Nordic Drill created a Compact Discharge swivel optimized for 6-inch casing. It has adapters that fit inside to do big or small diameters.
The discharge has an improved sealing that keeps the dirt and water inside. It has seven barriers that protect the bearing integrity and a seal flushing function to clean the seal from impurities.
Nordic Drill wanted a lighter discharge to fit along its rig in order to reduce the possibility of injury.