FITTINGS & FLANGES
Black-painted seamless carbon-steel concentric reducer
Concentric Reducer Black Paint Seamless Buttweld
Black-painted seamless carbon-steel concentric reducer connects matching pipe ends. Use the dimensional sketch and size row together, then confirm grade, wall thickness and service conditions.
- Connection
- Butt weld
- Material family
- Carbon steel; grade TBC
- Geometry / form
- Concentric
- Surface finish
- Black painted
- Manufacturing route
- Seamless
- Dimensional standard alternatives
- ASME B16.9 / ASME B16.28 / MSS SP-43 / MSS SP-75 / JIS B2311 / DIN 2605, 2615, 2616, 2617 / GOST 17375, 17376, 17378, 17379; select the applicable standard and edition
- Wall series alternatives
- SCH10/10S, SCH20/20S, STD, SCH40/40S, XS, SCH80, XXS, SGP; availability by size and grade TBC
- Confirm before order
- Material grade, wall thickness, pressure/temperature rating — TBC
Confirm configuration, price, quantity and lead time for each enquiry.
Dimensions
| NPS × NPS | Large end OD | Small end OD | H |
|---|---|---|---|
| 3/4"x1/2" | 26.7 | 21.3 | 38 |
| 3/4"x3/8" | 26.7 | 17.3 | 38 |
| 1x3/4" | 33.4 | TBC | 51 |
| 1x1/2" | 33.4 | 21.3 | 51 |
| 1 1/4x1" | 42.2 | 33.4 | 51 |
| 1 1/4x3/4" | 42.2 | 26.7 | 51 |
| 1 1/4x1/2" | 42.2 | 21.3 | 51 |
| 1 1/2x1 1/4" | 48.3 | 42.2 | 64 |
| 1 1/2x1" | 48.3 | 33.4 | 64 |
| 1 1/2x3/4" | 48.3 | 26.7 | 64 |
| 1 1/2x1/2" | 48.3 | 21.3 | 64 |
| 2x1 1/2" | 60.3 | 48.3 | 76 |
| 2x1 1/4" | 60.3 | 42.2 | 76 |
| 2x1" | 60.3 | 33.4 | 76 |
| 2x3/4" | 60.3 | 26.7 | 76 |
| 2 1/2x2" | 73 | 60.3 | 89 |
| 2 1/2x1 1/2" | 73 | 48.3 | 89 |
| 2 1/2x1 1/4" | 73 | 42.2 | 89 |
| 2 1/2x1" | 73 | 33.4 | 89 |
| 3x2 1/2" | 88.9 | 73 | 89 |
| 3x2" | 88.9 | 60.3 | 89 |
| 3x1 1/2" | 88.9 | 48.3 | 89 |
| 3x1 1/4" | 88.9 | 42.2 | 89 |
| 3 1/2x3" | 101.6 | 88.9 | 102 |
| 3 1/2x2 1/2" | 101.6 | 73 | 102 |
| 3 1/2x2" | 101.6 | 60.3 | 102 |
| 3 1/2x1 1/2" | 101.6 | 48.3 | 102 |
| 3 1/2x1 1/4" | 101.6 | 42.2 | 102 |
| 4x3 1/2" | 114.3 | 101.6 | 102 |
| 4x3" | 114.3 | 88.9 | 102 |
| 4x2 1/2" | 114.3 | 73 | 102 |
| 4x2" | 114.3 | 60.3 | 102 |
| 4x1 1/2" | 114.3 | 48.3 | 102 |
| 5x4" | 141.3 | 114.3 | 127 |
| 5x3 1/2" | 141.3 | 101.6 | 127 |
| 5x3" | 141.3 | 88.9 | 127 |
| 5x2 1/2" | 141.3 | 73 | 127 |
| 5x2" | 141.3 | 60.3 | 127 |
| 6x5" | 168.3 | 141.3 | 140 |
| 6x4" | 168.3 | 114.3 | 140 |
| 6x3 1/2" | 168.3 | 101.6 | 140 |
| 6x3" | 168.3 | 88.9 | 140 |
| 6x2 1/2" | 168.3 | 73 | 140 |
| 8x6" | 219.1 | 168.3 | 152 |
| 8x5" | 219.1 | 141.3 | 152 |
| 8x4" | 219.1 | TBC | 152 |
| 8x3 1/2" | 219.1 | 101.6 | 152 |
| 10x8" | 273 | 219.1 | 178 |
| 10x6" | 273 | 168.3 | 178 |
| 10x5" | 273 | 141.3 | 178 |
| 10x4" | 273 | 114.3 | 178 |
| 12x10" | 323.8 | 273 | 203 |
| 12x8" | 323.8 | 219.1 | 203 |
| 12x6" | 323.8 | 168.3 | 203 |
| 12x5" | 323.8 | 141.3 | 203 |
| 14x12" | 355.6 | 323.8 | 330 |
| 14x10" | 355.6 | 273 | 330 |
| 14x8" | 355.6 | 219.1 | 330 |
| 14x6" | 355.6 | 168.3 | 330 |
| 16x14" | 406.4 | 355.6 | 356 |
| 16x12" | 406.4 | 323.8 | 356 |
| 16x10" | 406.4 | 273 | 356 |
| 16x8" | 406.4 | 219.1 | 356 |
| 18x16" | 457 | 406.4 | 381 |
| 18x14" | 457 | 355.6 | 381 |
| 18x12" | 457 | 323.8 | 381 |
| 18x10" | 457 | 273 | 381 |
Size designations are as printed. The source does not explicitly label the linear-dimension unit; confirm the dimensioned drawing and unit before ordering. Blank or TBC entries are not confirmed values. Conflicting source cells are marked TBC.
Specifications compiled from available product documents。Dimensions, performance and suitability are subject to confirmed drawings and ordering documents.
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