Size/Pressure Class:
1/2” to24” ： 150to 2500ASMEB16.20
26” to 36” ： 300 to 900 ASME B16.47 Series A 1
1-1/2” to 20” ： API 6A
Applications:
• Used for high pressure applications.
•Typical Properties：
• High integrity seal at high pressures
• The octagonal cross section has a higher sealing efficiency than the oval and would be the preferred gasket
• Suitable for flat and round bottom groove flanges. Interchangeable on modern octagonal type grooved flanges.
NOTES：
(1) Class 720, 960, and 2900 flanges to API 6B are obsolete. Data are for information only
(2) Crossover flange connection.
(3) Rings RX-82 through RX-91 only require one pressure passage hole as illustrated. The centerline of the hole shall be located at the mid-oint of dimension C.
