Dimensions AWWA‎‏ C228 SB
Stainless Steel‎‏ Ring‎‏ Flanges

Stainless Steel Flanges

AWWA Class SB Stainless Steel Ring Flanges are manufactured to meet AWWA C228 and ANSI 150lbs drill pattern specifications. At atmospheric temperature, this Ring flange is pressure-rated to 86psi.
Size	O.D.	I.D.	B.H.C.	B.H. Dia.	B.H. No.	THK	Weight Lbs
2	6.00	2.44	4.75	0.750	4	0.625	3.9
2.5	7.00	2.94	5.50	0.750	4	0.625	5.3
3	7.50	3.57	6.00	0.750	4	0.625	5.7
4	9.00	4.57	7.50	0.750	8	0.625	7.7
5	10.00	5.66	8.50	0.875	8	0.625	8.6
6	11.00	6.72	9.50	0.875	8	0.688	10.7
8	13.50	8.72	11.75	0.875	8	0.688	15.3
10	16.00	10.88	14.25	1.000	12	0.688	19.2
12	19.00	12.88	17.00	1.000	12	0.688	29.3
14	21.00	14.19	18.75	1.125	12	0.688	36.2
16	23.50	16.19	21.25	1.125	16	0.688	42.2
18	25.00	18.19	22.75	1.250	16	0.688	44.8
20	27.50	20.19	25.00	1.250	20	0.688	52.1
22	29.50	22.19	27.25	1.375	20	0.750	60.9
24	32.00	24.19	29.50	1.375	20	0.750	71.0
26	34.25	26.19	31.75	1.375	24	0.812	80.0
28	36.50	28.19	34.00	1.375	28	0.875	94.0
30	38.75	30.19	36.00	1.375	28	0.875	108.0
32	41.75	32.19	38.50	1.625	28	0.938	121.0
34	43.75	34.19	40.50	1.625	32	0.938	137.0
36	46.00	36.19	42.75	1.625	32	1.000	166.0
38	48.75	38.19	45.25	1.625	32	1.000	185.0
40	50.75	40.19	47.25	1.625	36	1.000	203.0
42	53.00	42.19	49.50	1.625	36	1.125	241.0
44	55.25	44.19	51.75	1.625	40	1.125	248.0
46	57.25	46.19	53.75	1.625	40	1.125	259.0
48	59.50	48.19	56.00	1.625	44	1.250	285.0
50	61.75	50.19	58.25	1.875	44	1.250	316.0
52	64.00	52.19	60.50	1.875	44	1.250	338.0
54	66.25	54.19	62.75	1.875	44	1.375	397.0
60	73.00	60.19	69.25	1.875	52	1.500	472.0
66	80.00	66.19	76.00	1.875	52	1.625	663.0
72	86.50	72.19	82.50	1.875	60	1.750	801.0

Notes..

Dimensions are in inches unless otherwise specified.
O.D. = Outside Diameter
I.D. = Inside 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 C228 specifications, however, other materials are available.

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