Gasket - Ring Joint, ANSI Class 150-2500, Ring Number (in)

Gasket - Ring Joint, ANSI Class 150-2500, Ring Number (in) Dimensions to ASME B16.20 - Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed
Pipe Size (NPS)	150	300	400	600	900	1500	2500
1/2	-	R11	R11	R11	R12	R12	R13
3/4	-	R13	R13	R13	R14	R14	R16
1	R15	R16	R16	R16	R16	R16	R18
1 1/4	R17	R18	R18	R18	R18	R18	R21
1 1/2	R19	R20	R20	R20	R20	R20	R23
2	R22	R23	R23	R23	R24	R24	R26
2 1/2	R25	R26	R26	R26	R27	R27	R28
3	R29	R31	R31	R31	R31	R35	R32
3 1/2	R33	R34	R34	R34	-	-	-
4	R36	R37	R37	R37	R37	R39	R38
5	R40	R41	R41	R41	R41	R44	R42
6	R43	R45	R45	R45	R45	R46	R47
8	R48	R49	R49	R49	R49	R50	R51
10	R52	R53	R53	R53	R53	R54	R55
12	R56	R57	R57	R57	R57	R58	R60
14	R59	R61	R61	R61	R62	R63	-
16	R64	R65	R65	R65	R66	R67	-
18	R68	R69	R69	R69	R70	R71	-
20	R72	R73	R73	R73	R74	R75	-
22	R80	R81	R81	R73	-	-	-
24	R76	R77	R77	R77	R78	R79	-