AMERICAN provides a complete line of standard as well as many special flanged fittings for various types of service, including water, sewage and air.
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 provides 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.
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.
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.
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.
Bases are faced and drilled only when specified on the purchase order. When a base fitting is ordered with base faced and drilled, the base will be plain faced and drilled as shown in the table below.
Dimension “R” is the finished dimension; unfinished bases will be slightly longer. For supporting pipe sizes and base drilling, see below.
Base dimensions and weights are the same for full opening bends and tees, as well as for reducing bends and tees – see Bends and Tees. The proper base is determined by the largest opening. To compute the total weight of a reducing base bend or tee, add the weight of the base only (shown below) to the weight of a reducing bend or tee of the size and class as selected from the preceding tables.
When ordering reducing base bends always specify which flange is opposite the base. To order base tees reducing on the branch, specify sizes in proper order and give the figure number shown below.
Bases other than shown here – such as on the side of a fitting – are special and may be available on 14" and larger bends. See Standard Dimensions for some available base locations. Consult AMERICAN for special base locations.
To avoid an error, it is recommended that AMERICAN be consulted prior to ordering any base fittings.
Bases of these fittings are intended for support in compression and are not to be used for thrust anchors or supports in tension, bending or shear.
Size | Pressure | Dimensions in Inches | Weight in Pounds | ||||||
|---|---|---|---|---|---|---|---|---|---|
R | S | T | U | Short Radius | Long Radius | ||||
Base | Base | Base | Base | ||||||
4 | 250 | 5.5 | 6 | 0.62 | 0.5 | 55 | 10 | 65 | 15 |
6 | 250 | 7 | 7 | 0.69 | 0.62 | 85 | 20 | 110 | 30 |
8 | 250 | 8.38 | 9 | 0.94 | 0.88 | 145 | 40 | 195 | 55 |
10 | 250 | 9.75 | 9 | 0.94 | 0.88 | 210 | 45 | 280 | 65 |
12 | 250 | 11.25 | 11 | 1 | 1 | 300 | 65 | 420 | 95 |
14 | 250 | 12.5 | 11 | 1 | 1 | 360 | 70 | 490 | 105 |
16 | 250 | 13.75 | 11 | 1 | 1 | 445 | 75 | 615 | 110 |
18 | 250 | 15 | 13.5 | 1.12 | 1.12 | 565 | 115 | 800 | 170 |
20 | 250 | 16 | 13.5 | 1.12 | 1.12 | 700 | 120 | 985 | 175 |
24 | 250 | 18.5 | 13.5 | 1.12 | 1.12 | 1030 | 130 | 1430 | 190 |
30 | 150 | 23 | 16 | 1.19 | 1.15 | 1625 | 190 | 2400 | 295 |
30 | 250 | 23 | 16 | 1.19 | 1.15 | 1625 | 190 | 2400 | 295 |
36 | 250 | 26 | 19 | 1.25 | 1.15 | 2385 | 250 | 3680 | 395 |
42 | 250 | 30 | 23.5 | 1.44 | 1.28 | 3465 | 410 | 5515 | 650 |
48 | 250 | 34 | 25 | 1.56 | 1.42 | 4610 | 515 | 7635 | 845 |
541 | 250 | 38 | 27.5 | 1.69 | 1.55 | 4790 | 1050 | - | - |
601 | 250 | 42 | 32 | 1.88 | 1.75 | 6465 | 1500 | - | - |
641 | 250 | 44 | 38.75 | 2.12 | 1.75 | 8995 | 2250 | - | - |
Size | Pressure | Dimensions in Inches | Weight in Pounds | ||||
|---|---|---|---|---|---|---|---|
R | S | T | U | Base | Base | ||
4 | 250 | 5.5 | 6 | 0.62 | 0.5 | 75 | 10 |
6 | 250 | 7 | 7 | 0.69 | 0.62 | 110 | 15 |
8 | 250 | 8.38 | 9 | 0.94 | 0.88 | 185 | 30 |
10 | 250 | 9.75 | 9 | 0.94 | 0.88 | 300 | 30 |
12 | 250 | 11.25 | 11 | 1 | 1 | 430 | 45 |
14 | 250 | 12.5 | 11 | 1 | 1 | 485 | 50 |
16 | 250 | 13.75 | 11 | 1 | 1 | 600 | 50 |
18 | 250 | 15 | 13.5 | 1.12 | 1.12 | 740 | 75 |
20 | 250 | 16 | 13.5 | 1.12 | 1.12 | 930 | 75 |
24 | 250 | 18.5 | 13.5 | 1.12 | 1.12 | 1410 | 80 |
30 | 250 | 23 | 16 | 1.19 | 1.15 | 2270 | 120 |
36 | 250 | 26 | 19 | 1.25 | 1.15 | 3320 | 160 |
42 | 150 | 30 | 23.5 | 1.44 | 1.28 | 4740 | 270 |
42 | 250 | 30 | 23.5 | 1.44 | 1.28 | 5850 | 270 |
48 | 150 | 34 | 25 | 1.56 | 1.42 | 6235 | 335 |
48 | 250 | 34 | 25 | 1.56 | 1.42 | 7720 | 335 |
541 | 250 | 38 | 27.5 | 1.69 | 1.55 | 6590 | 565 |
601 | 250 | 42 | 32 | 1.88 | 1.75 | 8905 | 855 |
641 | 250 | 44 | 38.75 | 2.12 | 1.75 | 12275 | 1275 |
Fitting Size | Dimensions in Inches | No. | |
|---|---|---|---|
B.C. | Bolt Hole | ||
4 | 4.75 | 3/4 | 4 |
6 | 5.5 | 3/4 | 4 |
8 | 7.5 | 3/4 | 4 |
10 | 7.5 | 3/4 | 4 |
12 | 9.5 | 7/8 | 4 |
14 | 9.5 | 7/8 | 4 |
16 | 9.5 | 7/8 | 4 |
18 | 11.75 | 7/8 | 4 |
20 | 11.75 | 7/8 | 4 |
24 | 11.75 | 7/8 | 4 |
30 | 14.25 | 1 | 4 |
36 | 17 | 1 | 4 |
42 | 21.25 | 1 1/8 | 4 |
48 | 22.75 | 1 1/4 | 4 |
541 | 25 | 1 1/4 | 4 |
601 | 29.5 | 1 3/8 | 4 |
641 | 36 | 1 3/8 | 4 |
Size of Supporting Flanged Pipe for Base Fittings | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fitting | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | 30 | 36 | 42 | 48 | 54 | 60 | 64 |
Supporting | 2 | 2 1/2 | 2 1/2 | 4 | 4 | 6 | 6 | 6 | 8 | 8 | 8 | 10 | 12 | 16 | 18 | 20 | 24 | 30 |
1.) These sizes are not included in AWWA C110 or C153.
