Flanged Fittings

AMERICAN provides a complete line of standard as well as many special flanged fittings for various types of service, including water, sewage and air.

ANSI/AWWA C110/A21.10 Fittings

Most of the flanged fittings furnished by AMERICAN are manufactured in accordance with the requirements of this standard. Such fittings in this section are designated with the heading “ANSI/AWWA C110/A21.10.” The AWWA C110 fitting flanges have facing and drilling that match AWWA C115 threaded-on flanges (see Flanged Joint Pipe) and which also match ANSI B16.1 class 125 flanges.

AMERICAN manufactures some fittings that are not included in AWWA C110, including long-radius 90° bends, reducing bends, wyes and various other fittings commonly used in plant piping. These have AWWA C110 flanges and are denoted by the heading “AMERICAN Standard.” Pressure ratings shown are AMERICAN Standard and are based on AWWA C110 design principles.

AWWA C110 flanges are adequate for a water working pressure of 250 psi with the body of the fitting being suitable for 150 or 250 psi as indicated. In some cases, these fittings have been supplied for greater water working pressure applications, particularly when used with AMERICAN Toruseal gaskets.

ANSI/AWWA C153/A21.53 Fittings

54", 60" and 64" fittings are manufactured in accordance with AWWA C153. Flanges match AWWA C115 and ANSI B16.1 (class 125) flanges and are adequate for a water working pressure of 250 psi. (64" flanges match 66" flanges. See the table in Standard Dimensions). The bodies of these fittings are suitable for 150 psi or 250 psi as indicated. In some cases, these fittings have been supplied for greater water working pressure applications, particularly when used with AMERICAN Toruseal gaskets.

Fittings Class 250 F&D

Except for a transition fabricated pipe from an ANSI B16.1 class 250 flange to a standard AWWA C110 flange, AMERICAN no longer furnishes fittings with flanges faced and drilled per ANSI B16.1 class 250.

Pressure Ratings

As noted in AWWA C111, flange joints in the 24" and smaller sizes may be rated for up to 350 psi with the use of special gaskets such as AMERICAN’s Toruseal gasket.

Furthermore, AMERICAN is able to rate flange pipe and fittings higher than 350 psi on special applications.

Information on fittings class 250 F&D previously furnished by AMERICAN can be found in the Guide to Historical Data.

Welded-on outlets are preferable in many cases to tees or crosses, especially for branch reductions. Consult AMERICAN or see Special Fittings.

Size (in.)		Pressure Rating (psi)	Dimensions in Inches				Weight in Pounds
Run	Branch	Pressure Rating (psi)	T	T 1	H	J	Cross
4	4	250	0.52	0.52	6.5	6.5	85
6	4	250	0.55	0.52	8	8	115
6	6	250	0.55	0.55	8	8	130
8	4	250	0.6	0.52	9	9	165
8	6	250	0.6	0.55	9	9	175
8	8	250	0.6	0.6	9	9	205
10	4	250	0.68	0.52	11	11	240
10	6	250	0.68	0.55	11	11	255
10	8	250	0.68	0.6	11	11	280
10	10	250	0.8	0.8	11	11	345
12	4	250	0.75	0.52	12	12	335
12	6	250	0.75	0.55	12	12	345
12	8	250	0.75	0.6	12	12	370
12	10	250	0.87	0.8	12	12	435
12	12	250	0.87	0.87	12	12	490
14	6	250	0.66	0.55	14	14	415
14	8	250	0.66	0.6	14	14	445
14	10	250	0.66	0.68	14	14	480
14	12	250	0.66	0.75	14	14	535
14	14	250	0.66	0.66	14	14	550
16	6	250	0.7	0.55	15	15	515
16	8	250	0.7	0.6	15	15	540
16	10	250	0.7	0.68	15	15	575
16	12	250	0.7	0.75	15	15	630
16	14	250	0.7	0.66	15	15	645
16	16	250	0.7	0.7	15	15	690
18	6	250	0.75	0.55	13	15.5	530
18	8	250	0.75	0.6	13	15.5	555
18	10	250	0.75	0.68	13	15.5	585
18	12	250	0.75	0.75	13	15.5	630
18	14	250	0.75	0.66	16.5	16.5	750
18	16	250	0.75	0.7	16.5	16.5	795
18	18	250	0.75	0.75	16.5	16.5	825
20	4	250	0.8	0.52	14	17	660
20	6	250	0.8	0.55	14	17	660
20	8	250	0.8	0.6	14	17	685
20	10	250	0.8	0.68	14	17	715
20	12	250	0.8	0.75	14	17	765
20	14	250	0.8	0.66	14	17	775
20	16	250	0.8	0.7	18	18	955
20	18	250	0.8	0.75	18	18	980
20	20	250	0.8	0.8	18	18	1055
24	4	250	0.89	0.52	15	19	905
24	6	250	0.89	0.55	15	19	905
24	8	250	0.89	0.6	15	19	930
24	10	250	0.89	0.68	15	19	960
24	12	250	0.89	0.75	15	19	1005
24	14	250	0.89	0.66	15	19	1010
24	16	250	0.89	0.7	15	19	1050
24	18	250	0.89	0.75	22	22	1415
24	20	250	0.89	0.8	22	22	1485
24	24	250	0.89	0.89	22	22	1630
30	12	250	1.03	0.75	18	23	1565
30	14	250	1.03	0.66	18	23	1570
30	16	250	1.03	0.7	18	23	1605
30	18	250	1.03	0.75	18	23	1615
30	20	250	1.03	0.8	18	23	1670
30	24	250	1.03	0.89	25	25	2245
30	30	250	1.03	1.03	25	25	2500
36	12	250	1.15	0.75	20	26	2245
36	14	250	1.15	0.66	20	26	2245
36	16	250	1.15	0.7	20	26	2275
36	18	250	1.15	0.75	20	26	2280
36	20	250	1.15	0.8	20	26	2325
36	24	250	1.15	0.89	20	26	2410
36	30	250	1.15	1.03	28	28	3300
36	36	250	1.15	1.15	28	28	3625
42	12	250	1.28	0.75	23	30	3240
42	14	250	1.28	0.66	23	30	3240
42	16	250	1.28	0.7	23	30	3270
42	18	250	1.28	0.75	23	30	3275
42	20	250	1.28	0.8	23	30	3320
42	24	250	1.28	0.89	23	30	3395
42	30	250	1.28	1.03	31	31	4390
42	36	150	1.28	1.15	31	31	4655
42	36	250	1.78	1.58	31	31	5725
42	42	150	1.28	1.28	31	31	5060
42	42	250	1.78	1.78	31	31	6160
48	12	250	1.42	0.75	26	34	4395
48	14	250	1.42	0.66	26	34	4390
48	16	250	1.42	0.7	26	34	4415
48	18	250	1.42	0.75	26	34	4420
48	20	250	1.42	0.8	26	34	4460
48	24	250	1.42	0.89	26	34	4530
48	30	250	1.42	1.03	26	34	4675
48	36	250	1.42	1.15	34	34	5880
48	42	150	1.42	1.28	34	34	6210
48	42	250	1.96	1.78	34	34	7635
48	48	150	1.42	1.42	34	34	6570
48	48	250	1.96	1.96	34	34	8005
54	36	2501	1.05	1.15	31	37	5260
54	42	2501	1.05	1.28	39	39	6685
54	48	2501	1.05	1.42	39	39	7150
54	54	2501	1.05	1.05	39	39	6780
60	36	2501	1.1	1.15	33	42	6705
60	42	2501	1.1	1.28	43	43	8410
60	48	2501	1.1	1.42	43	43	8890
60	54	2501	1.1	1.05	43	43	8450
60	60	2501	1.1	1.1	43	43	9220
64	36	2501	1.16	1.15	32	44	7980
64	42	2501	1.16	1.28	48	45	10600
64	48	2501	1.16	1.42	48	45	11040
64	54	2501	1.16	1.05	48	46	10690
64	60	2501	1.16	1.1	48	46	11430
64	64	2501	1.16	1.16	48	48	12855

1.) AMERICAN Standard. 54"-64" fittings are rated only 150 psi in AWWA C153.

ANSI/AWWA C110/A21.10 Fittings

ANSI/AWWA C153/A21.53 Fittings

Fittings Class 250 F&D

Pressure Ratings

Crosses

Product Line Information

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