PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

DN	D	k	d4	S	d1	d3
10	100	70	40	2.0	17.2	32
15	105	75	45	2.0	21.3	34
20	130	90	58	2.6	26.9	42
25	140	100	68	2.6	33.7	52
32	155	110	78	2.9	42.4	62
40	170	125	88	2.9	48.3	70
50	180	135	102	4.0	60.3	82
65	205	160	122	4.0	76.1	98
80	215	170	138	4.5	88.9	112
100	250	200	162	4.5	114.3	138
125	295	240	188	5.6	139.7	168
150	345	280	218	6.3	168.3	202
200	415	345	285	7.1	219.1	256
250	470	400	345	8.8	273.0	316
300	530	460	410	11.0	323.9	372
DN	D	k	d4	S	d1	d3
350	600	525	465	12.5	355.6	420
400	670	585	535	14.2	406.4	475

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PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

DN	d2	f	b	h1	h2	r
10	14	2	20	45	6	4
15	14	2	20	45	6	4
20	18	2	22	48	8	4
25	18	2	24	58	8	4
32	22	2	24	60	8	6
40	22	3	26	62	10	6
50	22	3	26	62	10	6
65	22	3	26	68	12	6
80	22	3	28	72	12	8
100	26	3	30	78	12	8
125	30	3	34	88	12	8
150	33	3	36	95	12	10
200	36	3	42	110	16	10
250	36	3	46	125	18	12
300	36	4	52	140	18	12
DN	d2	f	b	h1	h2	r
350	39	4	56	150	20	12
400	42	4	60	160	20	12

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PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

DN	No of Bolts	Dia. of Hex Bolts	Length of Hex Bolts	Dia. of Stud BoltsS	Length of Stud Bolts
10	4	M12	60	1/2″	75
15	4	M12	60	1/2″	75
20	4	M16	65	5/8″	85
25	4	M16	70	5/8″	90
32	4	M20	75	3/4″	95
40	4	M20	80	3/4″	100
50	4	M20	80	3/4″	100
65	8	M20	80	3/4″	100
80	8	M20	85	3/4″	105
100	8	M24	90	7/8″	115
125	8	M27	105	1″	130
150	8	M30	110	1-1/8″	145
200	12	M33	125	1-1/4″	165
250	12	M33	135	1-1/4″	170
300	16	M33	145	1-1/4″	185
DN	No of Bolts	Dia. of Hex Bolts	Length of Hex Bolts	Dia. of Stud BoltsS	Length of Stud Bolts
350	16	M36	160	1-3/8″	200
400	16	M39	170	1-1/2″	215

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400

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Legend

D = Outside Diameter
k = Diameter of Bolt Circle
d2 = Diameter of Bolt Holes
d4 = Diameter of Raised Face
f = Height of Raised Face
d1 = Outside Diameter of Neck
b = Flange thickness
h1 = Length of Flange
h2 = Length of right end
d3 = Neck Diameter
r = Radius of Corners
S = Wall thickness

General notes:

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

Extra notes:

1. Hex bolt lengths and diameters & lengths of Stud Bolts are calculated.
2. All bolt lengths calculated without washers, spring washers etc. and free threads (equals 1/3 time bolt diameter).
3. Gasket thickness considered 3 mm for bolt length calculations.
4. The dimensions of the bolts are for the type 11 weld neck flange.
5. Please not that other types of flanges can be have different bolt hole diameters and thicknesses, so that the bolts even can have different dimensions.

PN10 | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN250 | PN320 | PN400