Composite Vessel

Purpose:
Phobos Sample Return Mission - International Program: Return Spacecraft Propulsion System
Flight qualification of the product:
Letter "O", flight use
Possibility to adapt the product to customer requirements: Yes


Parameter Value
Working medium Nitrogen, Air, Helium
Operating Pressure, not over 17.6 MPa
Liner Mass 1.95 kg
Vessel Mass 5.8 kg
Inner Tank Volume 18 dm³
Unused Working Medium Residue after Expulsions, not over 0.65 dm³
Allowable Helium Leak during Leakage Test, l·μm of He/s, not over 1 · 10ˉ³
Allowable Leak Rate throughout Service Life, l·μm of He/s, not over 2.33 · 10ˉ²
Inner Volume Cleanness Russia State Standard GOST 17216, Class 5
Guaranteed Service Life 15 years

Description

Storage and feed of pressurant to propellant tanks and operating fluid to cold gas thrusters

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