A stainless steel concentric reducer is a type of pipe fitting that is used to connect pipes of different sizes in a piping system. It is a conical shaped fitting that narrows down the diameter of a pipe while maintaining the centerline of the pipe. The reducer has a large end and a smaller end, and it is used to join pipes of different sizes by welding or threading. Stainless steel concentric reducers are commonly used in industrial piping systems where it is necessary to reduce the flow of fluid or gas. They are made of high-quality stainless steel, which makes them resistant to corrosion and suitable for use in high-pressure and high-temperature applications. The concentric design of the reducer ensures that there is no turbulence in the fluid flow, which helps to maintain the overall efficiency of the piping system.
Buttweld Concentric Reducer Specifications
| Tallas | T de reducción para tubos sin costura (1/2″~24″), T de reducción para tubos ERW / soldados / fabricados (1/2″~48″) |
| Normas | ANSI – B 16.9, ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings’, API 590-605, ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings”, ASME B16.25 – ‘Buttwelding Ends’, ASME B16.28 – ‘Wrought Steel Buttwelding Short Radius Elbows and Returns’, MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Application’ |
| Dimensiones | ANSI B16.9, ANSI B16.28, MSS-SP-43 Tipo A, MSS-SP-43 Tipo B, JIS B2312, JIS B2313 |
| Espesor | Gama 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS, etc. |
| Radio de curvatura | R = 1D – 10D, 15D, 20D |
| De | Concentric Reducer, Pipe Reducer, Pipe Concentric Reducers, Fitting Concentric
Reductores. |
| Calificaciones&Materiales | 304/L/H/LN, 316/L/H/LN/Ti, 321/H, 317/L/LN, 347/H, 310S/H, N08904 (904L), S31803, S32205, S32750, S32760, N02200, N02201, N04400, N06600, N06690, N06625, N06985(G3), N08028, N08800, N08810, N08811, N08825Superficie, Monel, Níquel, Inconel, Hastalloy, Titanio, Tantalio, Acero inoxidable, Acero aleado, Acero al carbono, Cupro-níquel 90/10 y 70/30, Acero inoxidable ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404 |
| Tipo | Soldadura a tope (BW) / Sin costura / Soldado / ERW / Fabricado |
| Recubrimiento / Tratamiento de superficies | Pintura antioxidante, pintura negra al aceite, transparente amarillo, zincado, galvanizado en frío y en caliente |
Buttweld Concentric Reducer Manufacturing Standards
| Norma ASME | ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43 |
| Norma DIN | DIN 28011, DIN 2617, DIN 2616, DIN 2615, DIN 2605 |
| Norma EN | EN 10253-2, EN 10253-1 |
| ASME B16.25 | Extremos para soldadura a tope |
| ASME B16.9 | Accesorios forjados de fabricación industrial para soldadura a tope |
| ASME B16.28 | Reductor excéntrico de acero forjado |
| ASTM A403 – ASME SA403 | Especificación estándar para accesorios de tubería de acero inoxidable austenítico forjado |
| MSS SP-43 | Accesorios de soldadura a tope forjados y fabricados para aplicaciones de baja presión y resistentes a la corrosión |
BUTTWELD CONCENTRIC REDUCER – MATERIALS & GRADES
| Stainless Steel Concentric Reducers – Buttweld | ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404 |
| Duplex & Super Duplex Steel Concentric Reducers – Buttweld | ASTM A 815, ASME SA 815, UNS n.º S31803, S32205. UNS S32750, S32950. N.º de material 1.4462 |
| Carbon Steel Concentric Reducers – Buttweld | ASTM A234, ASME SA234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 y WPHY 70. |
| Low Temperature Carbon Steel Concentric Reducers – Buttweld | ASTM A420 WPL3, A420 WPL6 |
| Alloy Steel Concentric Reducers – Buttweld | ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91 |
| Nickel Alloy Concentric Reducers – Buttweld | ASTM B336, ASME SB336, Níquel 200 (N.º UNS N02200), Níquel 201 (N.º UNS N02201), Monel 400 (N.º UNS N04400), Monel 500 (UNS N.º N05500), Inconel 800 (UNS N.º N08800), Inconel 825 (UNS N.º N08825), Inconel 600 (UNS N.º N06600), Inconel 625 (N.º UNS N06625), Inconel 601 (N.º UNS N06601), Hastelloy C 276 (N.º UNS N10276), Aleación 20 (N.º UNS N08020), titanio (Grado I y II), cuproníquel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe. |
Buttweld Concentric Reducer Dimensions
Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) should be nominative by client. Outlet dimension (M) for NPS twenty-six and bigger is usually recommended however not needed.
| Diámetro nominal de la tubería (NPS) | Outside Diameter(OD) at Bevel | End-to- End, H | |
| Large End | Small End | ||
| 3/4 × 1/2 | 26.7 | 21.3 | 38 |
| 3/4 × 3/8 | 26.7 | 17.3 | 38 |
| 1×3/4 | 33.4 | 26.7 | 51 |
| 1×1/2 | 33.4 | 21.3 | |
| 1-1/4×1 | 42.2 | 33.4 | 51 |
| 1-1/4×3/4 | 42.2 | 26.7 | |
| 1-1/4×1/2 | 42.2 | 21.3 | |
| 1-1/2×1-1/4 | 48.3 | 42.2 | 64 |
| 1-1/2×1 | 48.3 | 33.4 | |
| 1-1/2×3/4 | 48.3 | 26.7 | |
| 1-1/2×1/2 | 48.3 | 21.3 | |
| 2×1-1/2 | 60.3 | 48.3 | 76 |
| 2×1-1/4 | 60.3 | 42.2 | |
| 2×1 | 60.3 | 33.4 | |
| 2×3/4 | 60.3 | 26.7 | |
| 2-1/2×2 | 73 | 60.3 | 89 |
| 2-1/2×1-1/2 | 73 | 48.3 | |
| 2-1/2×1-1/4 | 73 | 42.2 | |
| 2-1/2×1 | 73 | 33.4 | |
| 3×2-1/2 | 88.9 | 73 | 89 |
| 3×2 | 88.9 | 60.3 | |
| 3×1-1/2 | 88.9 | 48.3 | |
| 3×1-1/4 | 88.9 | 42.2 | |
| 3-1/2×3 | 101.6 | 88.9 | 102 |
| 3-1/2×2-1/2 | 101.6 | 73 | |
| 3-1/2×2 | 101.6 | 60.3 | |
| 3-1/2×1-1/2 | 101.6 | 48.3 | |
| 3-1/2×1-1/4 | 101.6 | 42.2 | |
| 4×3-1/2 | 114.3 | 101.6 | 102 |
| 4×3 | 114.3 | 88.9 | |
| 4×2-1/2 | 114.3 | 73 | |
| 4×2 | 114.3 | 60.3 | |
| 4×1-1/2 | 114.3 | 48.3 | |
| 5×4 | 141.3 | 114.3 | 127 |
| 5×3-1/2 | 141.3 | 101.6 | |
| 5×3 | 141.3 | 88.9 | |
| 5×2-1/2 | 141.3 | 73 | |
| 5×2 | 141.3 | 60.3 | |
| 6×5 | 168.3 | 141.3 | 140 |
| 6×4 | 168.3 | 114.3 | |
| 6×3-1/2 | 168.3 | 101.6 | |
| 6×3 | 168.3 | 88.9 | |
| 6×2-1/2 | 168.3 | 73 | |
| 8×6 | 219.1 | 168.3 | 152 |
| 8×5 | 219.1 | 141.3 | |
| 8×4 | 219.1 | 114.3 | |
| 8×3-1/2 | 219.1 | 101.6 | |
| 10 × 8 | 273 | 219.1 | 178 |
| 10×6 | 273 | 168.3 | |
| 10 × 5 | 273 | 141.3 | |
| 10×4 | 273 | 114.3 | |
| 12 × 10 | 323.8 | 273 | 203 |
| 12 × 8 | 323.8 | 219.1 | |
| 12×6 | 323.8 | 168.3 | |
| 12×5 | 323.8 | 141.3 | |
| 14 × 12 | 355.6 | 323 | 330 |
| 14 × 10 | 355.6 | 273 | |
| 14×8 | 355.6 | 219.1 | |
| 14×6 | 355.6 | 168.3 | |
| 16 × 14 | 406.4 | 355.6 | 356 |
| 16 × 12 | 406.4 | 323.8 | |
| 16 × 10 | 406.4 | 273 | |
| 16×8 | 406.4 | 219.1 | |
| 18 × 16 | 457.2 | 406.4 | 381 |
| 18 × 14 | 457.2 | 355.6 | |
| 18 × 12 | 457.2 | 323.8 | |
| 18 × 10 | 457.2 | 273 | |
| 20 × 18 | 508 | 457.2 | 508 |
| 20 × 16 | 508 | 406.4 | |
| 20 × 14 | 508 | 355.6 | |
| 20 × 12 | 508 | 323.8 | |
| 22 × 20 | 558.8 | 508 | 508 |
| 22 × 18 | 558.8 | 457.2 | |
| 22 × 16 | 558.8 | 406.4 | |
| 22 × 14 | 558.8 | 355.6 | |
| 24 × 22 | 609.6 | 558.8 | 508 |
| 24 × 20 | 609.6 | 508 | |
| 24 × 18 | 609.6 | 457.2 | |
| 24×16 | 609.6 | 406.4 | |
| 26 × 24 | 660 | 610 | 610 |
| 26 × 22 | 660 | 559 | |
| 26 × 20 | 660 | 508 | |
| 26 × 18 | 660 | 457 | |
| 28 × 26 | 711 | 660 | 610 |
| 28 × 24 | 711 | 610 | |
| 28 × 20 | 711 | 508 | |
| 28×18 | 711 | 457 | |
| 30 × 28 | 762 | 711 | 610 |
| 30 × 26 | 762 | 660 | |
| 30 × 24 | 762 | 610 | |
| 30×20 | 762 | 508 | |
| 32 × 30 | 813 | 762 | 610 |
| 32 × 28 | 813 | 711 | |
| 32 × 26 | 813 | 660 | |
| 32 × 24 | 813 | 610 | |
| 34 × 32 | 864 | 813 | 610 |
| 34 × 30 | 864 | 762 | |
| 34 × 26 | 864 | 660 | |
| 342×4 | 864 | 610 | |
| 36 × 34 | 914 | 864 | 610 |
| 36 × 32 | 914 | 713 | |
| 36 × 30 | 914 | 762 | |
| 36×26 | 914 | 660 | |
| 36×24 | 914 | 610 | |
| 38 × 36 | 965 | 914 | 610 |
| 38 × 34 | 965 | 864 | |
| 38 × 32 | 965 | 813 | |
| 38 × 30 | 965 | 762 | |
| 38×28 | 965 | 711 | |
| 38×26 | 965 | 660 | |
| 40 × 38 | 965 | 965 | 610 |
| 40 × 36 | 1016 | 914 | |
| 40 × 34 | 1016 | 864 | |
| 40×32 | 1016 | 813 | |
| 40×30 | 1016 | 762 | |
| 42 × 40 | 1016 | 1016 | 610 |
| 42 × 38 | 1067 | 965 | |
| 42 × 36 | 1067 | 914 | |
| 42 × 34 | 1067 | 864 | |
| 42×32 | 1067 | 813 | |
| 42×30 | 1067 | 762 | |
| 44 × 42 | 1118 | 1067 | 610 |
| 44 × 40 | 1118 | 1016 | |
| 44 × 38 | 1118 | 965 | |
| 44 × 36 | 1118 | 914 | |
| 46 × 44 | 1168 | 1118 | 711 |
| 46 × 42 | 1168 | 1067 | |
| 46 × 40 | 1168 | 1016 | |
| 46 × 38 | 1168 | 965 | |
| 48 × 46 | 1219 | 1168 | 711 |
| 48 × 44 | 1219 | 1118 | |
| 48 × 42 | 1219 | 1067 | |
| 48 × 40 | 1219 | 1016 | |
Concentric Reducer Dimensional Tolerance
| Diámetro nominal de la tubería | 1/2 a 2,5 | 3 a 3,5 | 4 | De 5 a 8 |
| Diámetro exterior en el bisel (D) |
+ 1.6 – 0,8 |
1.6 | 1.6 | + 2.4 – 1,6 |
| Diámetro interior en el extremo | 0.8 | 1.6 | 1.6 | 1.6 |
| Longitud total (H) | 2 | 2 | 2 | 2 |
| Diámetro nominal de la tubería | De 10 a 18 | 20 a 24 | del 26 al 30 | 32 a 48 |
| Diámetro exterior en el bisel (D) |
+ 4 – 3.2 |
+ 6.4 – 4,8 |
+ 6.4 – 4,8 |
+ 6.4 – 4,8 |
| Diámetro interior en el extremo | 3.2 | 4.8 | + 6.4 – 4,8 |
+ 6.4 – 4,8 |
| Longitud total (H) | 2 | 2 | 5 | 5 |
| Espesor de la pared (t) | Un espesor nominal de pared no inferior a 87,51 TP3T | |||
Butt Welding Concentric Reducer Weight Calculator
El peso aproximado de un reductor excéntrico para soldadura a tope se calcula en función de la longitud del tubo principal, el diámetro del tubo principal, el diámetro de la rama, la longitud de la rama, el espesor de la pared del tubo principal y el espesor de la pared de la rama. Tenga en cuenta que el peso real de una T de un fabricante concreto puede variar en función de la metodología de fabricación. Las normas dimensionales, como la ASME B16.9, no indican los pesos de los accesorios de unión a tope.
El peso de un reductor excéntrico de soldadura a tope según la norma ASME B16.9 se calcula mediante la siguiente fórmula:
0,02466 * S * H / 1000
W = Peso en kg
OD1 = Diámetro exterior de gran tamaño (mm)
OD2 = Diámetro exterior más pequeño (mm)
t = Espesor de la pared (mm)
H = Dimensión de extremo a extremo (mm)
Tabla de pesos en kg de reductores excéntricos para soldadura a tope según la norma ASME B16.9
| NPS | LBS | KG |
| 4-3 | 3.38 | 1.53 |
| 4-2.1/2 | 3.25 | 1.47 |
| 4-2 | 3 | 1.36 |
| 3.1/2-2.1/2 | 2.88 | 1.31 |
| 3.1/2-2 | 2.75 | 1.25 |
| 3.1/2-1.1/2 | 2.5 | 1.13 |
| 3.1/2-1.1/4 | 2.4 | 1.09 |
| 4-3.1/2 | 3.5 | 1.59 |
| 4-1.1/2 | 2.88 | 1.31 |
| 5-4 | 6 | 2.72 |
| 5-3.1/2 | 5.75 | 2.61 |
| 5-3 | 5.5 | 2.49 |
| 5-2.1/2 | 5.25 | 2.38 |
| 5-2 | 5 | 2.27 |
| 6-5 | 8.5 | 3.86 |
| 6-4 | 8.25 | 3.74 |
| 6-3.1/2 | 8.25 | 3.74 |
| 6-3 | 8 | 3.63 |
| 6-2.1/2 | 7.25 | 3.29 |
| 8-6 | 13.2 | 5.99 |
| 8-5 | 12 | 5.44 |
| 8-4 | 11 | 4.99 |
| 8-3.1/2 | 11 | 4.99 |
| 10-8 | 22 | 9.98 |
| 10-6 | 21.5 | 9.75 |
| 10-5 | 21 | 9.53 |
| 10-4 | 20 | 9.07 |
| 12-10 | 34 | 15.42 |
| 12-8 | 32 | 14.51 |
| 12-6 | 31 | 14.06 |
| 12-5 | 30 | 13.61 |
| 14-12 | 60 | 27.22 |
| 14-10 | 59.2 | 26.85 |
| 14-8 | 58.5 | 26.54 |
| 14-6 | 58 | 26.31 |
| 16-14 | 71 | 32.21 |
| 16-12 | 70 | 31.75 |
| 16-10 | 69.5 | 31.52 |
| 16-8 | 68.5 | 31.07 |
| 16-6 | – | – |
| 18-16 | 85 | 38.56 |
| 18-14 | 84 | 38.1 |
| 3/4-1/2 | 0.17 | 0.08 |
| 3/4-3/8 | 0.15 | 0.07 |
| 1-3/4 | 0.4 | 0.18 |
| 1-1/2 | 0.4 | 0.18 |
| 1.1/4-1 | 0.5 | 0.23 |
| 1.1/4-3/4 | 0.4 | 0.18 |
| 1.1/4-1/2 | 0.4 | 0.18 |
| 1.1/2-1.1/4 | 0.7 | 0.32 |
| 1.1/2-1 | 0.62 | 0.28 |
| 1.1/2-3/4 | 0.54 | 0.24 |
| 1.1/2-1/2 | 0.5 | 0.23 |
| 2-1.1/2 | 0.9 | 0.41 |
| 2-1.1/4 | 0.84 | 0.38 |
| 2-1 | 0.76 | 0.34 |
| 2-3/4 | 0.7 | 0.32 |
| 2.1/2-2 | 1.5 | 0.68 |
| 2.1/2-1.1/2 | 1.38 | 0.63 |
| 2.1/2-1.1/4 | 1.25 | 0.57 |
| 2.1/2-1 | 1.25 | 0.57 |
| 3-2.1/2 | 2 | 0.91 |
| 3-2 | 1.8 | 0.82 |
| 3-1.1/2 | 1.7 | 0.77 |
| 3-1.1/4 | 1.6 | 0.73 |
| 3.1/2-3 | 3.15 | 1.43 |
| 18-12 | 83 | 37.65 |
| 18-10 | 82 | 37.19 |
| 18-8 | – | – |
| 20-18 | 125 | 56.7 |
| 20-16 | 124 | 56.25 |
| 20-14 | 122 | 55.34 |
| 20-12 | 120 | 54.43 |
| 20-10 | – | – |
| 20-8 | – | – |
| 22-20 | 142 | 64.41 |
| 22-18 | 138 | 62.6 |
| 22-16 | 131 | 59.42 |
| 22-14 | 123 | 55.79 |
| 22-12 | – | – |
| 22-10 | – | – |
| 24-22 | – | – |
| 24-20 | 150 | 68.04 |
| 24-18 | 148 | 67.13 |
| 24-16 | 145 | 65.77 |
| 24-14 | – | – |
| 30-26 | 232 | 105.23 |
| 30-24 | 224 | 101.6 |
| 30-22 | 220 | 99.79 |
| 30-20 | 220 | 99.79 |
| 24-12 | – | – |
| 24-10 | – | – |
| 26-24 | 207 | 93.89 |
| 26-22 | 200 | 90.72 |
| 26-20 | 190 | 86.18 |
| 26-18 | 182 | 82.55 |
| 26-16 | – | – |
| 26-14 | – | – |
| 26-12 | – | – |
| 28-26 | 224 | 101.6 |
| 28-24 | 216 | 97.98 |
| 28-22 | 210 | 95.25 |
| 28-20 | 199 | 90.26 |
| 30-28 | 241 | 109.32 |
Concentric Reducer Angularity Tolerance
| ND | Ángulo máximo de salida | Máximo fuera del plano |
| Q | P | |
| 1/2 a 4 | 1 | 2 |
| 5 a 8 | 2 | 4 |
| de 10 a 12 | 3 | 5 |
| 14 a 16 | 3 | 7 |
| 18 a 24 | 4 | 10 |
| del 26 al 30 | 5 | 10 |
| 32 a 42 | 5 | 13 |
| 44 a 48 | 5 | 20 |
What is the use of Buttweld Concentric Reducer?
- They are helpful in services wherever cavitation is present.
- When transporting between flanges or pipes of various ratings and wear protection is important, concentrical reducers are ideal.
- Concentric reducers are utilized in discharge of the pump.
- Concentric reducers can transition graciously between the piping and also the pump.
- The concentrical reducers facilitate in transporting slurries or abrasive liquids.
Available Types of ASME B16.9 Buttweld Concentric Reducer
| Buttweld Concentric Reducer | ASME B16.28 Butt weld Concentric Reducer |
| Hastelloy Concentric Reducer | ASME B16.9 Buttweld Concentric Pipe Reducer |
| High Nickel Alloy Concentric Reducer | Inconel Butt weld Concentric Reducer |
| ANSI B16.9 Buttweld Concentric Reducer | Titanium Buttweld Concentric Reducer |
| Accesorios de acero para tuberías reductoras | High Quality Concentric Reducer |
| Reductor concéntrico de acero inoxidable | Seamless Butt weld Concentric Reducer |
| Welded Butt weld Concentric Reducer | SS Concentric Reducers |
| Carbon Steel Concentric Reducer | Reductores de tubería para soldadura a tope |
| Copper Nickel Concentric Reducer | Duplex Steel Buttweld Concentric Reducer |
| Super Duplex Steel Buttweld Concentric Reducer | ASTM A403 Stainless Steel Concentric Reducer |
Buttweld Concentric Reducer Application
ASME B16.9 Concentric Reducer are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Buttweld Reducer through a worldwide network of stock-keeping branches. These Concentric Pipe Reducer is use in various industries like :
- Stainless Steel Buttweld Concentric Reducer uses in Oil and Gas Pipeline
- Butt weld Concentric Reducers uses in Chemical Industry
- Alloy Steel Concentric Reducer uses in Plumbing
- Buttweld Concentric Pipe Reducer uses in Heating
- Buttweld Concentric Reducer Fittings uses in Water Supply Systems
- ANSI B16.9 Buttweld Concentric Reducer uses in Power Plant
- Buttweld Concentric Reducer Fitting uses in Paper & Pulp Industry
- Concentric Reducer uses in General Purpose Applications
- Buttweld Concentric Reducer uses in Fabrication Industry
- Concentric Reducer uses in Food Processing Industry
- Buttweld Concentric Reducer uses in Structural Pipe
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