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Size Range: 3/4" - 60" / DN20 - 1500
Thickness Schedule: SCH 10 - SCH 160, XXS
Standard: ANSI / ASME B16.9 & MSS SP-43
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ASME B16.9 is standard specification for butt welding fittings that covers BW concentric and eccentric reducer, elbow and tee. The dimensions range is from 3/4" to 24" in seamless type.
Compare with cone-shaped fitting that enlarges or reduces the diameter, it is not symmetrical about center line. Both of them are available in carbon steel, alloy steel, stainless steel and used in pipeline system for reducing the diameter from one size to larger or small size.
Buttwelding Fittings are used in a piping system to change direction or function of media, to branch off, reduce pipe size or attach auxiliary equipment. They are availbale in multiple types as elbow, tee, cap, eccentric reducer, stub end and oelt, that produced in cold and hot forming based on ASTM A403 and ASTM A234 specification.
ASTM A403 WP304 & 316 Stainless Steel Pipe Fittings
The specification of ASTM A403 covers common stainles steel grades WP304 & WP316 that used for pressure piping. Customers need to indicate seamless or welded type while purchasing kinds grades fittings, such as eccentric reducers, buttwelding tee & cross, steel pipe bend and elbow.
ASTM A234 Carbon Steel and Alloy Steel Pipe Fittings
This specifiation covers ASTM A234 carbon steel and alloy steel fittings of semaless and welded construction by the standard of ASME B16.9. These eccentric reducer fitting is for using in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures.
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
| 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 |
Notes
1) Besides the above mentioned standards, the standards of GB/T 10752 SH 408 SH 3409 HG/T 21635 HG/T 21631 SY/T 0510 DL/T 695 EN 10253 etc.are also applied.
2) For the concentric and eccentric reducers with the sizes larger than that listed in the above table, they will be supplied subject to the sizes agreed by purchaser and manufacturer or according to manufacturer's size.
ASME B16.9 is standard specification for butt welding fittings that covers BW concentric and eccentric reducer, elbow and tee. The dimensions range is from 3/4" to 24" in seamless type.
Compare with cone-shaped fitting that enlarges or reduces the diameter, it is not symmetrical about center line. Both of them are available in carbon steel, alloy steel, stainless steel and used in pipeline system for reducing the diameter from one size to larger or small size.
Buttwelding Fittings are used in a piping system to change direction or function of media, to branch off, reduce pipe size or attach auxiliary equipment. They are availbale in multiple types as elbow, tee, cap, eccentric reducer, stub end and oelt, that produced in cold and hot forming based on ASTM A403 and ASTM A234 specification.
ASTM A403 WP304 & 316 Stainless Steel Pipe Fittings
The specification of ASTM A403 covers common stainles steel grades WP304 & WP316 that used for pressure piping. Customers need to indicate seamless or welded type while purchasing kinds grades fittings, such as eccentric reducers, buttwelding tee & cross, steel pipe bend and elbow.
ASTM A234 Carbon Steel and Alloy Steel Pipe Fittings
This specifiation covers ASTM A234 carbon steel and alloy steel fittings of semaless and welded construction by the standard of ASME B16.9. These eccentric reducer fitting is for using in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures.
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
| 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 |
Notes
1) Besides the above mentioned standards, the standards of GB/T 10752 SH 408 SH 3409 HG/T 21635 HG/T 21631 SY/T 0510 DL/T 695 EN 10253 etc.are also applied.
2) For the concentric and eccentric reducers with the sizes larger than that listed in the above table, they will be supplied subject to the sizes agreed by purchaser and manufacturer or according to manufacturer's size.