Rapidly Attachable Fluid Transfer Interface

Rapidly Attachable Fluid Transfer Interface (RAFTI) is a standard interface was developed by Orbit Fab for transferring fluids, e.g., propellants, in space.[1] It has been defined by a group of 30 companies.

The interface specification has high and low pressure variants, both for operation between -40 °C and 120 °C.[2]

  • Low pressure : for MMH, UDMH, Water, H2O2, Methanol, Kerosene, Green Monoprops, isopropyl alcohol, HFE, N2O. (fluids)
  • High pressure : for Nitrogen, Helium, Xenon, Krypton. (gases)

A first implementation is planned to be tested in space in 2021 as part of a prototype fuel depot.[1][3] A free flying orbital demo was launched in June 2021 to test transfers of high-test peroxide.[4]

See also

References
  1. Messier, Douglas (November 18, 2020). "Orbit Fab to Launch Orbital Fuel Depot Next Year – Parabolic Arc". parabolicarc.com. Retrieved 2020-11-26.
  2. RAFTI summary
  3. Orbit Fab to Launch Orbital Fuel Depot Next Year has image
  4. There's Now a Gas Station… In Space! Sept 2021


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