Eccentric & Concentric Reducers

OVERVIEW

Eccentric & Concentric Reducers

TUBA pride ourselves on being a leading manufacturer, exporter and supplier of Eccentric & Concentric Reducers that have been widely appreciated by our clients. These eccentric reducers have tapered slanted shape wherein one side is symmetrical to the source stream and the other side is slanted. Our Concentric Reducer Pipe Fittings are convenient to convey, are easy to handle, reliable, viable and come with a excellent surface finish and made with very high qaulity of row materials.

Eccentric reducer can also be used inversely to increase the flow of the substance. Our butt Weld eccentric reducer can be made of premium quality stainless steel, brass, bronze, aluminum, iron depending on client’s specification. Our manufactured Eccentric Reducers allow for a change in pipe size to meet the fluid flow requirements of the piping system. We are manufacturing ASME B16.9 Concentric Reducers in seamless or welded form, it proudly caters the needs of our customers in Oil & Gas, Power Generation, Petrochemical, and Industrial Construction, inclusive of Upstream, Midstream, and Downstream sectors.

We are also providing these reducers in different standard specifications. The product that we offer to our customers is varying differently in schedules, types, materials, dimensions, and so on.

Buttweld Eccentric & Concentric Reducers Specification

Buttweld Eccentric & Concentric Reducer size Welded Reducer : 1/2" - 48"
Buttweld Eccentric & Concentric Reducer Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Buttweld Eccentric & Concentric Reducer Thickness SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Buttweld Eccentric & Concentric Reducer Connection Welding
Size Range ½" NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) Buttweld Reducer
ASME B16.9 Buttweld Eccentric & Concentric Reducer Manufacturing process Push, Press, Forge, Cast, etc.
Buttweld Eccentric & Concentric Reducer Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
ANSI B16.9 Buttweld Eccentric & Concentric Reducer Origin & Mills Japanese, Indian, USA, Korean, European, Ukraine, Russian
We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

ASME B16.9 Butt Weld Eccentric Reducer Dimensions

Nominal Diameter Outside Diameter End to End
D1*D2
DN NPS Series A Series B H
20×15 3/4×1/2 26.9×21.3 25×18 38
20×10 3/4×3/8 26.9×17.3 25×14 38
25×20 1×3/4 33.7×26.9 32×25 51
25×15 1×1/2 33.7×21.3 32×18 51
32×25 1.1/4×1 42.4×33.7 38×32 51
32×20 1.1/4×3/4 42.4×26.9 38×25 51
32×15 1.1/4×1/2 42.4×21.3 38×18 51
40×32 1.1/2×1.1/4 48.3×42.4 45×38 64
40×25 1.1/2×1 48.3×33.7 45×32 64
40×20 1.1/2×3/4 48.3×26.9 45×25 64
40×15 1.1/2×1/2 48.3×21.3 45×18 64
50×40 2×1.1/2 60.3×48.3 57×45 76
50×32 2×1.1/4 60.3×42.4 57×38 76
50×25 2×1 60.3×33.7 57×32 76
50×20 2×3/4 60.3×26.9 57×25 76
65×50 2.1/2×2 73.0×60.3 76×57 89
65×40 2.1/2×1.1/2 73.0×48.3 76×45 89
65×32 2.1/2×1.1/4 73.0×42.4 76×38 89
65×25 2.1/2×1 73.0×33.7 76×32 89
80×65 3×2.1/2 88.9×73.0 89×76 89
80×50 3×2 88.9×60.3 89×57 89
80×40 3×1.1/2 88.9×48.3 89×45 89
80×32 3×1.1/4 88.9×42.4 89×38 89
90×80 3.1/2×3 101.6×88.9 – 102
90×65 3.1/2×2.1/2 101.6×73.0 – 102
90×50 3.1/2×2 101.6×60.3 – 102
90×40 3.1/2×1.1/2 101.6×48.3 – 102
90×32 3.1/2×1.1/4 101.6×42.4 – 102
100×90 4×3.1/2 114.3×101.6 – 102
100×80 4×3 114.3×88.9 108×89 102
100×65 4×2.1/2 114.3×73.0 108×76 102
100×50 4×2 114.3×60.3 108×57 102
100×40 4×1.1/2 114.3×48.3 108×45 102
125×100 5×4 141.3×114.3 133×108 127
125×90 5×3.1/2 141.3×101.6 – 127
125×80 5×3 141.3×88.9 133×89 127
125×65 5×2.1/2 141.3×73.0 133×76 127
125×50 5×2 141.3×60.3 133×57 127
150×125 6×5 168.3×141.3 159×133 140
150×100 6×5 168.3×114.3 159×108 140
150×90 6×3.1/2 168.3×101.6 – 140
150×80 6×3 168.3×88.9 159×89 140
150×65 6×2.1/2 168.3×73.0 159×76 140
200×150 8×6 219.1×168.3 219×159 152
200×125 8×5 219.1×141.3 219×133 152
200×100 8×4 219.1×114.3 219×108 152
200×90 8×3.1/2 219.1×101.6 – 152
250×200 10×8 273.0×219.1 273×219 178
250×150 10×6 273.0×168.3 273×159 178
250×125 10×5 273.0×141.3 273×133 178
250×100 10×4 273.0×114.3 273×108 178
300×250 12×10 323.9×273.1 325×273 203
300×200 12×8 323.9×219.1 325×219 203
300×150 12×6 323.9×168.3 325×159 203
300×125 12×5 323.9×141.3 325×133 203
350×300 14×12 355.6×323.9 377×325 330
350×250 14×10 355.6×273.0 377×273 330
350×200 14×8 355.6×219.1 377×219 330
350×150 14×6 355.6×168.3 377×159 330
400×350 16×14 406.4×355.6 426×377 356
400×300 16×12 406.4×323.9 426×325 356
400×250 16×10 406.4×273.0 426×273 356
400×200 16×8 406.4×219.1 426×219 356
450×400 18×16 457×406.4 478×426 381
450×350 18×14 457×355.6 478×377 381
450×300 18×12 457×323.9 478×325 381
450×250 18×10 457×273.0 478×273 381
500×450 20×18 508×457 529×478 508
500×400 20×16 508×406.4 529×426 508
500×350 20×14 508×355.6 529×377 508
500×300 20×12 508×323.9 529×325 508
550×500 22×20 559×508 – 508
550×450 22×18 559×457 – 508
550×400 22×16 559×406.4 – 508
550×350 22×14 559×355.6 – 508
600×550 24×22 610×559 – 508
600×500 24×20 610×508 630×529 508
600×450 24×18 610×457 630×478 508
600×400 24×22 610×406.4 630×426 508
650×600 26×24 660×610 – 610
650×550 26×22 660×559 – 610
650×500 26×20 660×508 – 610
650×450 26×18 660×457 – 610
700×650 28×26 711×660 – 610
700×600 28×24 711×610 720×630 610
700×550 28×22 711×559 – 610
700×500 28×20 711×508 720×530 610
750×700 30×28 762×711 – 610
750×650 30×26 762×660 – 610
750×600 30×24 762×610 – 610
750×550 30×22 762×559 – 610
800×750 32×30 813×762 – 610
800×700 32×28 813×711 820×720 610
800×650 32×26 813×660 – 610
800×600 32×24 813×610 820×630 610
850×800 34×32 864×813 – 610
850×750 34×30 864×762 – 610
850×700 34×28 864×711 – 610
850×650 34×26 864×660 – 610
900×850 36×34 914×864 – 610
900×800 36×32 914×813 920×820 610
900×750 36×30 914×762 – 610
900×700 36×28 914×711 920×720 610
950×900 38×36 965×914 – 610
950×850 38×34 965×864 – 610
950×800 38×32 965×813 – 610
950×750 38×30 965×762 – 610
1000×950 40×38 1016×965 – 610
1000×900 40×36 1016×914 1020×920 610
1000×850 40×34 1016×864 – 610
1000×800 40×32 1016×813 1020×820 610
1050×1000 42×40 1067×1016 – 610
1050×950 42×38 1067×965 – 610
1050×900 42×36 1067×914 – 610
1050×850 42×34 1067×864 – 610
1100×1050 44×42 1118×1067 – 610
1100×1000 44×40 1118×1016 1120×1020 610
1100×950 44×38 1118×965 – 610
1100×900 44×36 1118×914 1220×920 610
1150×1100 46×44 1168×1118 – 711
1150×1050 46×42 1168×1067 – 711
1150×1000 46×40 1168×1016 – 711
1150×950 46×38 1168×965 – 711
1200×1150 48×46 1220×1168 – 711
1200×1100 48×44 1220×1118 1220×1120 711
1200×1050 48×42 1220×1067 – 711
1200×1000 48×40 1220×1016 1220×1020 711

ASME B16.9 Butt Weld Concentric Reducer Dimensions

Nominal Diameter Outside Diameter End to End
D1*D2
DN NPS Series A Series B H
20×15 3/4×1/2 26.9×21.3 25×18 38
20×10 3/4×3/8 26.9×17.3 25×14 38
25×20 1×3/4 33.7×26.9 32×25 51
25×15 1×1/2 33.7×21.3 32×18 51
32×25 1.1/4×1 42.4×33.7 38×32 51
32×20 1.1/4×3/4 42.4×26.9 38×25 51
32×15 1.1/4×1/2 42.4×21.3 38×18 51
40×32 1.1/2×1.1/4 48.3×42.4 45×38 64
40×25 1.1/2×1 48.3×33.7 45×32 64
40×20 1.1/2×3/4 48.3×26.9 45×25 64
40×15 1.1/2×1/2 48.3×21.3 45×18 64
50×40 2×1.1/2 60.3×48.3 57×45 76
50×32 2×1.1/4 60.3×42.4 57×38 76
50×25 2×1 60.3×33.7 57×32 76
50×20 2×3/4 60.3×26.9 57×25 76
65×50 2.1/2×2 73.0×60.3 76×57 89
65×40 2.1/2×1.1/2 73.0×48.3 76×45 89
65×32 2.1/2×1.1/4 73.0×42.4 76×38 89
65×25 2.1/2×1 73.0×33.7 76×32 89
80×65 3×2.1/2 88.9×73.0 89×76 89
80×50 3×2 88.9×60.3 89×57 89
80×40 3×1.1/2 88.9×48.3 89×45 89
80×32 3×1.1/4 88.9×42.4 89×38 89
90×80 3.1/2×3 101.6×88.9 – 102
90×65 3.1/2×2.1/2 101.6×73.0 – 102
90×50 3.1/2×2 101.6×60.3 – 102
90×40 3.1/2×1.1/2 101.6×48.3 – 102
90×32 3.1/2×1.1/4 101.6×42.4 – 102
100×90 4×3.1/2 114.3×101.6 – 102
100×80 4×3 114.3×88.9 108×89 102
100×65 4×2.1/2 114.3×73.0 108×76 102
100×50 4×2 114.3×60.3 108×57 102
100×40 4×1.1/2 114.3×48.3 108×45 102
125×100 5×4 141.3×114.3 133×108 127
125×90 5×3.1/2 141.3×101.6 – 127
125×80 5×3 141.3×88.9 133×89 127
125×65 5×2.1/2 141.3×73.0 133×76 127
125×50 5×2 141.3×60.3 133×57 127
150×125 6×5 168.3×141.3 159×133 140
150×100 6×5 168.3×114.3 159×108 140
150×90 6×3.1/2 168.3×101.6 – 140
150×80 6×3 168.3×88.9 159×89 140
150×65 6×2.1/2 168.3×73.0 159×76 140
200×150 8×6 219.1×168.3 219×159 152
200×125 8×5 219.1×141.3 219×133 152
200×100 8×4 219.1×114.3 219×108 152
200×90 8×3.1/2 219.1×101.6 – 152
250×200 10×8 273.0×219.1 273×219 178
250×150 10×6 273.0×168.3 273×159 178
250×125 10×5 273.0×141.3 273×133 178
250×100 10×4 273.0×114.3 273×108 178
300×250 12×10 323.9×273.1 325×273 203
300×200 12×8 323.9×219.1 325×219 203
300×150 12×6 323.9×168.3 325×159 203
300×125 12×5 323.9×141.3 325×133 203
350×300 14×12 355.6×323.9 377×325 330
350×250 14×10 355.6×273.0 377×273 330
350×200 14×8 355.6×219.1 377×219 330
350×150 14×6 355.6×168.3 377×159 330
400×350 16×14 406.4×355.6 426×377 356
400×300 16×12 406.4×323.9 426×325 356
400×250 16×10 406.4×273.0 426×273 356
400×200 16×8 406.4×219.1 426×219 356
450×400 18×16 457×406.4 478×426 381
450×350 18×14 457×355.6 478×377 381
450×300 18×12 457×323.9 478×325 381
450×250 18×10 457×273.0 478×273 381
500×450 20×18 508×457 529×478 508
500×400 20×16 508×406.4 529×426 508
500×350 20×14 508×355.6 529×377 508
500×300 20×12 508×323.9 529×325 508
550×500 22×20 559×508 – 508
550×450 22×18 559×457 – 508
550×400 22×16 559×406.4 – 508
550×350 22×14 559×355.6 – 508
600×550 24×22 610×559 – 508
600×500 24×20 610×508 630×529 508
600×450 24×18 610×457 630×478 508
600×400 24×22 610×406.4 630×426 508
650×600 26×24 660×610 – 610
650×550 26×22 660×559 – 610
650×500 26×20 660×508 – 610
650×450 26×18 660×457 – 610
700×650 28×26 711×660 – 610
700×600 28×24 711×610 720×630 610
700×550 28×22 711×559 – 610
700×500 28×20 711×508 720×530 610
750×700 30×28 762×711 – 610
750×650 30×26 762×660 – 610
750×600 30×24 762×610 – 610
750×550 30×22 762×559 – 610
800×750 32×30 813×762 – 610
800×700 32×28 813×711 820×720 610
800×650 32×26 813×660 – 610
800×600 32×24 813×610 820×630 610
850×800 34×32 864×813 – 610
850×750 34×30 864×762 – 610
850×700 34×28 864×711 – 610
850×650 34×26 864×660 – 610
900×850 36×34 914×864 – 610
900×800 36×32 914×813 920×820 610
900×750 36×30 914×762 – 610
900×700 36×28 914×711 920×720 610
950×900 38×36 965×914 – 610
950×850 38×34 965×864 – 610
950×800 38×32 965×813 – 610
950×750 38×30 965×762 – 610
1000×950 40×38 1016×965 – 610
1000×900 40×36 1016×914 1020×920 610
1000×850 40×34 1016×864 – 610
1000×800 40×32 1016×813 1020×820 610
1050×1000 42×40 1067×1016 – 610
1050×950 42×38 1067×965 – 610
1050×900 42×36 1067×914 – 610
1050×850 42×34 1067×864 – 610
1100×1050 44×42 1118×1067 – 610
1100×1000 44×40 1118×1016 1120×1020 610
1100×950 44×38 1118×965 – 610
1100×900 44×36 1118×914 1220×920 610
1150×1100 46×44 1168×1118 – 711
1150×1050 46×42 1168×1067 – 711
1150×1000 46×40 1168×1016 – 711
1150×950 46×38 1168×965 – 711
1200×1150 48×46 1220×1168 – 711
1200×1100 48×44 1220×1118 1220×1120 711
1200×1050 48×42 1220×1067 – 711
1200×1000 48×40 1220×1016 1220×1020 711

ANSI B16.9 Buttweld Eccentric & Concentric Forms & Availability

Products Size
ANSI B16.9 SS Buttweld Eccentric & Concentric Reducer ANSI B16.9 Alloy Buttweld Eccentric & Concentric Reducer Sizes 1/2" - 48"
ANSI B16.9 Nickel Welded Eccentric & Concentric Reducer ANSI B16.9 Hastelloy Butt Weld Eccentric & Concentric Reducer
ANSI B16.9 Titanium Buttweld Eccentric & Concentric Reducer ANSI B16.9 Cupro Nickel Buttweld Eccentric & Concentric Reducer

Manufacturing Standards of Buttweld Eccentric & Concentric Reducer

ASME B16.9 Buttweld Reducer Factory-Made Wrought Buttwelding Fittings Eccentric & Concentric Reducer, Buttweld Eccentric & Concentric Reducer, Welded Eccentric & Concentric Reducer, Butt Weld Eccentric & Concentric Reducer
ASME B16.28   Eccentric & Concentric Reducer, Buttweld Eccentric & Concentric Reducer, Welded Eccentric & Concentric Reducer, Butt Weld Eccentric & Concentric Reducer
MSS SP43 Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications Eccentric Reducer, Buttweld Eccentric Reducer, Welded Eccentric Reducer, Butt Weld Eccentric Reducer
MSS SP75   Eccentric & Concentric Reducer, Buttweld Eccentric & Concentric Reducer, Welded EccentEccentric & Concentricric Reducer, Butt Weld Eccentric & Concentric Reducer

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