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Safety Relief Valve (SSEI)

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Safety Relief Valve (SSEI)

SSEI

Safety Relief Valve (SSEI)

Safran Aero Boosters

Mass 0.7kg

Fluid compatibility GHe, GN2, LN2

Operating cracking pressure 26.4-27.4 bar

Operating Flow rate Until 480g/s GHe

Internal Leakage < 1 Ncm3/s GHe @ 22 bar

The Safety relief valve (SSEI), part of the liquid He subsystem (SSHeL), main function is to ensure the quick depressurization of the Helium liquid tank in case of unexpected overpressure and in the nominal case, ensure the tightness of Helium tank.

Safety Relief Valve (SSEI)

Product Space propulsion

Safran Aero Boosters

Mass 0.7kg

Fluid compatibility GHe, GN2, LN2

Operating cracking pressure 26.4-27.4 bar

Operating Flow rate Until 480g/s GHe

Internal Leakage < 1 Ncm3/s GHe @ 22 bar

The Safety Relief Valve (SSEI)

Other function

The Safety relief valve (SSEI) is part of the liquid He subsystem (SSHeL) of Ariane 5 and Ariane 6 launchers. The SSHeL is designed to ensure the pressurisation of the liquid O2 tank of the cryotechnical main stage (EPC), propelled by Vulcain engine.

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.

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