gas rotary union / multi-passage / for satellite refueling systems
BU-1490201 DSTI - Dynamic Sealing Technologies



  • Medium:

    for gas

  • Number of passages:


  • Applications:

    for satellite refueling systems

  • Pressure:

    10 psi

  • Rotational speed:

    1 rpm (6 rad.min-1)

  • Nominal size:

    1.51 in


This one passage rotary union is created for a cryogenic (liquid methane) hose initiation system for satellite refueling in long and near orbit. It comes with an extensive list of features to include compact lightweight design that has low torque, and a completely tested sealing system that can accommodate media temperatures in the range of -310F to -256F. The precise specifications of the unit include 1 passage, .230" passage size, 1 RPM rotational speed, 10 PSI pressure, 1.510" diameter and 1.950" length.