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Vulcain 2 Hot Gas Valve (VGC2)

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Vulcain 2 Hot Gas Valve (VGC2)

VGC2 du moteur Vulcain

Vulcain 2 Hot Gas Valve (VGC2)

Safran Aero Boosters

Mass 11.5 kg

Fluid compatibility GH2, H2O, GHe, GN2

Operating temperature From 230K to 930K

Maximal operating pressure 130 bar

Maximal flow rate 5 kg/s

The Hot Gas Valve (VGC2) is a pneumatically actuated throttling valve on the Ariane 5 Vulcain 2 cryogenic engine. It is located downstream of the gas generator.

Vulcain 2 Hot Gas Valve (VGC2)

Product Space propulsion

Safran Aero Boosters

Mass 11.5 kg

Fluid compatibility GH2, H2O, GHe, GN2

Operating temperature From 230K to 930K

Maximal operating pressure 130 bar

Maximal flow rate 5 kg/s

TheVulcain 2 Hot Gas Valve’s (VGC2)

Main function

The Hot Gas Valve (VGC2) is a pneumatically actuated throttling valve. Its main function is to provide an adjustable head loss on the Oxygen turbine inlet line which allows adjusting the engine fuel/oxidizer mixture ratio during the engine firing.

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.

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  • © Béa Uhart / CAPA Pictures / Safran