• Dynamic String Swivel

    The dynamic string swivel is located below the flowhead block and above the lower master valve (if included). The swivel allows industry-leading, low-torque rotation of the STT and rig structure around the riser or landing string.



    This swivel design has been validated for combinations of pressure, tension, bending and temperature recording breakout torque throughout. For applications where the lower master valve is hydraulically actuated and positioned below the swivel, We offer our “live center” swivel design, which provides hydraulic communication between the rotating and static sections of the STT.