ASME B16.5 / B16.20 — Ring joint (RTJ) gasket — Class 300

Name: ASME B16.5 / B16.20 Ring joint (RTJ) gasket — Class 300
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ASME B16.5 / B16.20 Ring joint (RTJ) gasket — Class 300 — 20 sizes.

NPS	Ring no.	Pitch dia. P (mm)	Ring width A (mm)	Height oval B (mm)	Height octagonal H (mm)
1/2	R-11	34.14	6.35	11.2	9.7
3/4	R-13	42.88	7.95	14.2	12.7
1	R-16	50.8	7.95	14.2	12.7
1-1/4	R-18	60.33	7.95	14.2	12.7
1-1/2	R-20	68.28	7.95	14.2	12.7
2	R-23	82.55	11.13	17.5	16
2-1/2	R-26	101.6	11.13	17.5	16
3	R-31	123.83	11.13	17.5	16
3-1/2	R-34	131.78	11.13	17.5	—
4	R-37	149.23	11.13	17.5	16
5	R-41	180.98	11.13	17.5	16
6	R-45	211.15	11.13	17.5	16
8	R-49	269.88	11.13	17.5	16
10	R-53	323.85	11.13	17.5	16
12	R-57	381	11.13	17.5	16
14	R-61	419.1	11.13	17.5	16
16	R-65	469.9	11.13	17.5	16
18	R-69	533.4	11.13	17.5	16
20	R-73	584.2	12.7	19.1	17.5
24	R-77	692.15	15.88	22.4	20.6