulsion systems on launchers.

  • © Thierry Dosogne / Safran
  • © Béa Uhart / CAPA Pictures / Safran