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Butt Fusion Fittings - Backup Flanges - Ductile Iron * |
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Dimensions
Normal Pipe Size |
Flange
Order # |
Outside Dia. of Flange |
Min. Thickness of Flange |
Min. Dia. of Bore |
Length through Hub |
# of
Bolts |
Min. Dia. of Bolt Holes |
Dia. of Bolt Circle |
Inside Corner Radius |
Weight Lbs. |
Non Shock Operating Pressure |
1-¼" |
BU-125C |
4.63 |
0.63 |
1.72 |
0.22 |
4 |
0.63 |
3.50 |
0.19 |
1.8 |
275 |
1-½" |
BU-150C |
5.00 |
0.69 |
1.97 |
0.22 |
4 |
0.63 |
3.88 |
0.25 |
2.0 |
275 |
2" |
BU-2A |
6.00 |
0.75 |
3.00 |
0.23 |
4 |
0.75 |
4.75 |
0.13 |
2.5 |
275 |
2" |
BU-2B |
6.00 |
0.75 |
2.63 |
0.23 |
4 |
0.75 |
4.75 |
0.13 |
2.5 |
275 |
2" |
BU-2C |
6.00 |
0.75 |
2.46 |
0.37 |
4 |
0.75 |
4.75 |
0.31 |
2.5 |
275 |
3" |
BU-3A |
7.50 |
0.94 |
4.00 |
0.25 |
4 |
0.75 |
6.00 |
0.13 |
3.8 |
275 |
3" |
BU-3B |
7.50 |
0.94 |
3.75 |
0.25 |
4 |
0.75 |
6.00 |
0.13 |
3.8 |
275 |
3" |
BU-3C |
7.50 |
0.94 |
3.60 |
0.50 |
4 |
0.75 |
6.00 |
.038 |
3.8 |
275 |
3" |
BU-3D |
7.50 |
0.94 |
Special |
0.50 |
4 |
0.75 |
6.00 |
0.38 |
3.8 |
275 |
4" |
BU-4B |
9.00 |
0.94 |
4.75 |
0.25 |
8 |
0.75 |
7.50 |
0.13 |
5.3 |
275 |
4" |
BU-4C |
9.00 |
0.94 |
4.60 |
0.50 |
8 |
0.75 |
7.50 |
0.44 |
5.3 |
275 |
4" |
BU-4D |
9.00 |
0.94 |
Special |
0.50 |
8 |
0.75 |
7.50 |
0.44 |
5.3 |
275 |
5" |
BU-5B |
10.00 |
0.94 |
5.81 |
0.27 |
8 |
0.88 |
8.50 |
0.13 |
6.4 |
275 |
5" |
BU-5C |
10.00 |
0.94 |
5.69 |
0.50 |
8 |
0.88 |
8.50 |
0.44 |
6.4 |
275 |
6" |
BU-6B |
11.00 |
1.00 |
6.88 |
0.28 |
8 |
0.88 |
9.50 |
0.13 |
7.3 |
275 |
6" |
BU-6C |
11.00 |
1.00 |
6.75 |
0.50 |
8 |
0.88 |
9.50 |
0.50 |
7.3 |
275 |
6" |
BU-6D |
11.00 |
1.00 |
Special |
0.50 |
8 |
0.88 |
9.50 |
0.50 |
7.3 |
275 |
8" |
BU-8B |
13.50 |
1.00 |
8.88 |
0.32 |
8 |
0.88 |
11.75 |
0.13 |
11.1 |
275 |
8" |
BU-8C |
13.50 |
1.13 |
8.75 |
0.50 |
8 |
0.88 |
11.75 |
0.50 |
11.1 |
275 |
8" |
BU-8D |
13.50 |
1.13 |
Special |
0.50 |
8 |
0.88 |
11.75 |
0.50 |
11.1 |
275 |
10" |
BU-10A |
16.00 |
1.19 |
10.31 |
0.49 |
12 |
1.00 |
14.25 |
0.30 |
18.0 |
275 |
10" |
BU-10B |
16.00 |
1.19 |
11.00 |
0.49 |
12 |
1.00 |
14.25 |
0.38 |
16.8 |
275 |
10" |
BU-10C |
16.00 |
1.19 |
10.92 |
0.50 |
12 |
1.00 |
14.25 |
0.50 |
16.8 |
275 |
11" |
BU-11A |
16.00 |
1.19 |
11.37 |
0.49 |
12 |
1.00 |
14.25 |
0.34 |
16.3 |
275 |
12" |
BU-12B |
19.00 |
1.25 |
13.13 |
0.63 |
12 |
1.00 |
17.00 |
0.31 |
24.1 |
275 |
12" |
BU-12C |
19.00 |
1.25 |
12.92 |
0.63 |
12 |
1.00 |
17.00 |
0.50 |
24.1 |
275 |
14" |
BU-14B |
21.00 |
1.38 |
14.38 |
0.70 |
12 |
1.13 |
18.75 |
0.40 |
29.5 |
250 |
14" |
BU-14C |
21.00 |
1.38 |
14.18 |
0.70 |
12 |
1.13 |
18.75 |
0.50 |
29.5 |
250 |
16" |
BU-16B |
23.50 |
1.44 |
16.38 |
0.70 |
16 |
1.13 |
21.25 |
0.40 |
36.6 |
250 |
16" |
BU-16C |
23.50 |
1.44 |
16.19 |
0.70 |
16 |
1.13 |
21.25 |
0.50 |
36.6 |
250 |
18" |
BU-18B |
25.00 |
1.56 |
18.38 |
0.75 |
16 |
1.25 |
22.75 |
0.38 |
46.0 |
250 |
18" |
BU-18C |
25.00 |
1.56 |
18.20 |
0.75 |
16 |
1.25 |
22.75 |
0.50 |
46.0 |
250 |
20" |
BU-20B |
27.50 |
1.69 |
20.38 |
0.88 |
20 |
1.25 |
29.50 |
0.50 |
58.4 |
200 |
* Also Available in other materials and finishes (i.e. HDPE, Stainless Steel, Carbon Steel,
Epoxy Coated, Galvanized)
- Note: A, B, C refer to different inside diameters
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