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NOTE 1: Dimensions Nl, N2 and N3 are measured at the intersection of the hub draft angle and the back face of the flange.

NOTE 2: For dl dimensions see document "Flange facing according to EN 1092-1".

Dimensions in mm


	Mating dimensions
Nominal diametar DN	Outside diametler	Diameter of bolt circle	Diameter of bolt hole	Bolting		Outside diameter of neck	Bore diameters			Flange thickness				Chamfer	Collar thickness	Diameter of shoulders	Length			Neck Diameters			Comer Radius	Neck Thickness
	D	K	L	No	Size	A	B1	B2	B3	C1	C2	C3	C4	E	F	Ğ max	H1	H2	H3	N1	N2	N3	R	S
	Flange Type
	01,02,05,11,12,13,21					11 21* 34	01 12 32	02	04	01 02 04	11 12 13	21	05	02 04	32 34	05	12 13	11 34	11 34	11 34	12 13	21	11 12 13 21	11 34
10	90	60	14	4	M12	17,2	18,0	21	31	14	16		16	3	12	-	22	35	6	28	30	28	4	1,8
15	95	65	14	4	M12	21,3	22,0	25	35	14	16		16	3	12	-	22	38	6	32	35	32	4	2,0
20	105	75	14	4	Ml 2	26,9	27,5	31	42	16	18		18	4	14	-	26	40	6	40	45	40	4	2,3
25	115	85	14	4	M12	33,7	34,5	38	49	16	18		18	4	14	-	28	40	6	46	52	52	4	2,6
32	140	100	18	4	M16	42,4	43,5	47	59	18	18		18	5	14	-	30	42	6	56	60	60	6	2,6
40	150	110	18	4	M16	48,3	49,5	53	67	18	18		18	5	14	-	32	45	7	64	70	70	6	2,6
50	165	125	18	4	Ml 6	60,3	61,5	65	77	20	20		20	5	16	-	34	48	8	75	84	84	6	2,9
65	185	145	18	8	M16	76,1	77,5	81	96	22	22		22	6	16	55	38	52	10	90	104	104	6	2,9
80	200	160	18	8	M16	88,9	90,5	94	114	24	24		24	6	18	70	40	58	12	105	118	120	8	3,2
100	235	190	22	8	M20	114,3	116,0	120	138	26	24		24	6	20	90	44	65	12	134	145	142	8	3,6
125	270	220	26	8	M24	139,7	141,5	145	166	28	26		26	6	22	115	48	68	12	162	170	162	8	4,0
150	300	250	26	8	M24	168,3	170,5	174	194	30	28		28	6	24	140	52	75	12	192	200	192	12	4,5
200	375	320	30	12	M27	219,1	221,5	226	250	36	34		36	6	28	190	52	88	16	244	260	254	10	6,3
250	450	385	33	12	M30	273,0	276,5	281	312	42	38		38	8	30	235	60	105	18	306	312	312	12	7,1
300	515	450	33	16	M30	323,9	327,5	333	368	48	42		42	8	34	285	67	115	18	362	380	378	12	8,0
350	580	510	36	16	M33	355,6	359,5	365	418	54	46		46	8	36	330	72	125	20	408	424	432	12	8,8
400	660	585	39	16	M36	406,4	411,0	416	472	60	50		50	8	42	380	78	135	20	462	478	498	12	11,0
450	685	610	39	20	M36	457,0	462,0	467	510	66	57		57	8	46	425	84	135	20	500	522	522	12	12,5
500	755	670	42	20	M39	508,0	513,5	519	572	72	57		57	8	50	475	90	140	20	562	576	576	12	14,2
600	890	795	48	20	M45	610,0	616,5	622	676	84	72		72	8	54	575	100	150	20	666	686	686	12	16,0

* For flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter,

NOTE: The p/t ratings from EN 1092-1 apply only for flange types 05, 11, 12, 13 and 21 having nominal sizes up to and including DN 600. The p/t rating of all other flanges shall be agreed between the manufacturer and the purchaser.

EN 1092-1 Dimensions of PN 40 Flanges

EN 1092-1
Dimensions of PN 40 Flanges