standard Style R which energizes on same groove design as a standard Style R, making the joints interchangeable. Consideration should be given to the difference in finished make-up distance. The modified design uses an energizing on assembly effect which improves the Designs are also available for Subsea DIMENSIONAL DATA - STYLE RX TOLERANCES: (INCHES) *A plus tolerance of 0.008 inches for width 'A' and height 'H' is permitted, provided the variation in width or height does not exceed 0.004 inches throughout its entire The pressure passage hole illustrated in the Ring Type Joint cross section ensures equalization of pressure which may be trapped in the grooves, it is in rings RX82 through RX91 only. Center line of hole shall be located at mid point of dimension "c" (width of flat). Hole diameter shall be as follows: 0.06 inches for rings RX82 through RX85; 0.12 inches for rings RX88 through RX91.

PRESSURE CLASS RATING (PSI) NOMINAL PIPE SIZE (INCHES) * API allows more liberal tolerances on RX 201-215 t Denotes API Ring Type Joint gaskets for segmented flanges for dual completions to API Standard 6A. Designs are also available for Subsea applications.