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Flanged Reducers

American Ductile Iron Flange Fittings
ANSI/AWWA C110/A21.10 or C153/A21.53
Flanged Reducers

 

ADIP Table No. 6-12

Size in. Pressure
Rating
psi		 Dimensions in Inches Weight
lb
Large
End		 Small
End		 T T1 F
6 4 250 0.55 0.52 9 45
8 4 250 0.6 0.52 11 65
8 6 250 0.6 0.55 11 75
10 4 250 0.68 0.52 12 85
10 6 250 0.68 0.55 12 95
10 8 250 0.68 0.6 12 110
12 4 250 0.75 0.52 14 120
12 6 250 0.75 0.55 14 130
12 8 250 0.75 0.6 14 145
12 10 250 0.75 0.68 14 165
14 6 250 0.66 0.55 16 155
14 8 250 0.66 0.6 16 170
14 10 250 0.66 0.68 16 195
14 12 250 0.66 0.75 16 225
16 6 250 0.7 0.55 18 190
16 8 250 0.7 0.6 18 210
16 10 250 0.7 0.68 18 235
16 12 250 0.7 0.75 18 265
16 14 250 0.7 0.66 18 280
*18 6 250 0.75 0.55 19 220
18 8 250 0.75 0.6 19 240
18 10 250 0.75 0.68 19 265
18 12 250 0.75 0.75 19 295
18 14 250 0.75 0.66 19 305
18 16 250 0.75 0.7 19 335
*20 6 250 0.8 0.55 20 265
*20 8 250 0.8 0.6 20 285
20 10 250 0.8 0.68 20 310
20 12 250 0.8 0.75 20 345
20 14 250 0.8 0.66 20 355
20 16 250 0.8 0.7 20 385
20 18 250 0.8 0.75 20 410
*24 6 250 0.89 0.55 24 385
*24 8 250 0.89 0.6 24 410
24 10 250 0.89 0.68 24 440
24 12 250 0.89 0.75 24 480
24 14 250 0.89 0.66 24 490
24 16 250 0.89 0.7 24 525
24 18 250 0.89 0.75 24 550
24 20 250 0.89 0.8 24 595
*30 6 250 1.03 0.55 30 610
*30 8 250 1.03 0.6 30 645
*30 10 250 1.03 0.68 30 685
*30 12 250 1.03 0.75 30 730
*30 14 250 1.03 0.66 30 735
*30 16 250 1.03 0.7 30 780
30 18 250 1.03 0.75 30 815
30 20 250 1.03 0.8 30 865
30 24 250 1.03 0.89 30 965
*36 14 250 1.15 0.66 36 1065
*36 16 250 1.15 0.7 36 1115
*36 18 250 1.15 0.75 36 1160
36 20 250 1.15 0.8 36 1225
36 24 250 1.15 0.89 36 1340
36 30 250 1.15 1.03 36 1550
*42 20 250 1.28 0.8 42 1680
42 24 250 1.28 0.89 42 1810
42 30 250 1.28 1.03 42 2060
42 36 250 1.28 1.15 42 2345
*48 20 250 1.42 0.8 48 2185
*48 24 250 1.42 0.89 48 2335
48 30 250 1.42 1.03 48 2615
48 36 250 1.42 1.15 48 2940
48 42 250 1.42 1.28 48 3320
54 30 250** 0.9 1 32* 1820
54 36 250** 0.9 1.15 28* 1910
54 42 250** 0.9 1.25 25* 2025
54 48 250** 0.9 1.4 18* 1915
*60 30 250** 0.94 1 36 2330
60 36 250** 0.94 1.15 32 2440
60 42 250** 0.94 1.25 26 2430
60 48 250** 0.94 1.4 20 2360
60 54 250** 0.94 0.9 15 2055
*64 30 250** 0.99 1 39.5 3020
64 36 250** 0.99 1.15 35 3115
64 42 250** 0.99 1.25 30 3150
64 48 250** 0.99 1.4 25 3145
64 54 250** 0.99 0.9 18 2695
64 60 250** 0.99 0.94 17 2980

Notes:
*Not included in AWWA C110 or C153.
**AMERICAN Standard. (54"-64" fittings are rated for only 150 psi in AWWA C153).
Numerals on cuts indicate standard order of specifying size of fitting.
The dimensions and weights of concentric and eccentric reducers are normally the same. If the order does not specify an eccentric reducer, then a concentric reducer will be furnished. Eccentric reducers are available in most of the sizes listed.
+At the present time, the "F" dimension of 54" eccentric reducers is 54". Thicknesses and weights are also different. Check AMERICAN for details.

CAUTION: When Installing Flanged Reducers

The two flanges on most reducers have a different number of bolt holes, and all adjacent bolt holes do not straddle a centerline common to both flanges.

The centerline of the reducer is marked by notches on the circumference of each flange, and installation must be made in reference to this centerline. This would also be applicable with most Reducing Flanges and Reducing Flange Fillers.

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