GOST 12821 welding neck flange dimensions PN100 10Mpa

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Update time : 2026-10-22 09:13:10

GOST 12821 welding neck flange dimensions PN100 10Mpa

　　GOST 12821 Weld Neck Flanges – Supplied by Shengtian Group. Shengtian Group offers high-quality GOST 12821 Weld Neck Flanges , manufactured in compliance with Russian standards, designed to provide robust, reliable connections in high-pressure and high-temperature applications.

　　Shengtian Group offers high-quality GOST 12821 Weld Neck Flanges, manufactured in compliance with Russian standards, designed to provide robust, reliable connections in high-pressure and high-temperature applications.

Dn, мм	D, мм	D1, мм	d, мм	Dm, мм	Dn, мм	d1, мм	b, мм	h4, мм	n-￠	кg
15	105	75	14	38	19	12	18	46	4	1,26
20	125	90	18	48	26	18	20	51	4	1,98
25	135	100	18	52	33	25	22	56	4	2,48
32	150	110	22	64	39	31		60	4	3,05
40	165	125	22	76	46	37	23	67	4	4,06
50	195	145	26	86	58	45	25	68	4	6,03
65	220	170	26	110	77	62	29	80	8	8,52
80	230	180	26	124	90	75	31	87	8	9,91
100	265	210	30	146	110	92	35	97	8	14,65
125	310	250	33	180	135	112	39	112	8	23,32
150	350	290	33	214	161	136	43	125	12	32,87
200	430	360	39	276	222	190	51	140	12	54,24
250	500	430	39	340	278	236	57	160	12	85,24
300	585	500	45	400	330	248	66	180	16	127,78
350	655	560	52	460	382	332	72	195	16	170,94
400	715	620	52	510	432	376	76	200	16	216,44

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