Tolerances (Inches)

>"A" Width of ring: +/-0.008

>"B" "H" Height of ring: +/-0.020

>"P" Average pitch diameter of ring: +/-0.007

>"23o" Angle: +/- 1/2o

Standard

Standard style R ring type joints are manufactured in accordance with both API 6A and ASME B16.20 size and ratings.

Available in both oval and octagonal configurations, both types are interchangeable on the modern octagonal type grooved flanges.

As with all metal ring type joints including style R, it is recommended to replace the ring when flange connection is broken.