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 Fabricated Items.

Size (in.)		Pressure Rating (psi)	Dimensions in Inches				Weight in Pounds
Run	Branch	Pressure Rating (psi)	T	T 1	H	J	Tee
4	4	250	0.52	0.52	6.5	6.5	65
6	4	250	0.55	0.52	8	8	100
6	6	250	0.55	0.55	8	8	105
8	4	250	0.6	0.52	9	9	145
8	6	250	0.6	0.55	9	9	150
8	8	250	0.6	0.6	9	9	165
10	4	250	0.68	0.52	11	11	220
10	6	250	0.68	0.55	11	11	230
10	8	250	0.68	0.6	11	11	240
10	10	250	0.8	0.8	11	11	285
12	4	250	0.75	0.52	12	12	315
12	6	250	0.75	0.55	12	12	320
12	8	250	0.75	0.6	12	12	335
12	10	250	0.87	0.8	12	12	380
12	12	250	0.87	0.87	12	12	405
14	4	250	0.66	0.52	14	14	375
14	6	250	0.66	0.55	14	14	385
14	8	250	0.66	0.6	14	14	400
14	10	250	0.66	0.68	14	14	415
14	12	250	0.66	0.75	14	14	445
14	14	250	0.66	0.66	14	14	455
16	4	250	0.7	0.52	15	15	475
16	6	250	0.7	0.55	15	15	485
16	8	250	0.7	0.6	15	15	500
16	10	250	0.7	0.68	15	15	515
16	12	250	0.7	0.75	15	15	540
16	14	250	0.7	0.66	15	15	550
16	16	250	0.7	0.7	15	15	575
18	6	250	0.75	0.55	13	15.5	500
18	8	250	0.75	0.6	13	15.5	515
18	10	250	0.75	0.68	13	15.5	530
18	12	250	0.75	0.75	13	15.5	555
18	14	250	0.75	0.66	16.5	16.5	655
18	16	250	0.75	0.7	16.5	16.5	675
18	18	250	0.75	0.75	16.5	16.5	695
20	4	250	0.8	0.52	14	17	625
20	6	250	0.8	0.55	14	17	630
20	8	250	0.8	0.6	14	17	645
20	10	250	0.8	0.68	14	17	660
20	12	250	0.8	0.75	14	17	685
20	14	250	0.8	0.66	14	17	690
20	16	250	0.8	0.7	18	18	840
20	18	250	0.8	0.75	18	18	850
20	20	250	0.8	0.8	18	18	885
24	4	250	0.89	0.52	15	19	875
24	6	250	0.89	0.55	15	19	880
24	8	250	0.89	0.6	15	19	890
24	10	250	0.89	0.68	15	19	905
24	12	250	0.89	0.75	15	19	930
24	14	250	0.89	0.66	15	19	930
24	16	250	0.89	0.7	15	19	950
24	18	250	0.89	0.75	22	22	1270
24	20	250	0.89	0.8	22	22	1305
24	24	250	0.89	0.89	22	22	1380
30	12	250	1.03	0.75	18	23	1485
30	14	250	1.03	0.66	18	23	1490
30	16	250	1.03	0.7	18	23	1505
30	18	250	1.03	0.75	18	23	1515
30	20	250	1.03	0.8	18	23	1540
30	24	250	1.03	0.89	25	25	2025
30	30	250	1.03	1.03	25	25	2150
36	6	250	1.15	0.55	20	26	2130
36	8	250	1.15	0.6	20	26	2140
36	12	250	1.15	0.75	20	26	2170
36	14	250	1.15	0.66	20	26	2175
36	16	250	1.15	0.7	20	26	2185
36	18	250	1.15	0.75	20	26	2190
36	20	250	1.15	0.8	20	26	2215
36	24	250	1.15	0.89	20	26	2255
36	30	250	1.15	1.03	28	28	3000
36	36	250	1.15	1.15	28	28	3165
42	12	250	1.28	0.75	23	30	3165
42	14	250	1.28	0.66	23	30	3165
42	16	250	1.28	0.7	23	30	3180
42	18	250	1.28	0.75	23	30	3185
42	20	250	1.28	0.8	23	30	3205
42	24	250	1.28	0.89	23	30	3245
42	30	250	1.28	1.03	31	31	4130
42	36	150	1.28	1.15	31	31	4265
42	36	250	1.78	1.58	31	31	5365
42	42	150	1.28	1.28	31	31	4465
42	42	250	1.78	1.78	31	31	5580
48	12	250	1.42	0.75	26	34	4315
48	14	250	1.42	0.66	26	34	4315
48	16	250	1.42	0.7	26	34	4325
48	18	250	1.42	0.75	26	34	4330
48	20	250	1.42	0.8	26	34	4350
48	24	250	1.42	0.89	26	34	4385
48	30	250	1.42	1.03	26	34	4455
48	36	250	1.42	1.15	34	34	5555
48	42	150	1.42	1.28	34	34	5720
48	42	250	1.96	1.78	34	34	7195
48	48	150	1.42	1.42	34	34	5900
48	48	250	1.96	1.96	34	34	7380
54	36	2501	1.05	1.15	31	37	4850
54	42	2501	1.05	1.28	39	39	5980
54	48	2501	1.05	1.42	39	39	6210
54	54	2501	1.05	1.05	39	39	6025
60	36	2501	1.1	1.15	33	42	6200
60	42	2501	1.1	1.28	43	43	7640
60	48	2501	1.1	1.42	43	43	7880
60	54	2501	1.1	1.05	43	43	7665
60	60	2501	1.1	1.1	43	43	8045
64	36	2501	1.16	1.15	32	44	7505
64	42	2501	1.16	1.28	48	45	9870
64	48	2501	1.16	1.42	48	45	10090
64	54	2501	1.16	1.05	48	46	9915
64	60	2501	1.16	1.1	48	46	10285
64	64	2501	1.16	1.16	48	48	10995

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

Tees

Product Line Information

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