Composite Vessel
Glavkosmos
A flight-qualified composite vessel designed for spacecraft propulsion systems, capable of storing and feeding pressurant to propellant tanks and operating fluid to cold gas thrusters.
Key figurescomparable across the catalogue
- Mass
- 1.95 kg
- Design life
- 15 years
- TRL
- 9
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- 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
- 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
- Design life
- 15 years
About
This Composite Vessel is specifically designed for the Phobos Sample Return Mission as part of an International Program, serving as a critical component in the Return Spacecraft Propulsion System. It is flight-qualified with a “Letter O” designation, indicating its readiness for space use. The vessel’s primary purpose is the storage and feed of pressurant to propellant tanks and operating fluid to cold gas thrusters. It is adaptable to customer requirements. The vessel can operate with Nitrogen, Air, and Helium as working mediums, with an operating pressure not exceeding 17.6 MPa. It has a liner mass of 1.95 kg and a total vessel mass of 5.8 kg. The inner tank volume is 18 dm³, with an unused working medium residue after expulsions not exceeding 0.65 dm³. The allowable helium leak during leakage tests is not over 1 · 10ˉ³ l·μm of He/s, and the allowable leak rate throughout its service life is not over 2.33 · 10ˉ² l·μm of He/s. The inner volume cleanness meets Russia State Standard GOST 17216, Class 5. The product comes with a guaranteed service life of 15 years.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.