Make Your Spacecraft Refuelable With RAFTI

Orbit Fab's RAFTI spacecraft which looks like a metal octagon with two metal tubes extending out the back

The Industry-Standard Satellite Refueling Interface

RAFTI is an open license TRL 7 cooperative docking and refueling interface that replaces your existing fill and drain valve to enable on-orbit and ground fueling.
Trusted By:
  • 05

    US and International Government Programs

  • 100+

    Commercial Spacecraft and Counting

Why RAFTI?

  • Line art depicting orbit Enables on-orbit refueling with built-in cooperative docking capability
  • Two dots with two dotted lines connecting them Replaces your existing fill and drain valve, minimizing additional complexity and mass
  • Line art square with circle on top Available under open license, ensuring flexibility
  • Two overlapping circles with dot in the middle Adheres to international best practices set by CONFERS

Designed With Your Mission in Mind

  • Wavy black and silver satin depicting fluid
    Multiple inhibits against leaks, aligned with industry safety requirements
  • Orbit Fab's RAFTI service valve and GRIP, the passive and active sides of the refueling interface, connected by two dotted lines
    Supports both on-orbit and ground refueling
  • Spacecraft
    Supports a wide range of storable fuel types, spacecraft sizes, and propulsion systems
  • Close up of RAFTI and fiducials that look like simple QR codes
    Alignment markers reduce complexity of proximity operations
  • Orbit Fab fuel shuttle docking to a spacecraft that consists of a gold foil covered cube with long solar arrays outstretched on either side. Earth in background.
    Designed to last in GEO and beyond
  • Close up of RAFTI service valve
    Passive retractable covers protect sealing surfaces
  • RAFTI valve cores in assembly line on a tray
    Available off-the-shelf with minimal lead times and and no minimum order quantities
Close up of RAFTI refueling interface which looks like a metal octagon with two holes in the middle.

Channel Partnership Program

Our Channel Partnership Program ensures RAFTI integrates seamlessly with existing propulsion systems and bus configurations.

Client Spacecraft Requirements

Fiducials

Tracking markers enable docking
  • Minimum of three non-collinear fiducials, tollerant of 5 degree X and Y axis misalignment
  • Recommended: encircling Whycon marker and 4th fiducial increases robustness against shadows

Supported Pressure

Two valve core Class Ratings of operating pressure
  • Low

    4.48 Mpa (650 psig) TBS

  • High

    20.68 Mpa (3000 psig) TBS

Propellant Compatibility

RAFTI has two valve cores that support the transfer of two independent fluids, ensuring compatibility with various propulsion systems. With multiple pressure variants, RAFTI is designed to be compatible with a wide range of storable propellants.

Reach out to our BD team to inquire about RAFTI integration into your mission.
Contact Us
  • Hydrazine

    N2H4

  • Xenon

    Xe

  • High-Test Peroxide

    H2O2

  • ASCENT

    Green

  • Water

    H2O

  • Krypton

    Kr

Integration with Propulsion Systems

A single RAFTI Service Valve (RSV) supports the transfer of two independent fluids, for example, propellant and pressurant. It can also be used in bipropellant systems.
  • Blowdown Mono-Prop with and without Bladder
  • Blowdown Mono-Prop with and without Bladder
  • Blowdown Mono-Prop with and without Bladder
  • Close up of RAFTI refueling interface on a spacecraft with solar panels
  • Two people assembling hardware on a manufacturing floor
  • Open TVAC chamber with RAFTI inside

Rapid Development, Rigorous Testing

RAFTI is designed, built, and tested to ensure the highest quality product and minimal lead times for our customers.
  • Close up of satellite hardware with person in background
  • Close up of RAFTI connected to hoses for fueling
  • TVAC chamber and computers

Pre-Launch Fueling

Use RAFTI as a fill-and-drain valve to fuel your spacecraft prior to launch with our RAFTI Ground Coupling.
Close up of RAFTI connected to tubing
  • Integrates with existing ground fueling infrastructure
  • Visual indicators allow for seamless operations
  • FOD mitigated with fully enclosed chassis
  • Flow fluid independently through each RAFTI valve core

What Could You Do With More Delta-V?

  • Impact

    Unlock Unlimited Potential

    Discover how refueling can benefit your mission and business.
  • UMPIRE logo

    Tailored Refueling Service

    With your inputs, we design an optimized refueling service that maximizes the benefit to your mission.
Built for you
hexagon background
Built for you
“[RAFTI] has become the common interface for satellite fueling ports.”
Headshot of man with American flag in background
Karl Stolleis
Air Force Research Lab
Program Manager, Space Vehicles Directorate

Designed for Your Mission

Trusted By:
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Type One Ventures logo
SpaceFund logo
Tribe Capital logo
Northrop Grumman logo
Marubeni Ventures logo
Munich Re logo
Lockheed Martin logo
8090 Industries logo
Bolt logo
Type One Ventures logo
SpaceFund logo
Tribe Capital logo
Northrop Grumman logo
Marubeni Ventures logo
Munich Re logo
Lockheed Martin logo
8090 Industries logo
Bolt logo
Type One Ventures logo
SpaceFund logo
Tribe Capital logo
Northrop Grumman logo
Marubeni Ventures logo
Munich Re logo
Lockheed Martin logo
8090 Industries logo