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Stainless Steel Butt Weld Eccentric Reducer

Stainless steel butt weld eccentric reducers are a type of pipe reducer. The diameters of the two ends of the pipes are different, and the centers of the circles are not on the same axis. They are ...
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Stainless steel butt weld eccentric reducers are a type of pipe reducer. The diameters of the two ends of the pipes are different, and the centers of the circles are not on the same axis. They are mainly used to connect pipes of different diameters. They play a role of transition and diameter reduction in the pipeline system, and at the same time adapt to the special needs of different pipeline layouts.
Stainless steel butt weld eccentric reducers are widely used in various industrial fields, such as petroleum, chemical industry, electric power, metallurgy, shipbuilding, etc. In these fields, the pipeline system is usually very complex and requires connecting pipes of various diameters and directions.

BW Eccentric Reducer Fitting Specifcation

Size Range 3/4″ – 60″ / DN20 – 1500
Thickness Schedule SCH 10 – SCH 80, SCH 160, XXS
America Standard ANSI / ASME B16.9 / MSS SP 43
Japan Standard JIS B2311/2312/2313
Germany Standard DIN2605/2615/2616/2617
Europe Standard EN10253
Carbon Steel Q235, 20#, 35#, 45#, 20G,ASTM A234 WPB/WPC
Low Temp Carbon Steel Q345B, 16Mn, ASTM A420 WPL6
Pipeline Steel ASTM A860 WPHY 42 / 46 / 56 / 60 / 65
Alloy Steel ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92,

15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5

Stainless Steel ASTM A403 WP304/304L/304H, 316/316L, 310S, 317, 347, 904L

ASME B16.9 Eccentric Reducer Dimensions

Eccentric Reducer

OD1 OD2 END TO END
NPS NPS H
3/4 3/8 – 1/2 38
1 1/2 – 3/4 51
1 1/4 1/2 – 1 51
1 1/2 1/2 – 1 1/4 64
2 3/4 – 1 1/2 76
2 1/2 1 – 2 89
3 1 1/4 – 2 1/2 102
4 2 – 3 1/2 102
5 2 – 4 127
6 2 1/2 – 5 140
8 3 1/2 – 6 152
10 4 – 8 178
12 5 – 10 203
14 6 – 12 330
16 6 – 14 356
18 8 – 16 381
20 10 – 18 508
22 12 – 20 508
24 12 – 22 508
26 12 – 24 610
28 14 – 26 610
30 14 – 28 610
32 20 – 30 610
34 22 – 32 610
36 22 – 34 610
38 24 – 36 610
40 28 – 38 610
42 28 – 40 610
44 32 – 42 610
46 34 – 44 711
48 36 – 46 711
52 40 – 48 711
56 40 – 52 711
60 44 – 56 711

Application of Stainless Steel Butt Weld Eccentric Reducer

Eccentric reducers are the first choice for horizontal pipelines. Their ability to prevent the formation of air or cavitation is essential for systems that transport dense or mixed fluids. In some chemical process pipelines, there may be gas-liquid two-phase flow or liquid accumulation. The eccentric reducer can guide the accumulated liquid to a specific collection location through a reasonable installation direction to prevent the accumulated liquid from clogging the pipeline at the point where the pipe diameter changes.

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