CAB Flange Specifications:
AWWA C207-07 B-Rings & Blinds

86 P.S.I.
Dimensions in Inches

Printable Spec Sheet

 

Nominal size	Outside Diameter (OD)	Slip-on Bore (ID)	No. of Bolt Holes	Diameter Of Holes	Bolt Circle (BC)	Thickness (T)		Weight Each (lbs)
						Slip-on	Blind	Slip-on	Blind
4	9.00	4.57	8	0.750	7.50	0.625	0.625	7.70	10.6
5	10.00	5.66	8	0.875	8.50	0.625	0.625	8.80	13.1
6	11.00	6.72	8	0.875	9.50	0.688	0.688	10.70	17.6
8	13.50	8.72	8	0.875	11.75	0.688	0.688	15.30	27.0
10	16.00	10.88	12	1.000	14.25	0.688	0.688	19.20	37.4
12	19.00	12.88	12	1.000	17.00	0.688	0.719	28.00	55.8
14	21.00	14.19	12	1.125	18.75	0.688	0.791	34.30	75.0
16	23.50	16.19	16	1.125	21.25	0.688	0.892	41.30	105.6
18	25.00	18.19	16	1.250	22.75	0.688	0.950	41.50	126.8
20	27.50	20.19	20	1.250	25.00	0.688	1.040	48.50	167.8
22	29.50	22.19	20	1.375	27.25	0.750	1.132	56.70	209.7
24	32.00	24.19	20	1.375	29.50	0.750	1.216	66.90	266.9
26	34.25	26.25	24	1.375	31.75	0.812	1.307	79.30	328.0
28	36.50	28.25	28	1.375	34.00	0.875	1.398	93.70	398.0
30	38.75	30.25	28	1.375	36.00	0.875	1.477	103.90	476.1
32	41.75	32.25	28	1.625	38.50	0.938	1.581	131.30	587.2
34	43.75	34.25	32	1.625	40.50	0.938	1.661	137.00	676.2
36	46.00	36.25	32	1.625	42.75	1.000	1.751	159.60	791.6
38	48.75	38.25	32	1.625	45.25	1.000	1.853	184.50	945.1
40	50.75	40.25	36	1.625	47.25	1.000	1.933	191.50	1067.0
42	53.00	42.25	36	1.625	49.50	1.125	2.023	232.50	1221.8
44	55.25	44.25	40	1.625	51.75	1.125	2.114	247.60	1386.3
48	59.50	48.25	44	1.625	56.00	1.250	2.285	304.80	1741.1
54	66.25	54.25	44	1.875	62.75	1.375	2.559	395.10	2411.3
60	73.00	60.25	52	1.875	69.25	1.500	2.820	506.00	3229.4
66	80.00	66.25	52	1.875	76.00	1.625	3.092	661.00	4277.8
72	86.50	72.25	60	1.875	82.50	1.750	3.353	798.80	5425.4
78	93.00	78.25	64	2.125	89.00	2.000	*	995.60	*
84	99.75	84.25	64	2.125	95.50	2.000	*	1140.70	*
90	106.50	90.25	68	2.438	102.00	2.250	*	1408.70	*
96	113.25	96.25	68	2.438	108.50	2.250	*	1591.20	*
102	120.00	102.25	72	2.688	114.50	2.500	*	1918.60	*
108	126.75	108.25	72	2.688	120.75	2.500	*	2142.60	*
120	140.25	120.25	76	2.938	132.75	2.750	*	2803.80	*
132	153.75	132.25	80	3.188	145.75	3.000	*	3583.40	*
144	167.25	144.25	84	3.438	158.25	3.250	*	4489.50	*

* The purchaser shall specify the ID of the flange for nominal pipe sizes 26 in. and larger.  The diameter of the flange bore shall not exceed the pipe OD by more than .25 in.