Vulcain Purge Valve (PV)
Vulcain Purge Valve (PV)

Vulcain Purge Valve (PV)
Mass 3.9 kg
Fluid compatibility L/GH2, L/GOx, L/GN2, GHe
Maximal pressure 197 bar
ESEOD 21 mm
Flow rate (LH2 – LOx) 1.5 kg/s – 3 kg/s
The Purge Valve (PV) is a normally open pneumatic poppet valve. It allows the engine’s chill down and manages the engine transients. Part of the Vulcain cryogenic engine, the PV remain closed at high propellant pressure even in case of a loss of the helium command pressure.
Vulcain Purge Valve (PV)
Mass 3.9 kg
Fluid compatibility L/GH2, L/GOx, L/GN2, GHe
Maximal pressure 197 bar
ESEOD 21 mm
Flow rate (LH2 – LOx) 1.5 kg/s – 3 kg/s
Design, development, assembly & testing of flow regulation valves for space launcher engines and stages.

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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