Temperature of Application of GOST 12836-67 PN2.5 Blind Flanges -70 … +530 ° C

EO Flanges can provide GOST 12836-67 PN2.5 Blind Flanges. GENERAL INFORMATION The difference between the plugs and the flanges is that the plugs do not have a central hole. They are designed for overlapping pipes, when there is no need for any branch pipe. The blanking of the blind flange is...

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EO Flanges can provide GOST 12836-67 PN2.5 Blind Flanges.

мм	D,	D1,	D2,	b,	d2,	d,	h1,	h,	Q-ty	Weight
мм	мм	мм	мм	мм	мм	мм	мм	мм	pcs	kg
Ру = 2.5 МPа (25 kgf/см2)
15	95	65	45	12	10	14	2	2	4	0,43
20	105	75	58	12	16	14	2	2	4	0,55
25	115	85	68	12	22	14	2	2	4	0,67
32	135	100	78	12	28	18	2	2	4	0,91
40	145	110	88	14	36	18	3	2	4	1,24
50	160	125	102	14	46	18	3	2	4	1,55
65	180	145	122	16	60	18	3	2	8	2,29
80	195	160	138	18	76	18	3	2	8	3,21
100	230	190	162	20	94	23	3	2	8	5,07
125	270	220	188	22	118	27	3	2	8	7,83
150	300	250	218	24	142	27	3	2	8	10,95
200	360	310	278	26	196	27	3	2	12	17,51
250	425	370	335	30	244	30	3	2	12	28,93
300	485	430	390	34	294	30	4	3	16	42,00
350	550	490	450	38	344	33	4	3	16	61,48
400	610	550	505	40	390	33	4	3	16	81,12
500	730	660	615	48	490	40	4	3	20	140,22
600	840	770	720	50	590	40	5	4	20	194,50
800	1075	990	930	63	780	46	5	4	24	409,07

GENERAL INFORMATION

The difference between the plugs and the flanges is that the plugs do not have a central hole. They are designed for overlapping pipes, when there is no need for any branch pipe. The blanking of the blind flange is made by the method of hot stamping, by the method of gas cutting from steel sheet or from high-quality rolled metal. The advantages of this method are obvious: the absence of cracks, voids in the metal, improved mechanical properties and better weld ability.

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