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» IRTJ TYPE R RING JOINT GASKET


type R

The IRTJ type R metal ring joint gaskets are manufactured according to ASME B16.20 : 2007 and API 6A. The type R oval configuration was the original design and was followed by the type R octagonal which offered more specific contact areas.

NOTE:
  • All dimensions are in mm.
  • R30 is suitable for lapped flanges only.
  • Class 720, 960 and 10000 flanges to API 6B are obsolete. Data is for information only.
  • The 23° surfaces shall have surface finish no rougher than 1.6 µm (63 µin RMS).
  • B,H Variation in height throughout the entire circumference shall not exceed 0.5mm.