ASME/ANSI B16.47 Series A blind flanges

ASME B16.47 series A blind flanges are stocked or available in the following range of materials and sizes for the oil, gas, petrochemical, and allied industries.size:26''-60'', Pressure: class150 - class900 .

class 150
class 300
class 400
class 600
class 900

ASME B16.47 Class 150 Series A Blind Flanges

(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/16″ raised face unless otherwise specified. For more alternate flange facings, please click here!

Nominal Pipe Size	Outside Diameter (O)	Bolt Circle (W)	Raised Face Diameter (R)	Number of Holes	Diameter of Holes	Minimum Thickness (T)	Approximate Weight (lbs)
26	34.25	31.75	29.50	24	1.38	2.69	702
28	36.50	34.00	31.50	28	1.38	2.81	833
30	38.75	36.00	33.75	28	1.38	2.94	982
32	41.75	38.50	36.00	28	1.62	3.19	1238
34	43.75	40.50	38.00	32	1.62	3.25	1384
36	46.00	42.75	40.25	32	1.62	3.56	1676
38	48.75	45.25	42.25	32	1.62	3.44	1819
40	50.75	47.25	44.25	36	1.62	3.56	2040
42	53.00	49.50	47.00	36	1.62	3.81	2380
44	55.25	51.75	49.00	40	1.62	4.00	2715
46	57.25	53.75	51.00	40	1.62	4.06	2961
48	59.50	56.00	53.50	44	1.62	4.25	3350
50	61.75	58.25	55.50	44	1.88	4.38	3716
52	64.00	60.50	57.50	44	1.88	4.56	4156
54	66.25	62.75	59.50	44	1.88	4.75	4639
56	68.75	65.00	62.00	48	1.88	4.88	5130
58	71.00	67.25	64.00	48	1.88	5.06	5675
60	73.00	69.25	66.00	52	1.88	5.19	6155

ASME B16.47 Class 300 Series A Blind Flanges

(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/16″ raised face unless otherwise specified. For more alternate flange facings, please click here!

Nominal Pipe Size	Outside Diameter (O)	Bolt Circle (W)	Raised Face Diameter (R)	Number of Holes	Diameter of Holes	Minimum Thickness (T)	Approximate Weight (lbs)
26	38.25	34.50	29.50	28	1.75	3.31	1079
28	40.75	37.00	31.50	28	1.75	3.56	1315
30	43.00	39.25	33.75	28	1.88	3.75	1545
32	45.25	41.50	36.00	28	2.00	3.94	1795
34	47.50	43.50	38.00	28	2.00	4.12	2068
36	50.00	46.00	40.25	32	2.12	4.38	2435
38	46.00	43.00	40.50	32	1.62	4.25	2001
40	48.75	45.50	42.75	32	1.75	4.50	2380
42	50.75	47.50	44.75	32	1.75	4.69	2689
44	53.25	49.75	47.00	32	1.88	4.88	3079
46	55.75	52.00	49.00	28	2.00	5.06	3500
48	57.75	54.00	51.25	32	2.00	5.25	3896
50	60.25	56.25	53.50	32	2.12	5.50	4442
52	62.25	58.25	55.50	32	2.12	5.69	4906
54	65.25	61.00	57.75	28	2.38	6.00	5684
56	67.25	63.00	59.75	28	2.38	6.06	6099
58	69.25	65.00	62.00	32	2.38	6.25	6669
60	71.25	67.00	64.00	32	2.38	6.44	7274

ASME B16.47 Class 400 Series A Blind Flanges

(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!

Nominal Pipe Size	Outside Diameter (O)	Bolt Circle (W)	Raised Face Diameter (R)	Number of Holes	Diameter of Holes	Minimum Thickness (T)	Approximate Weight (lbs)
26	38.25	34.50	29.50	28	1.88	3.88	1263
28	40.75	37.00	31.50	28	2.00	4.12	1520
30	43.00	39.25	33.75	28	2.12	4.38	1802
32	45.25	41.50	36.00	28	2.12	4.56	2075
34	47.50	43.50	38.00	28	2.12	4.81	2415
36	50.00	46.00	40.25	32	2.12	5.06	2815
38	47.50	44.00	40.75	32	1.88	4.88	2450
40	50.00	46.25	43.00	32	2.00	5.12	2849
42	52.00	48.25	45.00	32	2.00	5.25	3160
44	54.50	50.50	47.25	32	2.12	5.50	3635
46	56.75	52.75	49.50	36	2.12	5.75	4120
48	59.50	55.25	51.50	28	2.38	6.00	4725
50	61.75	57.50	53.62	32	2.38	6.25	5303
52	63.75	59.50	55.62	32	2.38	6.44	5823
54	67.00	62.25	57.88	28	2.62	6.75	6742
56	69.00	64.25	60.12	32	2.62	6.94	7352
58	71.00	66.25	62.12	32	2.62	7.12	7986
60	74.25	69.00	64.38	32	2.88	7.44	9126

ASME B16.47 Class 600 Series A Blind Flanges

(a)All dimensions are in inches.

(b)These flanges will be furnished with a 1/16″ raised face unless otherwise specified. For more alternate flange facings, please click here!

Nominal Pipe Size	Outside Diameter (O)	Bolt Circle (W)	Raised Face Diameter (R)	Number of Holes	Diameter of Holes	Minimum Thickness (T)	Approximate Weight (lbs)
26	40.00	36.00	29.50	28	2.00	4.94	1760
28	42.25	38.00	31.50	28	2.12	5.19	2061
30	44.50	40.25	33.75	28	2.12	5.50	2423
32	47.00	42.50	36.00	28	2.38	5.81	2858
34	49.00	44.50	38.00	28	2.38	6.06	3237
36	51.75	47.00	40.25	28	2.62	6.38	3800
38	50.00	45.75	41.50	28	2.38	6.12	3405
40	52.00	47.75	43.75	32	2.38	6.38	3838
42	55.25	50.50	46.00	28	2.62	6.75	4585
44	57.25	52.50	48.25	32	2.62	7.00	5105
46	59.50	54.75	50.25	32	2.62	7.31	5758
48	62.75	57.50	52.50	32	2.88	7.69	6737
50	65.75	60.00	54.50	28	3.12	8.00	7695
52	67.75	62.00	56.50	32	3.12	8.25	8425
54	70.00	64.25	58.75	32	3.12	8.56	9333
56	73.00	66.75	60.75	32	3.38	8.88	10,530
58	75.00	68.75	63.00	32	3.38	9.12	11,414
60	78.50	71.75	65.25	28	3.62	9.56	13,108

ASME B16.47 Class 900 Series A Blind Flanges

(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!

Nominal Pipe Size	Outside Diameter (O)	Bolt Circle (W)	Raised Face Diameter (R)	Number of Holes	Diameter of Holes	Minimum Thickness (T)	Approximate Weight (lbs)
26	42.75	37.50	29.50	20	2.88	6.31	2565
28	46.00	40.25	31.50	20	3.12	6.75	3178
30	48.50	42.75	33.75	20	3.12	7.18	3759
32	51.75	45.50	36.00	20	3.38	7.62	4541
34	55.00	48.25	38.00	20	3.62	8.06	5425
36	57.50	50.75	40.25	20	3.62	8.44	6210
38	57.50	50.75	43.25	20	3.62	8.50	6253
40	59.50	52.75	45.75	24	3.62	8.81	6940
42	61.50	54.75	47.75	24	3.62	9.12	7675
44	64.88	57.62	50.00	24	3.88	9.56	8955
46	68.25	60.50	52.50	24	4.12	10.06	10,426
48	70.25	62.50	54.50	24	4.12	10.38	11,398

Latest Blog Posts