Fournisseur de tuyaux en acier inoxydable Wenzhou Kaixin Chine
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
| Tailles | Seamless Pipe Reducing Tee ( 1/2″～24″), ACRE / Soudé / Fabricated Pipe Reducing Tee (1/2″～48″) |
| Normes | 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’ |
| Dimensions | ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JISB2313 |
| Épaisseur | Schedule 5S, 10S, 20S, S10, S20, S30, MST, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS et etc.. |
| Bending Radius | R=1D – 10D, 15D, 20D |
| Depuis | Concentric Reducer, Pipe Reducer, Pipe Concentric Reducers, Fitting Concentric
Reducers. |
| Notes&Matériels | 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, N08825Surface,Monel, Nickel, Inconel, Hastalloy, Titane, Tantale, Acier inoxydable, Acier allié, Acier au carbone, Cupro-Nickel 90/10 & 70/30, Acier inoxydable ASME / ASTM SA / A403 SA / UN 774 WP-S, WP-W, WP-WX, DEPUIS 1.4301, DIN1.4306, DEPUIS 1.4401, DEPUIS 1.4404 |
| Taper | Soudure bout à bout (PC) / Sans couture / Soudé / ACRE / Fabriqué |
| Revêtement / Traitement de surface | Peinture antirouille, Peinture noire à l'huile, Jaune Transparent, Plaqué zinc, Galvanisé à froid et à chaud |
Buttweld Concentric Reducer Manufacturing Standards
| ASME Standard | ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43 |
| DIN Standard | DIN28011, DIN2617, DIN2616, DIN2615, DIN2605 |
| EN Standard | EN10253-2, EN10253-1 |
| ASME B16.25 | Buttwelding Ends |
| ASME B16.9 | Factory-Made Wrought Fittings Buttwelding |
| ASME B16.28 | Wrought Steel Eccentric Reducer |
| ASTM A403 – ASME SA403 | Standard Specification for Wrought Austenitic Stainless Steel Piping Fitting |
| MSS SP-43 | Wrought & Fabricated Butt-Welding Fitting for Low Pressure, Corrosion Resistant Applications |
BUTTWELD CONCENTRIC REDUCER – MATERIALS & NOTES
| Stainless Steel Concentric Reducers – Buttweld | ASTM A403 WP316/316L, ASTM A403 SA / UN 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DEPUIS 1.4301, DIN1.4306, DEPUIS 1.4401, DEPUIS 1.4404 |
| Duplex & Super Duplex Steel Concentric Reducers – Buttweld | ASTMA 815, ASME SA 815 NOUS NON S31803, S32205. États-Unis S32750, S32950. Numéro de matériau. 1.4462 |
| Carbon Steel Concentric Reducers – Buttweld | ASTMA234, ASME SA234 WPB , WPBW, POURQUOI 42, POURQUOI 46, POURQUOI 52, WPH 60, POURQUOI 65 & POURQUOI 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 | ASTMB336, ASME SB336, Nickel 200 (États-Unis Non. N°2200), Nickel 201 (États-Unis Non. N02201), Monel 400 (États-Unis Non. N04400), Monel 500 (États-Unis Non. N05500), Inconel 800 (États-Unis Non. N08800), Inconel 825 (États-Unis Non. N08825), Inconel 600 (États-Unis Non. N06600), Inconel 625 (États-Unis Non. N06625), Inconel 601 (États-Unis Non. N06601), Hastelloy C 276 (États-Unis Non. N10276), Alliage 20 (États-Unis Non. N08020), Titane (Première année & II), Cupro-Nickel 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.
| Taille nominale du tuyau (NPS) | Diamètre extérieur(DE) en biseau | 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
| Taille nominale du tuyau | 1/2 à 2.1/2 | 3 à 3.1/2 | 4 | 5 à 8 |
| Diamètre extérieur en biseau (D) |
+ 1.6 – 0.8 |
1.6 | 1.6 | + 2.4 – 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Overall Length (H) | 2 | 2 | 2 | 2 |
| Taille nominale du tuyau | 10 à 18 | 20 à 24 | 26 à 30 | 32 à 48 |
| Diamètre extérieur en biseau (D) |
+ 4 – 3.2 |
+ 6.4 – 4.8 |
+ 6.4 – 4.8 |
+ 6.4 – 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4 – 4.8 |
+ 6.4 – 4.8 |
| Overall Length (H) | 2 | 2 | 5 | 5 |
| Épaisseur de paroi (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Welding Concentric Reducer Weight Calculator
Approximate weight of a Butt welding Eccentric Reducer are calculated supported its header length, header size, branch size, branch length, header wall thickness and branch wall thickness. Please note that actual weight of a tee from a particular manufacturer might vary counting on manufacturing methodology. Dimensional standards like ASME B16.9 do not supply weights of butt attachment fittings.
Weight of a Butt Weld Eccentric Reducer as per ASME B16.9 is calculated as per following formula :
0.02466 * S <(D+d)/2 – S> * H / 1000
W = Weight in Kg
OD1 = Large Size Outside Diameter (mm)
OD2 = Smaller Size Outside Diameter (mm)
t = Wall Thickness (mm)
H = End to End Dimension (mm)
ASME B16.9 Buttweld Eccentric Reducer Weight Chart in KG
| 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 | Angle de sortie maximum | Max hors avion |
| Q | P. | |
| 1/2 un 4 | 1 | 2 |
| 5 un 8 | 2 | 4 |
| 10 un 12 | 3 | 5 |
| 14 un 16 | 3 | 7 |
| 18 un 24 | 4 | 10 |
| 26 un 30 | 5 | 10 |
| 32 un 42 | 5 | 13 |
| 44 un 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 |
| Steel Reducer Pipe Fittings | High Quality Concentric Reducer |
| Stainless Steel Concentric Reducer | Seamless Butt weld Concentric Reducer |
| Welded Butt weld Concentric Reducer | SS Concentric Reducers |
| Carbon Steel Concentric Reducer | Butt Weld Pipe Reducers |
| 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
