As part of Gulfstream’s full suite of equipment, we provide 6-5/8” Full Hole and 4-1/2″ I.F. Torque Through Swivels. Working in conjunction with the Cement Head, this portion of the tool package is perfectly suited to rotate and reciprocate drill string with top drive while pumping. The pumping inlet manifold does not see the drill string weight but sees only the weight of the pumping line attached from the rig floor. The flow manifold inlet is 3” 1502 with 2-3/4” internal diameter.