IS 6392 — PN 40 (Table 27 weld-neck + Table 31 blind) — thickness, neck and drilling

Name: IS 6392 PN 40 (Table 27 weld-neck + Table 31 blind) — thickness, neck and drilling
License: https://teshigroup.com

IS 6392 PN 40 (Table 27 weld-neck + Table 31 blind) — thickness, neck and drilling — 19 sizes.

Size	A — Pipe OD (mm)	D — Flange OD (mm)	C — Weld neck (mm)	H — WN length (mm)	N — Hub / neck dia (mm)	d1 — Raised face (mm)	f — RF height (mm)	K — Bolt circle (mm)	n — Bolts	L — Hole dia (mm)	Bolt — Size	C — Blind (mm)
10	17.2	90	16	35	28	40	2	60	4	14	M12	16
15	21.3	95	16	38	32	45	2	65	4	14	M12	16
20	26.9	105	18	40	40	58	2	75	4	14	M12	18
25	33.7	115	18	40	46	68	2	85	4	14	M12	18
32	42.4	140	18	42	56	78	2	100	4	18	M16	18
40	48.3	150	18	45	64	88	3	110	4	18	M16	18
50	60.3	165	20	48	75	102	3	125	4	18	M16	20
65	76.1	185	22	52	90	122	3	145	8	18	M16	22
80	88.9	200	24	58	105	138	3	160	8	18	M16	24
100	114.3	235	24	65	134	162	3	190	8	22	M20	24
125	139.7	270	26	68	162	188	3	220	8	26	M24	26
150	168.3	300	28	75	192	218	3	250	8	26	M24	28
175	193.7	350	—	82	—	260	3	295	12	30	M27	32
200	219.1	375	34	88	244	285	3	320	12	30	M27	—
250	273	450	38	105	—	345	3	385	12	33	M30	38
300	323.9	515	42	115	—	410	4	450	16	33	M30	42
350	355.6	580	46	125	408	465	4	510	16	36	M33	—
400	406.4	660	50	135	462	535	4	585	16	39	M36	50
500	508	755	52	140	562	615	4	670	20	42	M39	56

All dimensions are in millimetres.
The PN 40 tables also apply to DN 10–150 at PN 25.
IS 6392 drilling follows the ISO/DIN metric series, so IS 6392 flanges generally mate with EN 1092-1 / DIN flanges of the same PN — check the raised face and thickness for your flange type.
Values are nominal, compiled from published copies of the standard; blank cells (—) are values not confirmed from the sources available. Verify against the current edition before design, purchase or fabrication.