NORSOK L-005 IX SEAL RINGS

IX Seal Rings are designed for use in compact flange connections as detailed in the NORSOK standard. The compact flange design is such that when the flange connection is assembled the tightening / tensioning of the bolts pulls the flange onto the tapered sealing faces on the outside diameter of the IX Seal Ring. The compact flange assembly design has two seals, where the primary seal is the IX Seal Ring and the secondary seal is provided by the application of a seal seating stress at the flange heel. As with the API ring type joints, the IX Seal Rings are manufactured to very fine tolerances and quality control requirements. Material selection is also very important to avoid corrosion issues. IX Seal Rings are color coded to denote the metallurgy used.