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» IRTJ TYPE RX RING JOINT GASKET


The IRTJ type RX metal ring joint gaskets are manufactured according to ASME B16.20 : 2007 and API 6A. The type RX series is of higher strength materials designed primarily for well-head pressures of 700 bar and beyond.

NOTE:
  • All 23° surfaces on R and RX gaskets shall have a surface finish no rougher than 1.6µm Ra ( 63 µin RMS ).
  • One pressure-passage hole illustrated in fig.1 < a >. Centerline of hole shall be located at midpoint of dimension “C“.
  • Tolerance on these dimensions is +0, -0.38
  • Tolerance on these dimensions is +0.50, -0
  • Class 720,960, and 2900 flanges to API 6B are obsolete. Data is for information only.
  • Crossover flange connection.
  • A plus tolerance of 0.20 mm for width “A” and height “H ” is permitted, provided the variation in width or height of any ring does not exceed 0.10 mm throughout its entire circumference.