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Redecer
![](/upload/20170508172012891.gif)
Reducer is a kind of fitting that be used for reducing piping size. There are 2 types reducer as follows:
a. Concentric reducer: have a central axis (centerline) of the section between the large and small.
b. Eccentric reducer: the central axis has a different (offset) between a large section and small.
Concentric reducer is most commonly used and often eccentric reducer used in piping in about pump and pipe rack area.
Dimension of ASME B16.9
Product range |
Reducers: Concentric & Eccentric Related Product
Elbows: LR&SR 45D 90D 180Dor in other degree |
Material |
A403 WP304/304L; WP316/316L/316H;WP321,WP347H,etc. |
Size |
1/2”~24”; 26”~96” |
Wall Thickness |
SCH5S~XXS |
Standard |
ASME B16.9, ASME B16.28, MSS SP43, DIN2605、DIN2617、DIN2516、JISB2311,etc; or design as the clients’ requests; |
Usage |
Petroleum, chemical, power plant, gas, metallurgy, shipbuilding, construction, etc |
Dimensions of ASME B16.9
Nominal Pipe Size(NPS) | Outside Diameter at Bevel | End to End H | |
Large End | Small End | ||
3⁄4 X 1⁄2 | 26.7 | 21.3 |
38 |
3⁄4 X 3⁄8 | 26.7 | 17.3 | 38 |
1 X 3⁄4 | 33.4 | 26.7 | 51 |
1 X 1⁄2 | 33.4 | 21.3 | 51 |
11⁄4 X 1 | 42.2 | 33.4 | 51 |
11⁄4 X 3⁄4 | 42.2 | 26.7 | 51 |
11⁄4 X 1⁄2 | 42.2 | 21.3 | 51 |
11⁄2 X 11⁄4 | 48.3 | 42.2 | 64 |
11⁄2 X 1 | 48.3 | 33.4 | 64 |
11⁄2 X 3⁄4 | 48.3 | 26.7 | 64 |
11⁄2 X 1⁄2 | 48.3 | 21.3 | 64 |
2 X 11⁄2 | 60.3 | 48.3 | 76 |
2 X 11⁄4 | 60.3 | 42.2 | 76 |
2 X 1 | 60.3 | 33.4 | 76 |
2 X 3⁄4 | 60.3 | 26.7 | 76 |
21⁄2 X 2 | 73 | 60.3 | 89 |
21⁄2 X 11⁄2 | 73 | 48.3 | 89 |
21⁄2 X 11⁄4 | 73 | 42.2 | 89 |
21⁄2 X 1 | 73 | 33.4 | 89 |
3 X 21⁄2 | 88.9 | 73 | 89 |
3 X 2 | 88.9 | 60.3 | 89 |
3 X 11⁄2 | 88.9 | 48.3 | 89 |
3 X 11⁄4 | 88.9 | 42.2 | 89 |
31⁄2 X 3 | 101.6 | 88.9 | 102 |
31⁄2 X 21⁄2 | 101.6 | 73 | 102 |
31⁄2 X 2 | 101.6 | 60.3 | 102 |
31⁄2 X 11⁄2 | 101.6 | 48.3 | 102 |
31⁄2 X 11⁄4 | 101.6 | 42.2 | 102 |
4 X 31⁄2 | 114.3 | 101.6 | 102 |
4 X 3 | 114.3 | 88.9 | 102 |
4 X 21⁄2 | 114.3 | 73 | 102 |
4 X 2 | 114.3 | 60.3 | 102 |
4 X 11⁄1 | 14.3 | 48.3 | 102 |
5 X 4 | 141.3 | 114.3 |
127 |
5 X 31⁄2 | 141.3 | 101.6 | 127 |
5 X 3 | 141.3 | 88.9 | 127 |
5 X 21⁄2 | 141.3 | 73 | 127 |
5 X 2 | 141.3 | 60.3 | 127 |
6 X 5 | 168.3 | 141.3 | 140 |
6 X 4 | 168.3 | 114.3 | 140 |
6 X 31⁄2 | 168.3 | 101.6 | 140 |
6 X 3 | 168.3 | 88.9 | 140 |
6 X 21⁄2 | 168.3 | 73 | 140 |
8 X 6 | 219.1 | 168.3 | 152 |
8 X 5 | 219.1 | 141.3 | 152 |
8 X 4 | 219.1 | 114.3 | 152 |
8 X 31⁄2 | 219.1 | 101.6 | 152 |
10 X 8 | 273 | 219.1 | 178 |
10 X 6 | 273 | 168.3 | 178 |
10 X 5 | 273 | 141.3 | 178 |
10 X 4 | 273 | 114.3 | 178 |
12 X 10 | 323.8 | 273 | 203 |
12 X 8 | 323.8 | 219.1 | 203 |
12 X 6 | 323.8 | 168.3 | 203 |
12 X 5 | 323.8 | 141.3 | 203 |
14 X 12 | 355.6 | 323.8 | 330 |
14 X 10 | 355.6 | 273 | 330 |
14 X 8 | 355.6 | 219.1 | 330 |
14 X 6 | 355.6 | 168.3 | 330 |
16 X 14 | 406.4 | 355.6 | 356 |
16 X 12 | 406.4 | 323.8 | 356 |
16 X 10 | 406.4 | 273 | 356 |
16 X 8 | 406.4 | 219.1 | 356 |
18 X 16 | 457 | 406.4 | 381 |
18 X 14 | 457 | 355.6 | 381 |
18 X 12 | 457 | 323.8 | 381 |
18 X 10 | 457 | 273 | 381 |
20 x 18 | 508 | 457 |
508 |
20 x 16 | 508 | 406.4 | 508 |
20 x 14 | 508 | 355.6 | 508 |
20 x 12 | 508 | 323.8 | 508 |
22 x 20 | 559 | 508 | 508 |
22 x 18 | 559 | 457 | 508 |
22 x 16 | 559 | 406.4 | 508 |
22 x 14 | 559 | 355.4 | 508 |
24 x 22 | 610 | 559 | 508 |
24 x 20 | 610 | 508 | 508 |
24 x 18 | 610 | 457 | 508 |
24 x 16 | 610 | 406.4 | 508 |
26 x 24 | 660 | 610 | 610 |
26 x 22 | 660 | 559 | 610 |
26 x 20 | 660 | 508 | 610 |
26 x 18 | 660 | 457 | 610 |
28 x 26 | 711 | 660 | 610 |
28 x 24 | 711 | 610 | 610 |
28 x 20 | 711 | 508 | 610 |
28 x 18 | 711 | 457 | 610 |
30 x 28 | 762 | 711 | 610 |
30 x 26 | 762 | 660 | 610 |
30 x 24 | 762 | 610 | 610 |
30 x 20 | 762 | 508 | 610 |
32 x 30 | 813 | 762 | 610 |
32 x 28 | 813 | 711 | 610 |
32 x 26 | 813 | 660 | 610 |
32 x 24 | 813 | 610 | 610 |
34 x 32 | 864 | 813 | 610 |
34 x 30 | 864 | 762 | 610 |
34 x 26 | 864 | 660 | 610 |
34 x 24 | 864 | 610 | 610 |
36 x 34 | 914 | 864 |
610 |
36 x 32 | 914 | 813 | 610 |
36 x 30 | 914 | 762 | 610 |
36 x 26 | 914 | 660 | 610 |
36 x 24 | 914 | 610 | 610 |
38 x 36 | 965 | 914 | 610 |
38 x 34 | 965 | 864 | 610 |
38 x 32 | 965 | 813 | 610 |
38 x 30 | 965 | 762 | 610 |
38 x 28 | 965 | 711 | 610 |
38 x 26 | 965 | 660 | 610 |
40 x 38 | 1 016 | 965 | 610 |
40 x 36 | 1 016 | 914 | 610 |
40 x 34 | 1 016 | 864 | 610 |
40 x 32 | 1 016 | 813 | 610 |
40 x 30 | 1 016 | 762 | 610 |
42 x 40 | 1 067 | 1 016 | 610 |
42 x 38 | 1 067 | 965 | 610 |
42 x 36 | 1 067 | 914 | 610 |
42 x 34 | 1 067 | 864 | 610 |
42 x 32 | 1 067 | 813 | 610 |
42 x 30 | 1 067 | 762 | 610 |
44 x 42 | 1 118 | 1 067 | 610 |
44 x 40 | 1 118 | 1 016 | 610 |
44 x 38 | 1 118 | 965 | 610 |
44 x 36 | 1 118 | 914 | 610 |
46 x 44 | 1 168 | 1 118 | 711 |
46 x 42 | 1 168 | 1 067 | 711 |
46 x 40 | 1 168 | 1 016 | 711 |
46 x 38 | 1 168 | 965 | 711 |
48 x 46 | 1 219 | 1 168 | 711 |
48 x 44 | 1 219 | 1 118 | 711 |
48 x 42 | 1 219 | 1 067 | 711 |
48 x 40 | 1 219 | 1 016 | 711 |
GENERAL NOTES:
(a) All dimensions are in millimeters.
(b) While the figure illustrates a bell-shaped reducer, the use of a conical reducer is not prohibited.
Dimensions of EN10253
![](http://www.hengjiapipe.com/upload/image/20170411/2017041115240750750.jpg)
Reducers — Dimensions
Dimensions in millimetres
Side D | Side D1 | |||
DN | D | DN1 | D1 | Length L |
20 | 26,9 | 15 | 21,3 | 38 |
25 | 33,7 |
20 15 |
26,9 21,3 |
51 51 |
32 | 42,4 |
25 20 15 |
33,7 26,9 21,3 |
51 51 51 |
40 | 48,3 |
32 25 20 |
42,4 33,7 26,9 |
64 64 64 |
50 | 60,3 |
40 32 25 20 |
48,3 42,4 33,7 26,9 |
76 76 76 76 |
65 | 76,1 |
50 40 32 25 |
60,3 48,3 42,4 33,7 |
89 89 89 89 |
80 | 88,9 |
65 50 40 32 |
76,1 60,3 48,3 42,4 |
89 89 89 89 |
100 | 114,3 |
80 65 50 40 |
88,9 76,1 60,3 48,3 |
102 102 102 102 |
125 | 139,7 |
100 80 65 50 |
114,3 88,9 76,1 60,3 |
127 127 127 127 |
150 | 168,3 |
125 100 80 65 |
139,7 114,3 88,9 76,1 |
140 140 140 140 |
200 | 219,1 |
150 125 100 80 |
168,3 139,7 114,3 88,9 |
152 152 152 152 |
250 | 273 |
200 150 125 100 |
219,1 168,3 139,7 114,3 |
178 178 178 178 |
300 | 323,9 |
250 200 150 125 |
273 219,1 168,3 139,7 |
203 203 203 203 |
350 | 355,6 |
300 250 200 150 |
323,9 273 219,1 168,3 |
330 330 330 330 |
400 | 406,4 |
350 300 250 200 |
355,6 323,9 273 219,1 |
356 356 356 356 |
450 | 457 |
400 350 300 250 |
406,4 355,6 323,9 273 |
381 381 381 381 |
500 | 508 |
450 400 350 300 |
457 406,4 355,6 323,9 |
508 508 508 508 |
550 | 559 |
500 450 400 350 |
508 457 406,4 355,6 |
508 508 508 508 |
600 | 610 |
550 500 450 400 |
559 508 457 406,4 |
508 508 508 508 |
700 | 711 |
600 500 450 |
610 508 457 |
610 610 610 |
800 | 813 |
700 600 550 500 |
711 610 559 508 |
610 610 610 610 |
900 | 914 |
800 700 600 |
813 711 610 |
610 610 610 |
1 000 | 1 016 |
900 800 700 |
914 813 711 |
610 610 610 |
1 200 | 1 219 |
1 000 900 800 |
1 016 914 813 |
711 711 711 |
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