Dimensions AWWA‎‏ C207 D
Carbon Steel‎‏ Blind‎‏ Flanges

Carbon Steel Flanges

AWWA Class D Carbon Steel Blind Flanges are manufactured to meet AWWA C207 and ANSI 150lbs drill pattern specifications. At atmospheric temperature, this series is pressure rated for up to 175psi for 4in to 12in flanges, and 150psi for flanges 14in and larger.
Size	O.D.	B.H.C.	B.H. Dia.	B.H. No.	THK	Weight Lbs
4	9.00	7.50	0.750	8	0.625	10.6
5	10.00	8.50	0.875	8	0.650	13.6
6	11.00	9.50	0.875	8	0.693	17.7
8	13.50	11.75	0.875	8	0.812	31.8
10	16.00	14.25	1.000	12	0.953	51.7
12	19.00	17.00	1.000	12	1.117	86.7
14	21.00	18.75	1.125	12	1.133	107.4
16	23.50	21.25	1.125	16	1.265	149.8
18	25.00	22.75	1.250	16	1.331	177.7
20	27.50	25.00	1.250	20	1.448	233.6
22	29.50	27.25	1.375	20	1.568	290.5
24	32.00	29.50	1.375	20	1.661	364.5
26	34.25	31.75	1.375	24	1.786	448.2
28	36.50	34.00	1.375	28	1.906	542.6
30	38.75	36.00	1.375	28	2.008	647.3
32	41.75	38.50	1.625	28	2.150	798.6
34	43.75	40.50	1.625	32	2.252	916.9
36	46.00	42.75	1.625	32	2.370	1071.4
38	48.75	45.25	1.625	32	2.506	1278.2
40	50.75	47.25	1.625	36	2.609	1440.1
42	53.00	49.50	1.625	36	2.729	1648.1
44	55.25	51.75	1.625	40	2.849	1868.2
46	57.25	53.75	1.625	40	2.952	2083.7
48	59.50	56.00	1.625	44	3.072	2340.7
50	61.75	58.25	1.875	44	3.196	2601.9
52	64.00	60.50	1.875	44	3.315	2907.5
54	66.25	62.75	1.875	44	3.435	3236.7
60	73.00	69.25	1.875	52	3.779	4327.6
66	80.00	76.00	1.875	52	4.136	5722.2
72	86.50	82.50	1.875	60	4.480	7249.0

Notes..

Dimensions are in inches unless otherwise specified.
O.D. = Outside Diameter
B.H.C. = Bolt Hole Circle
B.H. Dia. = Bolt Hole Diameter
B.H. No. = Number of Bolt Holes
THK = Thickness
Steel material meets the requirements of AWWA C207 specifications, however, other materials are available.

Reference(s) ..
www.awwa.org
https://apiint.com