ASME/ANSI B16.5 Blind Flanges

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Flanges

ASME/ANSI B16.5 Blind Flanges

[ AREAS-766 ]

ASME/ANSI B16.5 Class 1500 Blind Flanges

SPECIFICATIONS

▪ All dimensions are in inches

▪ These flanges will be furnished with a 1/4" raised face unless otherwise specified
▪ Flat face option available

Nominal Pipe Size	Outside Diameter	Thickness	Raised Face Diameter	Approximate Weight	Bolt Circle	Number of Holes	Diameter of Holes
Nominal Pipe Size	(O)	(T)	(R)	(lbs)	(C)	Number of Holes	Diameter of Holes
1/2	4.75	0.88	1.38	4	3.25	4	0.88
3/4	5.13	1.00	1.69	6	3.50	4	0.88
1	5.88	1.13	2.00	8	4.00	4	1.00
1 1/4	6.25	1.13	2.50	9	4.38	4	1.00
1 1/2	7.00	1.25	2.88	13	4.88	4	1.13
2	8.50	1.50	3.63	25	6.50	8	1.00
2 1/2	9.63	1.63	4.13	35	7.50	8	1.13
3	10.50	1.88	5.00	48	8.00	8	1.25
4	12.25	2.13	6.19	73	9.50	8	1.38
5	14.75	2.88	7.31	140	11.50	8	1.63
6	15.50	3.25	8.50	160	12.50	12	1.50
8	19.00	3.63	10.63	300	15.50	12	1.75
10	23.00	4.25	12.75	510	19.00	12	2.00
12	26.50	4.88	15.00	690	22.50	16	2.13
14	29.50	5.25	16.25	975	25.00	16	2.38
16	32.50	5.75	18.50	1300	27.75	16	2.63
18	36.00	6.38	21.00	1750	30.50	16	2.88
20	38.75	7.00	23.00	2225	32.75	16	3.13
24	46.00	8.00	27.25	3625	39.00	16	3.63

ASME/ANSI B16.5 Class 2500 Blind Flanges

SPECIFICATIONS

▪ All dimensions are in inches

▪ These flanges will be furnished with a 1/4" raised face unless otherwise specified
▪ Flat face option available

Nominal Pipe Size	Outside Diameter	Thickness	Raised Face Diameter	Approximate Weight	Bolt Circle	Number of Holes	Diameter of Holes
Nominal Pipe Size	(O)	(T)	(R)	(lbs)	(C)	Number of Holes	Diameter of Holes
1/2	5.25	1.19	1.38	7	3.50	4	0.88
3/4	5.50	1.25	1.69	8	3.75	4	0.88
1	6.25	1.38	2.00	11	4.25	4	1.00
1 1/4	7.25	1.50	2.50	17	5.13	4	1.13
1 1/2	8.00	1.75	2.88	23	5.75	4	1.25
2	9.25	2.00	3.63	39	6.75	8	1.13
2 1/2	10.50	2.25	4.13	56	7.75	8	1.25
3	12.00	2.63	5.00	86	9.00	8	1.38
4	14.00	3.00	6.19	135	10.75	8	1.63
5	16.50	3.63	7.31	225	12.75	8	1.88
6	19.00	4.25	8.50	345	14.50	8	2.13
8	21.75	5.00	10.63	530	17.25	12	2.13
10	26.50	6.50	12.75	1025	21.25	12	2.63
12	30.00	7.25	15.00	1300	24.38	12	2.88

ASME/ANSI B16.5 Class 600 Blind Flanges

SPECIFICATIONS

▪ All dimensions are in inches

▪ These flanges will be furnished with a 1/4" raised face unless otherwise specified
▪ Flat face option available

Nominal Pipe Size	Outside Diameter	Thickness	Raised Face Diameter	Approximate Weight	Bolt Circle	Number of Holes	Diameter of Holes
Nominal Pipe Size	(O)	(T)	(R)	(lbs)	(C)	Number of Holes	Diameter of Holes
1/2	3.75	0.56	1.38	2	2.63	4	0.63
3/4	4.63	0.63	1.69	3	3.25	4	0.75
1	4.88	0.69	2.00	4	3.50	4	0.75
1 1/4	5.25	0.81	2.50	5	3.88	4	0.75
1 1/2	6.13	0.88	2.88	8	4.50	4	0.88
2	6.50	1.00	3.63	10	5.00	8	0.75
2 1/2	7.50	1.13	4.13	15	5.88	8	0.88
3	8.25	1.25	5.00	20	6.63	8	0.88
3 1/2	9.00	1.38	5.50	29	7.25	8	1.00
4	10.75	1.50	6.19	41	8.50	8	1.00
5	13.00	1.75	7.31	68	10.50	8	1.13
6	14.00	1.88	8.50	86	11.50	12	1.13
8	16.50	2.19	10.63	140	13.75	12	1.25
10	20.00	2.50	12.75	230	17.00	16	1.38
12	22.00	2.63	15.00	295	19.25	20	1.38
14	23.75	2.75	16.25	355	20.75	20	1.50
16	27.00	3.00	18.50	495	23.75	20	1.63
18	29.25	3.25	21.00	630	25.75	20	1.75
20	32.00	3.50	23.00	810	28.50	24	1.75
22	34.25	3.75	25.25	1000	30.63	24	1.88
24	37.00	4.00	27.25	1250	33.00	24	2.00

ASME/ANSI B16.5 Class 300 Blind Flanges

SPECIFICATIONS

▪ All dimensions are in inches

▪ These flanges will be furnished with a 1/16" raised face unless otherwise specified
▪ Flat face option available

Nominal Pipe Size	Outside Diameter	Thickness	Raised Face Diameter	Approximate Weight	Bolt Circle	Number of Holes	Diameter of Holes
Nominal Pipe Size	(O)	(T)	(R)	(lbs)	(C)	Number of Holes	Diameter of Holes
1/2	3.75	0.56	1.38	2	2.63	4	0.63
3/4	4.63	0.63	1.69	3	3.25	4	0.75
1	4.88	0.69	2.00	3	3.50	4	0.75
1 1/4	5.25	0.75	2.50	4	3.88	4	0.75
1 1/2	6.13	0.81	2.88	6	4.50	4	0.88
2	6.50	0.88	3.63	8	5.00	8	0.75
2 1/2	7.50	1.00	4.13	12	5.88	8	0.88
3	8.25	1.13	5.00	16	6.63	8	0.88
3 1/2	9.00	1.19	5.50	21	7.25	8	0.88
4	10.00	1.25	6.19	27	7.88	8	0.88
5	11.00	1.38	7.31	35	9.25	8	0.88
6	12.50	1.44	8.50	50	10.63	12	0.88
8	15.00	1.63	10.63	81	13.00	12	1.00
10	17.50	1.88	12.75	124	15.25	16	1.13
12	20.50	2.00	15.00	185	17.75	16	1.25
14	23.00	2.13	16.25	250	20.25	20	1.25
16	25.50	2.25	18.50	295	22.50	20	1.38
18	28.00	2.38	21.00	395	24.75	24	1.38
20	30.50	2.50	23.00	505	27.00	24	1.38
22	33.00	2.63	25.25	640	29.25	24	1.63
24	36.00	2.75	27.25	790	32.00	24	1.63

ASME/ANSI B16.5 Class 150 Blind Flanges

SPECIFICATIONS

▪ All dimensions are in inches

▪ These flanges will be furnished with a 1/16" raised face unless otherwise specified
▪ Flat face option available

Nominal Pipe Size	Outside Diameter	Thickness	Raised Face Diameter	Approximate Weight	Bolt Circle	Number of Holes	Diameter of Holes
Nominal Pipe Size	(O)	(T)	(R)	(lbs)	(C)	Number of Holes	Diameter of Holes
1/2	3.50	0.44	1.38	1	2.38	4	0.63
3/4	3.88	0.50	1.69	2	2.75	4	0.63
1	4.25	0.56	2.00	2	3.13	4	0.63
1 1/4	4.63	0.63	2.50	3	3.50	4	0.63
1 1/2	5.00	0.69	2.88	4	3.88	4	0.63
2	6.00	0.75	3.63	5	4.75	4	0.75
2 1/2	7.00	0.88	4.13	7	5.50	4	0.75
3	7.50	0.94	5.00	9	6.00	4	0.75
3 1/2	8.50	0.94	5.50	13	7.00	8	0.75
4	9.00	0.94	6.19	17	7.50	8	0.75
5	10.00	0.94	7.31	20	8.50	8	0.88
6	11.00	1.00	8.50	26	9.50	8	0.88
8	13.50	1.13	10.63	45	11.75	8	0.88
10	16.00	1.19	12.75	70	14.25	12	1.00
12	19.00	1.25	15.00	110	17.00	12	1.00
14	21.00	1.38	16.25	140	18.75	12	1.13
16	23.50	1.44	18.50	180	21.25	16	1.13
18	25.00	1.56	21.00	220	22.75	16	1.25
20	27.50	1.69	23.00	285	25.00	20	1.25
22	29.50	1.81	25.25	355	27.25	20	1.38
24	32.00	1.88	27.25	430	29.50	20	1.38