Dimensions Weld Neck Flanges Type 11 PN40 DIN EN 1092/1 ‎‏& Metric Hex ‎‏Bolts

Vorschweiss-Flansche Type 11 DIN EN 1092-1

OTHER PRESSURE CLASSES

PN10

PN16

PN25

PN40

PN63

PN100

PN160

PN250

PN320

PN400

DN	A	B	C	D	E	F
10	90	60	40	2	17.2	28
15	95	65	45	2	21.3	32
20	105	75	58	2.3	26.9	40
25	115	85	68	2.6	33.7	46
32	140	100	78	2.6	42.4	56
40	150	110	88	2.6	48.3	64
50	165	125	102	2.9	60.3	75
65	185	145	122	2.9	76.1	90
80	200	160	138	3.2	88.9	105
100	235	190	162	3.6	114.3	134
125	270	220	188	4	139.7	162
150	300	250	218	4.5	168.3	192
200	375	320	285	6.3	219.1	244
250	450	385	345	7.1	273	306
300	515	450	410	8	323.9	362
350	580	510	465	8.8	355.6	408
400	660	585	535	11	406.4	462
450	685	610	560	12.5	457	500
500	755	670	615	14.2	508	562
600	890	795	735	16	610	666

DN	G	H	K	M	N	R
10	14	2	16	35	6	4
15	14	2	16	38	6	4
20	14	2	18	40	6	4
25	14	2	18	40	6	4
32	18	2	18	42	6	6
40	18	3	18	45	7	6
50	18	3	20	48	8	6
65	18	3	22	52	10	6
80	18	3	24	58	12	8
100	22	3	24	65	12	8
125	26	3	26	68	12	8
150	26	3	28	75	12	10
200	30	3	34	88	16	10
250	33	3	38	105	18	12
300	33	4	42	115	18	12
350	36	4	46	125	20	12
400	39	4	50	135	20	12
450	39	4	57	135	20	12
500	42	4	57	140	20	12
600	48	5	72	150	20	12

DN	No of bolts	Dia of Hex Bolts	Length of Hex Bolts	Dia of Stud Bolts	Length of Stud Bolts
10	4	M12	50	1/2"	65
15	4	M12	50	1/2"	65
20	4	M12	55	1/2"	70
25	4	M12	55	1/2"	70
32	4	M16	60	5/8"	80
40	4	M16	60	5/8"	80
50	4	M16	65	5/8"	80
65	8	M16	65	5/8"	85
80	8	M16	70	5/8"	90
100	8	M20	75	3/4"	95
125	8	M24	85	7/8"	110
150	8	M24	90	7/8"	115
200	12	M27	105	1"	130
250	12	M30	115	1.1/8"	145
300	16	M30	125	1.1/8"	155
350	16	M33	135	1.1/4"	170
400	16	M36	145	1.3/8"	185
450	20	M36	160	1.3/8"	200
500	20	M39	165	1.1/2"	205
600	20	M45	200	1.3/4"	250

Indications..

A = Outside Diameter
B = Diameter of Bolt Circle
G = Diameter of Bolt Holes
C = Diameter of Raised Face
H = Height of Raised Face
E = Outside Diameter of Neck

K = Flange thickness
M = Length of Flange
N = Length of right end
F = Neck Diameter
R = Radius of Corners
D = Wall thickness

General notes..

Dimensions are in millimeters unless otherwise indicated.
Butt-weld ends (must be specified when ordering) DIN 3239-1-R6 edge form 22 to DIN 2559 (DIN EN ISO 9692)

Special notes..

Hex bolt lengths and diameters and lengths of Stud Bolts are calculated by the author of this website.
All lengths are calculated without washers, spring washers etc. and free threads (equals 1/3 time bolt diameter)
All lengths are calculated with a gasket thickness of 3 mm.
The dimensions of the bolts are calculated for the type 11 weld neck flange. Other types of flanges can be have different bolt hole diameters and thicknesses, so that the bolts even can have different dimensions.

Note 1.. ISO 7005-1 (steel flanges) PN 20, 50, 110, 150, 260, 420 are designed to be interchangeable with ASME B16.5 and MSS SP-44 flanges - ISO 7005-1 flanges are not identical to ASME B 16.5 and MSS SP 44 flanges but are deemed to comply with the dimensions specified in the ASME B 16.5 and MSS SP 44.

ISO 7005-2 (cast iron) flanges PN 20, 50 are designed to be interchangeable with ANSI/ASME B16.1 (gray cast iron) and B 16.42 (ductile cast iron) but they are not identical. They are deemed to comply with dimensions specified in ASME B16.1 (grey cast iron) and B 16.42 (ductile cast iron).

Note 2.. ISO PN 2.5, 6 do not have a corresponding ASME class and ASME Class 75, 400 and 800 do not have corresponding ISO PN designation. The use of these PN and Class flange ratings are therefore not recommended.

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DN	G	H	K	M	N	R
10	14	2	16	35	6	4
15	14	2	16	38	6	4
20	14	2	18	40	6	4
25	14	2	18	40	6	4
32	18	2	18	42	6	6
40	18	3	18	45	7	6
50	18	3	20	48	8	6
65	18	3	22	52	10	6
80	18	3	24	58	12	8
100	22	3	24	65	12	8
125	26	3	26	68	12	8
150	26	3	28	75	12	10
200	30	3	34	88	16	10
250	33	3	38	105	18	12
300	33	4	42	115	18	12
350	36	4	46	125	20	12
400	39	4	50	135	20	12
450	39	4	57	135	20	12
500	42	4	57	140	20	12
600	48	5	72	150	20	12

DN	G	H	K	M	N	R
10	14	2	16	35	6	4
15	14	2	16	38	6	4
20	14	2	18	40	6	4
25	14	2	18	40	6	4
32	18	2	18	42	6	6
40	18	3	18	45	7	6
50	18	3	20	48	8	6
65	18	3	22	52	10	6
80	18	3	24	58	12	8
100	22	3	24	65	12	8
125	26	3	26	68	12	8
150	26	3	28	75	12	10
200	30	3	34	88	16	10
250	33	3	38	105	18	12
300	33	4	42	115	18	12
350	36	4	46	125	20	12
400	39	4	50	135	20	12
450	39	4	57	135	20	12
500	42	4	57	140	20	12
600	48	5	72	150	20	12

DN	G	H	K	M	N	R
10	14	2	16	35	6	4
15	14	2	16	38	6	4
20	14	2	18	40	6	4
25	14	2	18	40	6	4
32	18	2	18	42	6	6
40	18	3	18	45	7	6
50	18	3	20	48	8	6
65	18	3	22	52	10	6
80	18	3	24	58	12	8
100	22	3	24	65	12	8
125	26	3	26	68	12	8
150	26	3	28	75	12	10
200	30	3	34	88	16	10
250	33	3	38	105	18	12
300	33	4	42	115	18	12
350	36	4	46	125	20	12
400	39	4	50	135	20	12
450	39	4	57	135	20	12
500	42	4	57	140	20	12
600	48	5	72	150	20	12