Stainless steel flanges ASME B16.5-2013

Class 150 / 300 / 600 / 900 / 1500 / 2500

The ASME B16.5 standard sets specifications on circular flanges made of Class 150 and Class 2500 steel and with nominal dimensions NPS ½ to 24.

It defines the types of flanges and their joint sizes, dimensions, tolerances, threads, bolt dimensions, conditions of joint faces of the flanges, marking, materials and relationships between pressure and temperature.

Type 01

Type 01 - Flat-face flange to be welded

Type 05

Type 11

Type 12

Type 13

Type 14

Type 15

Type 21

Class 150

Class 150 Flange - DN 15 to 600 - ASME B16.5

Class 150 Flange - Type 01 - Flat-face flange to be welded

Class 150 Flange - Type 11 - Flange with butt-weld neck

Class 150 Flange - Type 12 - Slip-on and weld neck flange

Class 150 Flange - Type 13 - Threaded flange with neck

Class 150 Flange - Type 14 - Socket weld and weld neck flange

Class 150 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 150 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 300

Class 300 Flange - DN 15 to 600 - ASME B16.5

Class 300 Flange - Type 11 - Flange with butt-weld neck

Class 300 Flange - Type 12 - Slip-on and weld neck flange

Class 300 Flange - Type 13 - Threaded flange with neck

Class 300 Flange - Type 14 - Socket weld and weld neck flange

Class 300 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 300 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 600

Class 600 Flange - DN 15 to 600 - ASME B16.5

Class 600 Flange - Type 11 - Flange with butt-weld neck

Class 600 Flange - Type 12 - Slip-on and weld neck flange

Class 600 Flange - Type 13 - Threaded flange with neck

Class 600 Flange - Type 14 - Socket weld and weld neck flange

Class 600 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 600 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 900

Class 900 Flange - DN 80 to 600 - ASME B16.5

Class 900 Flange - Type 11 - Flange with butt-weld neck

Class 900 Flange - Type 12 - Slip-on and weld neck flange

Class 900 Flange - Type 13 - Threaded flange with neck

Class 900 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 900 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 1500

Class 1500 Flange - DN 15 to 600 - ASME B16.5

Class 1500 Flange - Type 11 - Flange with butt-weld neck

Class 1500 Flange - Type 12 - Slip-on and weld neck flange

Class 1500 Flange - Type 13 - Threaded flange with neck

Class 1500 Flange - Type 14 - Socket weld and weld neck flange

Class 1500 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 1500 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 2500

Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Bolts			Flange thickness	Ø of bore
Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Ø of bolt holes	Number	Nominal size	Flange thickness	Ø of bore
NPS	DN	D	K	L			C1	B1
NPS	DN	mm	mm	Pouce (mm)		Pouce	mm	mm
1/2	15	89	60,3	5/8 (15,9)	4	1/2	12,0	22,4
3/4	20	98	69,8	5/8 (15,9)	4	1/2	14,0	27,7
1	25	108	79,4	5/8 (15,9)	4	1/2	16,0	34,5
1 1/4 a)	32	117	88,9	5/8 (15,9)	4	1/2	18,0	43,2
1 1/2	40	127	98,4	5/8 (15,9)	4	1/2	19,0	49,5
2	50	152	120,6	3/4 (19,0)	4	5/8	21,0	62,0
2 1/2 a)	65	178	139,7	3/4 (19,0)	4	5/8	24,0	74,7
3	80	190	152,4	3/4 (19,0)	4	5/8	26,0	90,7
4	100	229	190,5	3/4 (19,0)	8	5/8	27,0	116,1
5 a)	125	254	215,9	7/8 (22,2)	8	3/4	28,0	143,8
6	150	279	241,3	7/8 (22,2)	8	3/4	31,0	170,7
8	200	343	298,4	7/8 (22,2)	8	3/4	34,0	221.5
10	250	406	362,0	1 (25,4)	12	7/8	38,0	276,4
12	300	483	431,8	1 (25,4)	12	7/8	42,0	327,2
14	350	533	476,2	1 1/8 (28,6)	12	1	43,0	359,2
16	400	597	539,8	1 1/8 (28,6)	16	1	48,0	410,5
18	450	635	577,8	1 1/4 (31,8)	16	1 1/8	56,0	461,8
20	500	698	635,0	1 1/4(31,8)	20	1 1/8	59,0	513,1
24	600	813	749,3	1 3/8 (34,9)	20	1 1/4	62,0	616,0
a) It is useful to avoid using these dimensions in new constructions.

Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Bolts			Flange thickness	Ø of shoulder
Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Ø of bolt holes	Number	Nominal size	Flange thickness	Ø of shoulder
NPS	DN	D	K	L			C2	G
NPS	DN	mm	mm	Pouce (mm)		Pouce	mm	mm
1/2	15	89	60,3	5/8 (15,9)	4	1/2	11,1	-
3/4	20	98	69,8	5/8 (15,9)	4	1/2	12,7	-
1	25	108	79,4	5/8 (15,9)	4	1/2	14,3	-
1 1/4 a)	32	117	88,9	5/8 (15,9)	4	1/2	15,9	-
1 1/2	40	127	98,4	5/8 (15,9)	4	1/2	17,5	-
2	50	152	120,6	3/4 (19,0)	4	5/8	19,0	-
2 1/2 a)	65	178	139,7	3/4 (19,0)	4	5/8	22,2	38
3	80	190	152,4	3/4 (19,0)	4	5/8	23,8	51
4	100	229	190,5	3/4 (19,0)	8	5/8	23,8	76
5 a)	125	254	215,9	7/8 (22,2)	8	3/4	23,8	102
6	150	279	241,3	7/8 (22,2)	8	3/4	25,4	127
8	200	343	298,4	7/8 (22,2)	8	3/4	28,6	200
10	250	406	362,0	1 (25,4)	12	7/8	30,2	225
12	300	483	431,8	1 (25,4)	12	7/8	31,8	279
14	350	533	476,2	1 1/8 (28,6)	12	1	34,9	311
16	400	597	539,8	1 1/8 (28,6)	16	1	36,5	362
18	450	635	577,8	1 1/4 (31,8)	16	1 1/8	39,7	413
20	500	698	635,0	1 1/4 (31,8)	20	1 1/8	42,9	463
24	600	813	749,3	1 3/8 (34,9)	20	1 1/4	47,6	565
a) It is useful to avoid using these dimensions in new constructions.

Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Bolts			Flange thickness	Ø of base neck	Ø of neck to the right of the weld	Height of the neck	Ø of bore	Joint radius of the neck (min.)
Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Ø of bolt holes	Number	Nominal size	Flange thickness	Ø of base neck	Ø of neck to the right of the weld	Height of the neck	Ø of bore	Joint radius of the neck (min.)
NPS	DN	D	K	L			C2	N	A	H3	B3	R1
NPS	DN	mm	mm	Pouce (mm)		Pouce	mm	mm	mm	mm	mm	mm
1/2	15	89	60,3	5/8 (15,9)	4	1/2	11,1	30	21,3	47,6	15,8	3
3/4	20	98	69,8	5/8 (15,9)	4	1/2	12,7	38	26,7	52,4	20,8	3
1	25	108	79,4	5/8 (15,9)	4	1/2	14,3	49	33,4	55,6	26,7	3
1 1/4 a)	32	117	88,9	5/8 (15,9)	4	1/2	15,9	59	42,2	57,2	35,1	3
1 1/2	40	127	98,4	5/8 (15,9)	4	1/2	17,5	65	48,3	61,9	40,9	3
2	50	152	120,6	3/4 (19,0)	4	5/8	19,0	78	60,3	63,5	52,6	3
2 1/2 a)	65	178	139,7	3/4 (19,0)	4	5/8	22,2	90	73,0	69,9	62,7	3
3	80	190	152,4	3/4 (19,0)	4	5/8	23,8	108	88,9	69,9	78,0	3
4	100	229	190,5	3/4 (19,0)	8	5/8	23,8	135	114,3	76,2	102,4	3
5 a)	125	254	215,9	7/8 (22,2)	8	3/4	23,8	164	141,3	88,9	128,3	6,5
6	150	279	241,3	7/8 (22,2)	8	3/4	25,4	192	168,3	88,9	154,2	6,5
8	200	343	298,4	7/8 (22,2)	8	3/4	28,6	246	219,1	101,6	202,7	6,5
10	250	406	362,0	1 (25,4)	12	7/8	30,2	305	273,0	101,6	254,5	6,5
12	300	483	431,8	1 (25,4)	12	7/8	31,8	365	323,9	114,3	304,8	9,5
14	350	533	476,2	1 1/8 (28,6)	12	1	34,9	400	355,6	127,0	To be specified by the buyer	9,5
16	400	597	539,8	1 1/8 (28,6)	16	1	36,5	457	406,4	127,0		9,5
18	450	635	577,8	1 1/4 (31,8)	16	1 1/8	39,7	505	457,2	139,7		9,5
20	500	698	635,0	1 1/4 (31,8)	20	1 1/8	42,9	559	508,0	144,5		9,5
24	600	813	749,3	1 3/8 (34,9)	20	1 1/4	47,6	664	609,6	152,4		9,5
a) It is useful to avoid using these dimensions in new constructions.

Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Bolts			Flange thickness	Ø of base neck	Height of the neck	Ø of bore	Joint radius of the neck (min.)
Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Ø of bolt holes	Number	Nominal size	Flange thickness	Ø of base neck	Height of the neck	Ø of bore	Joint radius of the neck (min.)
NPS	DN	D	K	L			C2	N	H1	B1	R1
NPS	DN	mm	mm	Pouce (mm)		Pouce	mm	mm	mm	mm	mm
1/2	15	89	60,3	5/8 (15,9)	4	1/2	11,1	30	15,9	22,4	3
3/4	20	98	69,8	5/8 (15,9)	4	1/2	12,7	38	15,9	27,7	3
1	25	108	79,4	5/8 (15,9)	4	1/2	14,3	49	17,5	34,5	3
1 1/4 a)	32	117	88,9	5/8 (15,9)	4	1/2	15,9	59	20,6	43,2	3
1 1/2	40	127	98,4	5/8 (15,9)	4	1/2	17,5	65	22,2	49,5	3
2	50	152	120,6	3/4 (19,0)	4	5/8	19,0	78	25,4	62,0	3
2 1/2 a)	65	178	139,7	3/4 (19,0)	4	5/8	22,2	90	28,6	74,7	3
3	80	190	152,4	3/4 (19,0)	4	5/8	23,8	108	30,2	90,7	3
4	100	229	190,5	3/4 (19,0)	8	5/8	23,8	135	33,3	116,1	3
5 a)	125	254	215,9	7/8 (22,2)	8	3/4	23,8	164	36,5	143,8	6,5
6	150	279	241,3	7/8 (22,2)	8	3/4	25,4	192	39,7	170,7	6,5
8	200	343	298,4	7/8 (22,2)	8	3/4	28,6	246	44,5	221.5	6,5
10	250	406	362,0	1 (25,4)	12	7/8	30,2	305	49,2	276,4	6,5
12	300	483	431,8	1 (25,4)	12	7/8	31,8	365	55,6	327,2	9,5
14	350	533	476,2	1 1/8 (28,6)	12	1	34,9	400	57,2	359,2	9,5
16	400	597	539,8	1 1/8 (28,6)	16	1	36,5	457	63,5	410,5	9,5
18	450	635	577,8	1 1/4 (31,8)	16	1 1/8	39,7	505	68,3	461,8	9,5
20	500	698	635,0	1 1/4 (31,8)	20	1 1/8	42,9	559	73,0	513,1	9,5
24	600	813	749,3	1 3/8 (34,9)	20	1 1/4	47,6	664	82,6	616,0	9,5
a) It is useful to avoid using these dimensions in new constructions.

Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Bolts			Flange thickness	Ø of base neck	Height of the neck	Minimum thread length	Joint radius of the neck (min.)
Nominal diameter		Ext. Ø of flange	Ø of drilling circle	Ø of bolt holes	Number	Nominal size	Flange thickness	Ø of base neck	Height of the neck	Minimum thread length	Joint radius of the neck (min.)
NPS	DN	D	K	L			C2	N	H1	T	R1
NPS	DN	mm	mm	Pouce (mm)		Pouce	mm	mm	mm	mm	mm
1/2	15	89	60,3	5/8 (15,9)	4	1/2	11,1	30	15,9	15,9	3
3/4	20	98	69,8	5/8 (15,9)	4	1/2	12,7	38	15,9	15,9	3
1	25	108	79,4	5/8 (15,9)	4	1/2	14,3	49	17,5	17,5	3
1 1/4 a)	32	117	88,9	5/8 (15,9)	4	1/2	15,9	59	20,6	20,6	3
1 1/2	40	127	98,4	5/8 (15,9)	4	1/2	17,5	65	22,2	22,2	3
2	50	152	120,6	3/4 (19,0)	4	5/8	19,0	78	25,4	25,4	3
2 1/2 a)	65	178	139,7	3/4 (19,0)	4	5/8	22,2	90	28,6	28,6	3
3	80	190	152,4	3/4 (19,0)	4	5/8	23,8	108	30,2	30,2	3
4	100	229	190,5	3/4 (19,0)	8	5/8	23,8	135	33,3	33,3	3
5 a)	125	254	215,9	7/8 (22,2)	8	3/4	23,8	164	36,5	36,5	6,5
6	150	279	241,3	7/8 (22,2)	8	3/4	25,4	192	39,7	39,7	6,5
8	200	343	298,4	7/8 (22,2)	8	3/4	28,6	246	44,5	-	6,5
10	250	406	362,0	1 (25,4)	12	7/8	30,2	305	49,2	-	6,5
12	300	483	431,8	1 (25,4)	12	7/8	31,8	365	55,6	-	9,5
14	350	533	476,2	11/8 (28,6)	12	1	34,9	400	57,2	-	9,5
16	400	597	539,8	11/8 (28,6)	16	1	36,5	457	63,5	-	9,5
18	450	635	577,8	1 1/4 (31,8)	16	1 1/8	39,7	505	68,3	-	9,5
20	500	698	635,0	1 1/4 (31,8)	20	1 1/8	42,9	559	73,0	-	9,5
24	600	813	749,3	1 3/8 (34,9)	20	1 1/4	47,6	664	82,6	-	9,5
a) It is useful to avoid using these dimensions in new constructions.

Dimension	Types of flange		Tolerances mm	Nominal diameter Pouce
Diameter of neck at the end weld A	11, 21		+ 2,4 – 0,8	≤ 5
Diameter of neck at the end weld A	11, 21		+ 4,0 – 0,8	> 5
Diameter of bore B1, B2	01, 12, 14, 15		+ 0,8 – 0	≤ 10
Diameter of bore B1, B2	01, 12, 14, 15		+ 1,6 – 0	> 10
Diameter of bore B3	11, 14		± 0,8	≤ 10
			± 1,6	> 10 ≤ 18
			+ 3,2 – 1,6	> 18
Height of the neck H1, H2, H3	11, 12, 13, 14, 15		± 1,6	≤ 10
Height of the neck H1, H2, H3	11, 12, 13, 14, 15		± 3,2	> 10
Flange thickness C	All types		+ 3,2 0	≤ 18
Flange thickness C	All types		+ 4,8 0	> 18
External diameter of the raised face 0	All types	1,6 mm Raised face	± 0,8 mm	All
External diameter of the raised face 0	All types	6,4 mm Raised face	± 0,4 mm	All
Dimensions of faces M, Q, W, Y et Z	All types	Faces of C, D, E, F type joints	± 0,4 mm	All
Depth of the groove E for ring joint	All types	Faces of C type joints	+ 4,8 – 0	All
Thickness of groove F			± 0,2 mm
Diameter at the centre of groove P			± 0,13 mm
Angle 23°			± ½°
Diameter of drilling circle K	All types		± 1,6 mm	All
Spacing between two adjacent bolt holes	All types		± 0,8 mm	All
Eccentricity between the drilling circle and the diameters of the machined faces	All types		0,8 mm	≤ 2½
	All types		1,6 mm	> 2½
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange	All types		1°	All

Masses of Class 150 flanges (kg)
DN	Type
DN	01	05	11	12	13	14	15
15	0,42	0,42	0,49	0,39	0,41	0,40	0,45
20	0,61	0,61	0,72	0,56	0,57	0,57	0,62
25	0,85	0,86	1,05	0,78	0,80	0,79	0,85
32	1,11	1,16	1,38	1,02	1,05	1,05	1,10
40	1,39	1,53	1,77	1,32	1,37	1,35	1,41
50	2,18	2,41	2,64	2,05	2,12	2,10	2,17
65	3,46	3,95	4,21	3,28	3,40	3,38	3,45
80	4,05	4,90	5,04	3,83	3,99	3,96	3,99
100	5,76	7,03	7,13	5,33	5,56	-	5,53
125	6,63	8,63	8,98	6,08	6,45	-	6,26
150	8,29	11,30	11,00	7,42	7,90	-	7,67
200	13,15	19,65	18,24	12,12		-	12,46
250	18,39	28,74	24,94	16,46	-	-	16,87
300	29,89	43,43	38,28	26,28	-	-	26,89
350	37,48	57,99	50,35	34,49	-	-	39,47
400	50,52	76,05	62,55	44,85	-	-	51,75
450	58,99	93,72	71,07	48,89	-	-	57,13
500	72,86	122,27	87,56	61,77	-	-	71,59
600	96,74	185,27	119,59	87,17	-	-	99,52
Calculated masses of raised face flanges must be used only as a guide.

Masses of Class 300 flanges (kg)
DN	Type
DN	01	05	11	12	13	14	15
15	-	0,64	0,77	0,64	0,66	0,66	0,70
20	-	1,10	1,30	1,11	1,13	1,14	1,21
25	-	1,39	1,64	1,36	1,40	1,41	1,47
32	-	1,78	2,09	1,67	1,72	1,72	1,79
40	-	2,67	3,00	2,51	2,57	2,57	2,66
50	-	3,17	3,52	2,87	2,96	2,97	3,01
65	-	4,83	5,32	4,30	4,46	4,49	4,48
80	-	6,84	7,19	5,87	6,10	6,17	6,07
100	-	11,52	11,63	9,64	9,98	-	9,94
125	-	15,51	15,52	12,14	12,65	-	12,42
150	-	20,95	19,91	15,69	16,32	-	16,14
200	-	34,35	30,89	24,21	-	-	24,77
250	-	53,23	44,34	33,97	-	-	39,23
300	-	78,86	64,04	49,92	-	-	56,60
350	-	105,40	89,10	69,51	-	-	81,63
400	-	137,77	111,00	88,49	-	-	105,12
450	-	175,18	136,08	108,38	-	-	128,16
500	-	221,43	164,68	134,30	-	-	158,03
600	-	338,78	238,07	201,06	-	-	236,32
Calculated masses of raised face flanges must be used only as a guide.

Masses of Class 600 flanges (kg)
DN	Type
DN	01	05	11	12	13	14	15
15	-	0,76	0,89	0,74	0,76	0,76	0,70
20	-	1,27	1,49	1,26	1,29	1,29	1,21
25	-	1,61	1,88	1,53	1,57	1,58	1,47
32	-	2,22	2,55	2,02	2,08	2,09	1,93
40	-	3,27	3,62	2,99	3,06	3,08	2,86
50	-	4,14	4,49	3,61	3,73	3,78	3,42
65	-	6,10	6,61	5,24	5,44	5,53	5,00
80	-	8,51	8,85	7,05	7,33	7,49	6,70
100	-	17,27	17,92	14,51	14,94	-	14,00
125	-	29,38	30,01	24,38	25,05	-	23,70
150	-	36,15	36,20	28,84	29,71	-	28,10
200	-	58,89	55,59	43,37	-	-	42,33
250	-	97,54	89,52	70,26	-	-	75,37
300	-	124,21	107,02	84,25	-	-	90,66
350	-	151,00	126,83	98,87	-	-	108,32
400	-	213,77	176,16	142,20	-	-	155,50
450	-	272,28	210,79	173,52	-	-	188,28
500	-	349,81	262,82	220,69	-	-	242,23
600	-	533,60	368,57	312,90	-	-	346,29
Calculated masses of raised face flanges must be used only as a guide.

Masses of Class 900 flanges (kg)
DN	Type
DN	01	05	11	12	13	14	15
80	-	13,07	14,02	11,58	11,91	-	11,22
100	-	22,10	23,12	19,73	20,27	-	19,20
125	-	36,46	37,05	31,88	32,75	-	31,17
150	-	47,44	49,23	41,14	42,25	-	40,40
200	-	82,53	84,17	70,72	-	-	72,75
250	-	122,44	122,85	100,45	-	-	105,98
300	-	173,67	162,88	133,13	-	-	141,89
350	-	206,09	186,20	153,24	-	-	162,40
400	-	259,52	224,24	185,08	-	-	200,10
450	-	366,87	301,27	258,06	-	-	279,92
500	-	463,67	373,75	316,70	-	-	351,14
600	-	875,65	681,13	604,92	-	-	672,06
Calculated masses of raised face flanges must be used only as a guide.

Masses of Class 1500 flanges (kg)
DN	Type
DN	01	05	11	12	13	14	15
15	-	1,78	1,91	1,75	1,78	1,79	1,72
20	-	2,41	2,59	2,33	2,36	2,39	2,28
25	-	3,56	3,77	3,42	3,48	3,53	3,36
32	-	4,16	4,42	3,93	4,01	4,07	3,84
40	-	5,78	6,08	5,40	5,50	5,57	5,27
50	-	10,08	11,14	9,87	10,05	10,22	9,67
65	-	13,93	15,34	13,62	13,92	14,20	13,37
80	-	19,18	20,34	-	18,35	-	17,55
100	-	29,93	30,56	-	28,46	-	27,23
125	-	58,51	58,15	-	53,06	-	51,17
150	-	72,02	70,16	-	62,78	-	60,51
200	-	121,91	119,78	-	-	-	102,32
250	-	210,62	204,65	-	-	-	180,64
300	-	315,83	304,04	-	-	-	284,28
350	-	420,57	399,73	-	-	-	383,75
400	-	559,16	508,66	-	-	-	493,98
450	-	759,99	659,54	-	-	-	636,46
500	-	965,37	806,96	-	-	-	765,15
600	-	1 556,84	1 278,03	-	-	-	1 220,79
Calculated masses of raised face flanges must be used only as a guide.

Masses of Class 2500 flanges (kg)
DN	Type
DN	01	05	11	12	13	14	15
15	-	2,98	3,23	-	2,97	-	2,91
20	-	3,52	3,90	-	3,51	-	3,42
25	-	4,99	5,53	-	4,91	-	4,78
32	-	7,34	8,19	-	7,23	-	7,04
40	-	10,38	11,48	-	10,12	-	9,86
50	-	15,58	17,22	-	15,05	-	14,63
65	-	22,68	25,44	-	21,88	-	21,25
80	-	34,88	38,92	-	33,18	-	32,26
100	-	54,11	60,07	-	50,74	-	49,35
125	-	90,76	100,27	-	84,40	-	82,20
150	-	141,64	156,37	-	130,14	-	127,45
200	-	214,06	233,79	-	-	-	186,30
250	-	410,84	445,71	-	-	-	353,61
300	-	592,20	628,13	-	-	-	501,81
Calculated masses of raised face flanges must be used only as a guide.

Stainless steel flanges ASME B16.5-2013

Class 150 / 300 / 600 / 900 / 1500 / 2500

Type 01 - Flat-face flange to be welded

Type 05 - Blind flange

Type 11 - Flange with butt-weld neck

Type 12 - Slip-on and weld neck flange

Type 13 - Threaded flange with neck

Type 14 - Socket weld and weld neck flange

Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Type 21 - Integral flange

Class 150 Flange - DN 15 to 600 - ASME B16.5

Class 150 Flange - Type 01 - Flat-face flange to be welded

Class 150 Flange - Type 05 - Blind flange

Class 150 Flange - Type 11 - Flange with butt-weld neck

Class 150 Flange - Type 12 - Slip-on and weld neck flange

Class 150 Flange - Type 13 - Threaded flange with neck

Class 150 Flange - Type 14 - Socket weld and weld neck flange

Class 150 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 150 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 300 Flange - DN 15 to 600 - ASME B16.5

Class 300 Flange - Type 05 - Blind flange

Class 300 Flange - Type 11 - Flange with butt-weld neck

Class 300 Flange - Type 12 - Slip-on and weld neck flange

Class 300 Flange - Type 13 - Threaded flange with neck

Class 300 Flange - Type 14 - Socket weld and weld neck flange

Class 300 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 300 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 600 Flange - DN 15 to 600 - ASME B16.5

Class 600 Flange - Type 05 - Blind flange

Class 600 Flange - Type 11 - Flange with butt-weld neck

Class 600 Flange - Type 12 - Slip-on and weld neck flange

Class 600 Flange - Type 13 - Threaded flange with neck

Class 600 Flange - Type 14 - Socket weld and weld neck flange

Class 600 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 600 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 900 Flange - DN 80 to 600 - ASME B16.5

Class 900 Flange - Type 05 - Blind flange

Class 900 Flange - Type 11 - Flange with butt-weld neck

Class 900 Flange - Type 12 - Slip-on and weld neck flange

Class 900 Flange - Type 13 - Threaded flange with neck

Class 900 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 900 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 1500 Flange - DN 15 to 600 - ASME B16.5

Class 1500 Flange - Type 05 - Blind flange

Class 1500 Flange - Type 11 - Flange with butt-weld neck

Class 1500 Flange - Type 12 - Slip-on and weld neck flange

Class 1500 Flange - Type 13 - Threaded flange with neck

Class 1500 Flange - Type 14 - Socket weld and weld neck flange

Class 1500 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 1500 Flange - Type 21 - Integral flange

Tolerances

Masse

Class 2500 Flange - DN 15 to 300 - ASME B16.5

Class 2500 Flange - Type 05 - Blind flange

Class 2500 Flange - Type 11 - Flange with butt-weld neck

Class 2500 Flange - Type 13 - Threaded flange with neck

Class 2500 Flange - Type 15 - Rotating flange with neck for the end of the pipework with a drawn neck

Class 2500 Flange - Type 21 - Integral flange

Tolerances

Masse

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