Types of flanges (typ) up to DIN EN 1092-1

Typ 01: Plate (slip-on) flanges for welding	Typ 13: Hubbed threaded flanges
Typ 02: Loose plate flanges with weld-on plate collar	Typ 21: Integral flanges
Typ 04: Loose plate flanges with weld-neck collar	Typ 32: Weld-on plate collars
Typ 05: Blank (blind) flanges	Typ 33: Lapped pipe ends
Typ 11: Weld-neck flanges	Typ 34: Weld-neck collars
Typ 12: Hubbed slip-on flanges for welding

D: Outside Diameter K: Diameter of Bolt Circle L: Diameter of Bolt Hole

A: Outside Diameter of Neck E: Chamfer F: Collar thickness

G max: Diameter of Shoulders R: Corner Radius N: Neck Diameter S: Neck Thickness (Preferred value)

DN	Mating dimensions					A	Bore Diameter			Flange Thickness				E	F	G max	Length			Neck Diameters			R	S
	D	K	L	Bolting
				No	Size		B1	B2	B3	C1	C2	C3	C4				H1	H2	H3	N1	N2	N3
	Flange type
	01, 02, 05, 11, 12, 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	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	25	35	14	16		16	3	12	-	22	38	6	32	35	32	4	2
20	105	75	14	4	M12	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	M16	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	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
150	300	250	26	8	M24	168.3	170.5	174	194	30	28		28	6	24	140	52	75	12	192	200	192	10	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	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
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	416	472	60	50		50	8	42	380	78	135	20	462	478	498	12	11
450	685	610	39	20	M36	457	462	467	510	66	57		57	8	46	425	84	135	20	500	522	522	12	12.5
500	755	670	42	20	M39	508	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	616.5	622	676	84	72		72	8	54	575	100	150	20	666	686	686	12	16

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

Note : The p/t rating from EN 1092-1 apply only for flange type 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.