Buttweld Reducing Cross: Dimensions, Sizes, and Prices
Fortune Fittings Pvt. Ltd. is your trusted partner for high-quality Buttweld Reducing Cross, meticulously crafted to meet industry standards such as ASME B16.9. Our commitment to excellence and precision manufacturing has made us a preferred choice for businesses across various sectors.
Our Buttweld Reducing Crosses are engineered to cater to a diverse range of applications, offering unparalleled performance and reliability. Whether it’s chemical plants, oil refineries, petrochemical facilities, or hydraulic systems, our crosses are designed to meet the stringent demands of modern industries.
We understand that every project is unique, which is why our Buttweld Reducing Crosses are available in a variety of sizes to suit your specific requirements. From standard materials like stainless steel and carbon steel to specialized options like copper and brass, we offer a comprehensive range to ensure compatibility with various applications.
At Fortune Fittings Pvt. Ltd., we prioritize quality and durability in every product we manufacture. Our Buttweld Reducing Crosses undergo rigorous quality checks to ensure they meet the highest standards of performance and safety. With precise dimensions and robust construction, our crosses are built to withstand high-pressure environments and provide reliable operation even under extreme conditions.
Experience the difference with Fortune Fittings Pvt. Ltd. Reducing Crosses – the perfect combination of quality, reliability, and performance for your piping needs.
What is a Buttweld Reducing Cross?
A Buttweld Reducing Cross is a type of pipe fitting used to connect four pipes of varying diameters in a piping system. It features four openings of different sizes arranged in a cross shape, with one larger diameter and three smaller diameters. This design allows for the redirection of flow between pipes of different sizes, facilitating efficient fluid distribution in industrial applications.
Buttweld Reducing Cross dimensions
The dimensions of a Buttweld Reducing Cross play a crucial role in ensuring proper fit and functionality within a piping system.
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Materials Used in Buttweld Reducing Cross
The Buttweld Reducing Cross, manufactured by Fortune Fittings Pvt. Ltd., is crafted with precision using a variety of high-quality materials to ensure durability and reliability. These materials include:
1. Stainless Steel: Known for its corrosion resistance and strength, stainless steel is a popular choice for Buttweld Reducing Crosses, especially in environments where corrosion is a concern.
2. Carbon Steel: Carbon steel offers excellent strength and durability, making it suitable for Buttweld Reducing Crosses used in high-pressure and high-temperature applications.
3. Copper: Copper Buttweld Reducing Crosses are preferred for their superior conductivity and resistance to corrosion, making them ideal for specialized applications where electrical conductivity is essential.
4. Brass: Brass Buttweld Reducing Crosses are chosen for their corrosion resistance and aesthetic appeal, making them suitable for decorative and low-pressure applications.
Fortune Fittings Pvt. Ltd. ensures that all materials used in the manufacturing of Buttweld Reducing Crosses meet industry standards and customer specifications, providing reliable performance in diverse industrial settings.
Applications of Buttweld Reducing Cross
The Buttweld Reducing Cross, offered by Fortune Fittings Pvt. Ltd., finds versatile applications across various industries due to its ability to accommodate different pipe sizes and facilitate efficient fluid flow. Some common applications include:
1. Chemical Plants: Buttweld Reducing Crosses are used in chemical processing plants to redirect and regulate the flow of various chemicals through pipelines of different diameters.
2. Oil Refineries: In oil refineries, Buttweld Reducing Crosses are employed to connect pipelines carrying crude oil, refined products, and by-products, ensuring smooth and efficient operation of the refining processes.
3. Petrochemical Plants: Buttweld Reducing Crosses play a crucial role in petrochemical plants by enabling the seamless integration of pipelines transporting different petrochemical products, such as gases, liquids, and intermediates.
4. Hydraulic Systems: Hydraulic systems utilize Buttweld Reducing Crosses to connect hydraulic pipes of varying diameters, allowing for the transmission of hydraulic fluids with controlled pressure and flow rates in machinery and equipment.
5. Industrial Pipelines: Buttweld Reducing Crosses are extensively used in industrial piping systems to join pipes of different sizes, facilitating the distribution of water, steam, gases, and other fluids in manufacturing facilities and utility networks.
6. Construction Projects: Construction projects often require Buttweld Reducing Crosses for plumbing and HVAC systems to connect pipes of different sizes, ensuring efficient water distribution, heating, and cooling throughout buildings.
7. Shipbuilding: In shipbuilding, Buttweld Reducing Crosses are utilized in piping systems to accommodate various fluid transfer requirements, including freshwater, seawater, fuel, and lubricants, in different sections of the vessel.
Fortune Fittings Pvt. Ltd. offers high-quality Buttweld Reducing Crosses designed to meet the demanding requirements of these diverse applications, providing reliable performance and long-term durability in critical industrial environments.
Purchase Buttweld Reducing Cross
For detailed information on ASME B16.9 Buttweld Reducing Cross, including types, weight chart, size chart, tolerance, and dimensions with drawings, click on your desired fittings. Need a quick quote or price list? CLICK HERE!
ASME B16.9 Buttweld Fittings Types and Applications
ASME B16.9 standards cover a wide range of buttweld fittings, including:
These fittings find applications across various industries, offering reliable performance and leak-free connections in critical piping systems.
Optimizing Your Piping System with Buttweld Fittings
Whether you’re in the chemical, fabrication, food processing, or power generation industry, choosing the right buttweld fittings is essential for optimizing your piping system’s performance. From stainless steel pipe fittings to butt weld pipe fittings, Fortune Fittings Pvt. Ltd. offers a comprehensive range of high-quality fittings to meet your specific requirements.
In conclusion, buttweld fittings play a crucial role in ensuring the efficiency and reliability of piping systems across industries. By understanding the types, materials, and applications of buttweld fittings, you can make informed decisions to optimize your piping infrastructure for long-term success.
For more information on buttweld fittings and other piping components, visit [Fortune Fittings Pvt. Ltd.] today!
Buttweld Dimensions
45°-90° LR and 3D ASME B16.9
| NPS | O.D.D | 90° LRA | 45° LRB | 90° 3DA | 45° 3DB |
| 1/2 | 21.3 | 38 | 16 | ||
| 3/4 | 26.7 | 38 | 19 | 57 | 24 |
| 1 | 33.4 | 38 | 22 | 76 | 31 |
| 1.1/4 | 42.2 | 48 | 25 | 95 | 39 |
| 1.1/2 | 48.3 | 57 | 29 | 114 | 47 |
| 2 | 60.3 | 76 | 35 | 152 | 63 |
| 2.1/2 | 73 | 95 | 44 | 190 | 79 |
| 3 | 88.9 | 114 | 51 | 229 | 95 |
| 3.1/2 | 101.6 | 133 | 57 | 267 | 111 |
| 4 | 114.3 | 152 | 64 | 305 | 127 |
| 5 | 141.3 | 190 | 79 | 381 | 157 |
| 6 | 168.3 | 229 | 95 | 457 | 189 |
| 8 | 219.1 | 305 | 127 | 610 | 252 |
| 10 | 273 | 381 | 159 | 762 | 316 |
| 12 | 323.8 | 457 | 190 | 914 | 378 |
| 14 | 355.6 | 533 | 222 | 1067 | 441 |
| 16 | 406.4 | 610 | 254 | 1219 | 505 |
| 18 | 457 | 686 | 286 | 1372 | 568 |
| 20 | 508 | 762 | 318 | 1524 | 632 |
| 22 | 559 | 838 | 343 | 1676 | 694 |
| 24 | 610 | 914 | 381 | 1829 | 757 |
| 26 | 660 | 991 | 406 | 1981 | 821 |
| 28 | 711 | 1067 | 438 | 2134 | 883 |
| 30 | 762 | 1143 | 470 | 2286 | 946 |
| 32 | 813 | 1219 | 502 | 2438 | 1010 |
| 34 | 864 | 1295 | 533 | 2591 | 1073 |
| 36 | 914 | 1372 | 565 | 2743 | 1135 |
| 38 | 965 | 1448 | 600 | 2896 | 1200 |
| 40 | 1016 | 1524 | 632 | 3048 | 1264 |
| 42 | 1067 | 1600 | 660 | 3200 | 1326 |
| 44 | 1118 | 1676 | 695 | 3353 | 1389 |
| 46 | 1168 | 1753 | 727 | 3505 | 1453 |
| 48 | 1219 | 1829 | 759 | 3658 | 1516 |
Dimensional Tolerances of Butt Weld Elbows 45° & 90° LR & 3D ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (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 |
| Center to End LR (A/B) | 2 | 2 | 2 | 2 |
| Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (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 |
| Center to End LR (A/B) | 2 | 2 | 3 | 5 |
| Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Dimensions Butt Weld Elbows
45°-90° LR and 3D ASME B16.9
| NPS | O.D.D | 90° LRA | 45° LRB | 90° 3DA | 45° 3DB |
| 1/2 | 21.3 | 38 | 16 | ||
| 3/4 | 26.7 | 38 | 19 | 57 | 24 |
| 1 | 33.4 | 38 | 22 | 76 | 31 |
| 1.1/4 | 42.2 | 48 | 25 | 95 | 39 |
| 1.1/2 | 48.3 | 57 | 29 | 114 | 47 |
| 2 | 60.3 | 76 | 35 | 152 | 63 |
| 2.1/2 | 73 | 95 | 44 | 190 | 79 |
| 3 | 88.9 | 114 | 51 | 229 | 95 |
| 3.1/2 | 101.6 | 133 | 57 | 267 | 111 |
| 4 | 114.3 | 152 | 64 | 305 | 127 |
| 5 | 141.3 | 190 | 79 | 381 | 157 |
| 6 | 168.3 | 229 | 95 | 457 | 189 |
| 8 | 219.1 | 305 | 127 | 610 | 252 |
| 10 | 273 | 381 | 159 | 762 | 316 |
| 12 | 323.8 | 457 | 190 | 914 | 378 |
| 14 | 355.6 | 533 | 222 | 1067 | 441 |
| 16 | 406.4 | 610 | 254 | 1219 | 505 |
| 18 | 457 | 686 | 286 | 1372 | 568 |
| 20 | 508 | 762 | 318 | 1524 | 632 |
| 22 | 559 | 838 | 343 | 1676 | 694 |
| 24 | 610 | 914 | 381 | 1829 | 757 |
| 26 | 660 | 991 | 406 | 1981 | 821 |
| 28 | 711 | 1067 | 438 | 2134 | 883 |
| 30 | 762 | 1143 | 470 | 2286 | 946 |
| 32 | 813 | 1219 | 502 | 2438 | 1010 |
| 34 | 864 | 1295 | 533 | 2591 | 1073 |
| 36 | 914 | 1372 | 565 | 2743 | 1135 |
| 38 | 965 | 1448 | 600 | 2896 | 1200 |
| 40 | 1016 | 1524 | 632 | 3048 | 1264 |
| 42 | 1067 | 1600 | 660 | 3200 | 1326 |
| 44 | 1118 | 1676 | 695 | 3353 | 1389 |
| 46 | 1168 | 1753 | 727 | 3505 | 1453 |
| 48 | 1219 | 1829 | 759 | 3658 | 1516 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (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 |
| Center to End LR (A/B) | 2 | 2 | 2 | 2 |
| Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (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 |
| Center to End LR (A/B) | 2 | 2 | 3 | 5 |
| Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Weld Elbows 90°-SR- ASME B16.9 
| NPS | O.D.D | cteA | NPS | O.D.D | cteA |
| 1 | 33.4 | 25 | 8 | 219.1 | 203 |
| 1.1/4 | 42.2 | 32 | 10 | 273 | 254 |
| 1.1/2 | 48.3 | 38 | 12 | 323.8 | 305 |
| 2 | 60.3 | 51 | 14 | 355.6 | 356 |
| 2.1/2 | 73 | 64 | 16 | 406.4 | 406 |
| 3 | 88.9 | 76 | 18 | 457 | 457 |
| 3.1/2 | 101.6 | 89 | 20 | 508 | 508 |
| 4 | 114.3 | 102 | 22 | 559 | 559 |
| 5 | 141.3 | 127 | 24 | 610 | 610 |
| 6 | 168.3 | 152 | – | – | – |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (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 |
| cte (A) | 2 | 2 | 2 | 2 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (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 |
| cte (A) | 2 | 2 | 3 | 5 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Weld Elbows 180° LR & SR ASME B16.9
| NPS | O.D. D | 180° LR | 180° SR | ||
| Center to Center O | Back toFace K | Center to Center O | Back toFace K | ||
| 1/2 | 21.3 | 76 | 48 | ||
| 3/4 | 26.7 | 76 | 51 | ||
| 1 | 33.4 | 76 | 56 | 51 | 41 |
| 1.1/4 | 42.2 | 95 | 70 | 64 | 52 |
| 1.1/2 | 48.3 | 114 | 83 | 76 | 62 |
| 2 | 60.3 | 152 | 106 | 102 | 81 |
| 2.1/2 | 73 | 190 | 132 | 127 | 100 |
| 3 | 88.9 | 229 | 159 | 152 | 121 |
| 3.1/2 | 101.6 | 267 | 184 | 178 | 140 |
| 4 | 114.3 | 305 | 210 | 203 | 159 |
| 5 | 141.3 | 381 | 262 | 254 | 197 |
| 6 | 168.3 | 457 | 313 | 305 | 237 |
| 8 | 219.1 | 610 | 414 | 406 | 313 |
| 10 | 273 | 762 | 518 | 508 | 391 |
| 12 | 323.8 | 914 | 619 | 610 | 467 |
| 14 | 355.6 | 1067 | 711 | 711 | 533 |
| 16 | 406.4 | 1219 | 813 | 813 | 610 |
| 18 | 457 | 1372 | 914 | 914 | 686 |
| 20 | 508 | 1524 | 1016 | 1016 | 762 |
| 22 | 559 | 1676 | 1118 | 1118 | 838 |
| 24 | 610 | 1829 | 1219 | 1219 | 914 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 |
| Center to Center (O) | 6 | 6 | 6 |
| Back to Face (K) | 6 | 6 | 6 |
| Nominal Pipe Size | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameterat Bevel (D) | + 2.4– 1.6 | + 4– 3.2 | + 6.4– 4.8 |
| Inside Diameter at End | 1.6 | 3.2 | 4.8 |
| Center to Center (O) | 6 | 10 | 10 |
| Back to Face (K) | 6 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | ||
Butt Weld Elbows 180° LR & SR ASME B16.9
| NPS | O.D. D | 180° LR | 180° SR | ||
| Center to Center O | Back toFace K | Center to Center O | Back toFace K | ||
| 1/2 | 21.3 | 76 | 48 | ||
| 3/4 | 26.7 | 76 | 51 | ||
| 1 | 33.4 | 76 | 56 | 51 | 41 |
| 1.1/4 | 42.2 | 95 | 70 | 64 | 52 |
| 1.1/2 | 48.3 | 114 | 83 | 76 | 62 |
| 2 | 60.3 | 152 | 106 | 102 | 81 |
| 2.1/2 | 73 | 190 | 132 | 127 | 100 |
| 3 | 88.9 | 229 | 159 | 152 | 121 |
| 3.1/2 | 101.6 | 267 | 184 | 178 | 140 |
| 4 | 114.3 | 305 | 210 | 203 | 159 |
| 5 | 141.3 | 381 | 262 | 254 | 197 |
| 6 | 168.3 | 457 | 313 | 305 | 237 |
| 8 | 219.1 | 610 | 414 | 406 | 313 |
| 10 | 273 | 762 | 518 | 508 | 391 |
| 12 | 323.8 | 914 | 619 | 610 | 467 |
| 14 | 355.6 | 1067 | 711 | 711 | 533 |
| 16 | 406.4 | 1219 | 813 | 813 | 610 |
| 18 | 457 | 1372 | 914 | 914 | 686 |
| 20 | 508 | 1524 | 1016 | 1016 | 762 |
| 22 | 559 | 1676 | 1118 | 1118 | 838 |
| 24 | 610 | 1829 | 1219 | 1219 | 914 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 |
| Center to Center (O) | 6 | 6 | 6 |
| Back to Face (K) | 6 | 6 | 6 |
| Nominal Pipe Size | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameterat Bevel (D) | + 2.4– 1.6 | + 4– 3.2 | + 6.4– 4.8 |
| Inside Diameter at End | 1.6 | 3.2 | 4.8 |
| Center to Center (O) | 6 | 10 | 10 |
| Back to Face (K) | 6 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | ||
Dimensions Butt Weld Straight Tees ASME B16.9
| NPS | O.D.D | Center to EndC | Center to EndM |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 29 | 29 |
| 1 | 33.4 | 38 | 38 |
| 1.1/4 | 42.2 | 48 | 48 |
| 1.1/2 | 48.3 | 57 | 57 |
| 2 | 60.3 | 64 | 64 |
| 2.1/2 | 73 | 76 | 76 |
| 3 | 88.9 | 86 | 86 |
| 3.1/2 | 101.6 | 95 | 95 |
| 4 | 114.3 | 105 | 105 |
| 5 | 141.3 | 124 | 124 |
| 6 | 168.3 | 143 | 143 |
| 8 | 219.1 | 178 | 178 |
| 10 | 273 | 216 | 216 |
| 12 | 323.8 | 254 | 254 |
| 14 | 355.6 | 279 | 279 |
| 16 | 406.4 | 305 | 305 |
| 18 | 457 | 343 | 343 |
| 20 | 508 | 381 | 381 |
| 22 | 559 | 419 | 419 |
| 24 | 610 | 432 | 432 |
| 26 | 660 | 495 | 495 |
| 28 | 711 | 521 | 521 |
| 30 | 762 | 559 | 559 |
| 32 | 813 | 597 | 597 |
| 34 | 864 | 635 | 635 |
| 36 | 914 | 673 | 673 |
| 38 | 965 | 711 | 711 |
| 40 | 1016 | 749 | 749 |
| 42 | 1067 | 762 | 711 |
| 44 | 1118 | 813 | 762 |
| 46 | 1168 | 851 | 800 |
| 48 | 1219 | 889 | 838 |
| Nominal Pipe Size | 1/2to2.1/2 | 3to3.1/2 | 4 | 5to8 | 10to18 | 20to24 | 26to30 | 32to48 |
| Outside Diaat Bevel (D) | +1.6-0.8 | 1.6 | 1.6 | +2.4-1.6 | +4-3.2 | +6.4-4.8 | +6.4-4.8 | +6.4-4.8 |
| Inside Dia at End | 0.8 | 1.6 | 1.6 | 1.6 | 3.2 | 4.8 | +6.4-4.8 | +6.4-4.8 |
| Center to End (C / M) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 |
| Wall Thk (t) | Not less than 87.5% of Nominal Wall Thickness | |||||||
Dimensions Butt Weld
Straight Tees ASME B16.9
| NPS | O.D.D | Center to EndC | Center to EndM |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 29 | 29 |
| 1 | 33.4 | 38 | 38 |
| 1.1/4 | 42.2 | 48 | 48 |
| 1.1/2 | 48.3 | 57 | 57 |
| 2 | 60.3 | 64 | 64 |
| 2.1/2 | 73 | 76 | 76 |
| 3 | 88.9 | 86 | 86 |
| 3.1/2 | 101.6 | 95 | 95 |
| 4 | 114.3 | 105 | 105 |
| 5 | 141.3 | 124 | 124 |
| 6 | 168.3 | 143 | 143 |
| 8 | 219.1 | 178 | 178 |
| 10 | 273 | 216 | 216 |
| 12 | 323.8 | 254 | 254 |
| 14 | 355.6 | 279 | 279 |
| 16 | 406.4 | 305 | 305 |
| 18 | 457 | 343 | 343 |
| 20 | 508 | 381 | 381 |
| 22 | 559 | 419 | 419 |
| 24 | 610 | 432 | 432 |
| 26 | 660 | 495 | 495 |
| 28 | 711 | 521 | 521 |
| 30 | 762 | 559 | 559 |
| 32 | 813 | 597 | 597 |
| 34 | 864 | 635 | 635 |
| 36 | 914 | 673 | 673 |
| 38 | 965 | 711 | 711 |
| 40 | 1016 | 749 | 749 |
| 42 | 1067 | 762 | 711 |
| 44 | 1118 | 813 | 762 |
| 46 | 1168 | 851 | 800 |
| 48 | 1219 | 889 | 838 |
| Nominal Pipe Size | 1/2to2.1/2 | 3to3.1/2 | 4 | 5to8 | 10to18 | 20to24 | 26to30 | 32to48 |
| Outside Diaat Bevel (D) | +1.6-0.8 | 1.6 | 1.6 | +2.4-1.6 | +4-3.2 | +6.4-4.8 | +6.4-4.8 | +6.4-4.8 |
| Inside Dia at End | 0.8 | 1.6 | 1.6 | 1.6 | 3.2 | 4.8 | +6.4-4.8 | +6.4-4.8 |
| Center to End (C / M) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 |
| Wall Thk (t) | Not less than 87.5% of Nominal Wall Thickness | |||||||
Butt Weld Reducers
Concentric and Eccentric ASME B16.9
| NPS | O.D.D | O.D.D1 | LengthH |
| 3/4 – 1/2 | 26.7 | 21.3 | 38 |
| 1 – 1/2 | 33.4 | 21.3 | 51 |
| 1 – 3/4 | 33.4 | 26.7 | 51 |
| 1.1/4 – 1/2 | 42.2 | 21.3 | 51 |
| 1.1/4 – 3/4 | 42.2 | 26.7 | 51 |
| 1.1/4 – 1 | 42.2 | 33.4 | 51 |
| 1.1/2 – 1/2 | 48.3 | 21.3 | 64 |
| 1.1/2 – 3/4 | 48.3 | 26.7 | 64 |
| 1.1/2 – 1 | 48.3 | 33.4 | 64 |
| 1.1/2 – 1.1/4 | 48.3 | 42.2 | 64 |
| 2 – 3/4 | 60.3 | 26.7 | 76 |
| 2 – 1 | 60.3 | 33.4 | 76 |
| 2 – 1.1/4 | 60.3 | 42.2 | 76 |
| 2 – 1.1/2 | 60.3 | 48.3 | 76 |
| 2.1/2 – 1 | 73 | 33.4 | 89 |
| 2.1/2 – 1.1/4 | 73 | 42.2 | 89 |
| 2.1/2 – 1.1/2 | 73 | 48.3 | 89 |
| 2.1/2 – 2 | 73 | 60.3 | 89 |
| 3 – 1.1/4 | 88.9 | 42.2 | 89 |
| 3 – 1.1/2 | 88.9 | 48.3 | 89 |
| 3 – 2 | 88.9 | 60.3 | 89 |
| 3 – 2.1/2 | 88.9 | 73 | 89 |
| 3.1/2 – 1.1/4 | 101.6 | 42.2 | 102 |
| 3.1/2 – 1.1/2 | 101.6 | 48.3 | 102 |
| 3.1/2 – 2 | 101.6 | 60.3 | 102 |
| 3.1/2 – 2.1/2 | 101.6 | 73 | 102 |
| 3.1/2 – 3 | 101.6 | 88.9 | 102 |
| 4 – 1.1/2 | 114.3 | 48.3 | 102 |
| 4 – 2 | 114.3 | 60.3 | 102 |
| 4 – 2.1/2 | 114.3 | 73 | 102 |
| 4 – 3 | 114.3 | 88.9 | 102 |
| 4 – 3.1/2 | 114.3 | 101.6 | 102 |
| 5 – 2 | 141.3 | 60.3 | 127 |
| 5 – 2.1/2 | 141.3 | 73 | 127 |
| 5 – 3 | 141.3 | 88.9 | 127 |
| 5 – 3.1/2 | 141.3 | 101.6 | 127 |
| 5 – 4 | 141.3 | 114.3 | 127 |
| 6 – 2.1/2 | 168.3 | 73 | 140 |
| 6 – 3 | 168.3 | 88.9 | 140 |
| 6 – 3.1/2 | 168.3 | 101.6 | 140 |
| 6 – 4 | 168.3 | 114.3 | 140 |
| 6 – 5 | 168.3 | 141.3 | 140 |
| 8 – 3.1/2 | 219.1 | 101.6 | 152 |
| 8 – 4 | 219.1 | 114.3 | 152 |
| 8 – 5 | 219.1 | 141.3 | 152 |
| 8 – 6 | 219.1 | 168.3 | 152 |
| 10 – 4 | 273 | 114.3 | 178 |
| 10 – 5 | 273 | 141.3 | 178 |
| 10 – 6 | 273 | 168.3 | 178 |
| 10 – 8 | 273 | 219.1 | 178 |
| 12 – 5 | 323.9 | 141.3 | 203 |
| 12 – 6 | 323.9 | 168.3 | 203 |
| 12 – 8 | 323.9 | 219.1 | 203 |
| 12 – 10 | 323.9 | 273 | 203 |
| 14 – 6 | 355.6 | 168.3 | 330 |
| 14 – 8 | 355.6 | 219.1 | 330 |
| 14 – 10 | 355.6 | 273 | 330 |
| 14 – 12 | 355.6 | 323.9 | 330 |
| 16 – 8 | 406.4 | 219 | 356 |
| 16 – 10 | 406.4 | 273 | 356 |
| 16 – 12 | 406.4 | 323.9 | 356 |
| 16 – 14 | 406.4 | 355.6 | 356 |
| 18 – 10 | 457 | 273 | 381 |
| 18 – 12 | 457 | 323.9 | 381 |
| 18 – 14 | 457 | 355.6 | 381 |
| 18 – 16 | 457 | 406.4 | 381 |
| 20 – 12 | 508 | 323.9 | 508 |
| 20 – 14 | 508 | 355.6 | 508 |
| 20 – 16 | 508 | 406.4 | 508 |
| 20 – 18 | 508 | 457 | 508 |
| 22 – 14 | 559 | 355.6 | 508 |
| 22 – 16 | 559 | 406.4 | 508 |
| 22 – 18 | 559 | 457 | 508 |
| 22 – 20 | 559 | 508 | 508 |
| 24 – 16 | 610 | 406.4 | 508 |
| 24 – 18 | 610 | 457 | 508 |
| 24 – 20 | 610 | 508 | 508 |
| 24 – 22 | 610 | 559 | 508 |
| 26 – 18 | 660 | 457 | 610 |
| 26 – 20 | 660 | 508 | 610 |
| 26 – 22 | 660 | 559 | 610 |
| 26 – 24 | 660 | 610 | 610 |
| 28 – 18 | 711 | 457 | 610 |
| 28 – 20 | 711 | 508 | 610 |
| 28 – 24 | 711 | 610 | 610 |
| 28 – 26 | 711 | 660 | 610 |
| 30 – 20 | 762 | 508 | 610 |
| 30 – 24 | 762 | 610 | 610 |
| 30 – 26 | 762 | 660 | 610 |
| 30 – 28 | 762 | 711 | 610 |
| 32 – 24 | 813 | 610 | 610 |
| 32 – 26 | 813 | 660 | 610 |
| 32 – 28 | 813 | 711 | 610 |
| 32 – 30 | 813 | 762 | 610 |
| 34 – 24 | 864 | 610 | 610 |
| 34 – 26 | 864 | 660 | 610 |
| 34 – 30 | 864 | 762 | 610 |
| 34 – 32 | 864 | 813 | 610 |
| 36 – 24 | 914 | 610 | 610 |
| 36 – 26 | 914 | 660 | 610 |
| 36 – 30 | 914 | 762 | 610 |
| 36 – 32 | 914 | 813 | 610 |
| 36 – 34 | 914 | 864 | 610 |
| 38 – 26 | 965 | 660 | 610 |
| 38 – 28 | 965 | 711 | 610 |
| 38 – 30 | 965 | 762 | 610 |
| 38 – 32 | 965 | 813 | 610 |
| 38 – 34 | 965 | 864 | 610 |
| 38 – 36 | 965 | 914 | 610 |
| 40 – 30 | 1016 | 762 | 610 |
| 40 – 32 | 1016 | 813 | 610 |
| 40 – 34 | 1016 | 864 | 610 |
| 40 – 36 | 1016 | 914 | 610 |
| 40 – 38 | 1016 | 965 | 610 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameter at Bevel (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 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameter at Bevel (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 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Weld Reducers
Concentric and Eccentric ASME B16.9
| NPS | O.D.D | O.D.D1 | LengthH |
| 3/4 – 1/2 | 26.7 | 21.3 | 38 |
| 1 – 1/2 | 33.4 | 21.3 | 51 |
| 1 – 3/4 | 33.4 | 26.7 | 51 |
| 1.1/4 – 1/2 | 42.2 | 21.3 | 51 |
| 1.1/4 – 3/4 | 42.2 | 26.7 | 51 |
| 1.1/4 – 1 | 42.2 | 33.4 | 51 |
| 1.1/2 – 1/2 | 48.3 | 21.3 | 64 |
| 1.1/2 – 3/4 | 48.3 | 26.7 | 64 |
| 1.1/2 – 1 | 48.3 | 33.4 | 64 |
| 1.1/2 – 1.1/4 | 48.3 | 42.2 | 64 |
| 2 – 3/4 | 60.3 | 26.7 | 76 |
| 2 – 1 | 60.3 | 33.4 | 76 |
| 2 – 1.1/4 | 60.3 | 42.2 | 76 |
| 2 – 1.1/2 | 60.3 | 48.3 | 76 |
| 2.1/2 – 1 | 73 | 33.4 | 89 |
| 2.1/2 – 1.1/4 | 73 | 42.2 | 89 |
| 2.1/2 – 1.1/2 | 73 | 48.3 | 89 |
| 2.1/2 – 2 | 73 | 60.3 | 89 |
| 3 – 1.1/4 | 88.9 | 42.2 | 89 |
| 3 – 1.1/2 | 88.9 | 48.3 | 89 |
| 3 – 2 | 88.9 | 60.3 | 89 |
| 3 – 2.1/2 | 88.9 | 73 | 89 |
| 3.1/2 – 1.1/4 | 101.6 | 42.2 | 102 |
| 3.1/2 – 1.1/2 | 101.6 | 48.3 | 102 |
| 3.1/2 – 2 | 101.6 | 60.3 | 102 |
| 3.1/2 – 2.1/2 | 101.6 | 73 | 102 |
| 3.1/2 – 3 | 101.6 | 88.9 | 102 |
| 4 – 1.1/2 | 114.3 | 48.3 | 102 |
| 4 – 2 | 114.3 | 60.3 | 102 |
| 4 – 2.1/2 | 114.3 | 73 | 102 |
| 4 – 3 | 114.3 | 88.9 | 102 |
| 4 – 3.1/2 | 114.3 | 101.6 | 102 |
| 5 – 2 | 141.3 | 60.3 | 127 |
| 5 – 2.1/2 | 141.3 | 73 | 127 |
| 5 – 3 | 141.3 | 88.9 | 127 |
| 5 – 3.1/2 | 141.3 | 101.6 | 127 |
| 5 – 4 | 141.3 | 114.3 | 127 |
| 6 – 2.1/2 | 168.3 | 73 | 140 |
| 6 – 3 | 168.3 | 88.9 | 140 |
| 6 – 3.1/2 | 168.3 | 101.6 | 140 |
| 6 – 4 | 168.3 | 114.3 | 140 |
| 6 – 5 | 168.3 | 141.3 | 140 |
| 8 – 3.1/2 | 219.1 | 101.6 | 152 |
| 8 – 4 | 219.1 | 114.3 | 152 |
| 8 – 5 | 219.1 | 141.3 | 152 |
| 8 – 6 | 219.1 | 168.3 | 152 |
| 10 – 4 | 273 | 114.3 | 178 |
| 10 – 5 | 273 | 141.3 | 178 |
| 10 – 6 | 273 | 168.3 | 178 |
| 10 – 8 | 273 | 219.1 | 178 |
| 12 – 5 | 323.9 | 141.3 | 203 |
| 12 – 6 | 323.9 | 168.3 | 203 |
| 12 – 8 | 323.9 | 219.1 | 203 |
| 12 – 10 | 323.9 | 273 | 203 |
| 14 – 6 | 355.6 | 168.3 | 330 |
| 14 – 8 | 355.6 | 219.1 | 330 |
| 14 – 10 | 355.6 | 273 | 330 |
| 14 – 12 | 355.6 | 323.9 | 330 |
| 16 – 8 | 406.4 | 219 | 356 |
| 16 – 10 | 406.4 | 273 | 356 |
| 16 – 12 | 406.4 | 323.9 | 356 |
| 16 – 14 | 406.4 | 355.6 | 356 |
| 18 – 10 | 457 | 273 | 381 |
| 18 – 12 | 457 | 323.9 | 381 |
| 18 – 14 | 457 | 355.6 | 381 |
| 18 – 16 | 457 | 406.4 | 381 |
| 20 – 12 | 508 | 323.9 | 508 |
| 20 – 14 | 508 | 355.6 | 508 |
| 20 – 16 | 508 | 406.4 | 508 |
| 20 – 18 | 508 | 457 | 508 |
| 22 – 14 | 559 | 355.6 | 508 |
| 22 – 16 | 559 | 406.4 | 508 |
| 22 – 18 | 559 | 457 | 508 |
| 22 – 20 | 559 | 508 | 508 |
| 24 – 16 | 610 | 406.4 | 508 |
| 24 – 18 | 610 | 457 | 508 |
| 24 – 20 | 610 | 508 | 508 |
| 24 – 22 | 610 | 559 | 508 |
| 26 – 18 | 660 | 457 | 610 |
| 26 – 20 | 660 | 508 | 610 |
| 26 – 22 | 660 | 559 | 610 |
| 26 – 24 | 660 | 610 | 610 |
| 28 – 18 | 711 | 457 | 610 |
| 28 – 20 | 711 | 508 | 610 |
| 28 – 24 | 711 | 610 | 610 |
| 28 – 26 | 711 | 660 | 610 |
| 30 – 20 | 762 | 508 | 610 |
| 30 – 24 | 762 | 610 | 610 |
| 30 – 26 | 762 | 660 | 610 |
| 30 – 28 | 762 | 711 | 610 |
| 32 – 24 | 813 | 610 | 610 |
| 32 – 26 | 813 | 660 | 610 |
| 32 – 28 | 813 | 711 | 610 |
| 32 – 30 | 813 | 762 | 610 |
| 34 – 24 | 864 | 610 | 610 |
| 34 – 26 | 864 | 660 | 610 |
| 34 – 30 | 864 | 762 | 610 |
| 34 – 32 | 864 | 813 | 610 |
| 36 – 24 | 914 | 610 | 610 |
| 36 – 26 | 914 | 660 | 610 |
| 36 – 30 | 914 | 762 | 610 |
| 36 – 32 | 914 | 813 | 610 |
| 36 – 34 | 914 | 864 | 610 |
| 38 – 26 | 965 | 660 | 610 |
| 38 – 28 | 965 | 711 | 610 |
| 38 – 30 | 965 | 762 | 610 |
| 38 – 32 | 965 | 813 | 610 |
| 38 – 34 | 965 | 864 | 610 |
| 38 – 36 | 965 | 914 | 610 |
| 40 – 30 | 1016 | 762 | 610 |
| 40 – 32 | 1016 | 813 | 610 |
| 40 – 34 | 1016 | 864 | 610 |
| 40 – 36 | 1016 | 914 | 610 |
| 40 – 38 | 1016 | 965 | 610 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameter at Bevel (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 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameter at Bevel (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 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Dimensions Butt Weld Caps ASME B16.9 
| NPS | O.D. D | Length H | Length H(1) |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 25 | 25 |
| 1 | 33.4 | 38 | 38 |
| 1.1/4 | 42.2 | 38 | 38 |
| 1.1/2 | 48.3 | 38 | 38 |
| 2 | 60.3 | 38 | 44 |
| 2.1/2 | 73 | 38 | 51 |
| 3 | 88.9 | 51 | 64 |
| 3.1/2 | 101.6 | 64 | 76 |
| 4 | 114.3 | 64 | 76 |
| 5 | 141.3 | 76 | 89 |
| 6 | 168.3 | 89 | 102 |
| 8 | 219.1 | 102 | 127 |
| 10 | 273 | 127 | 152 |
| 12 | 323.8 | 152 | 178 |
| 14 | 355.6 | 165 | 191 |
| 16 | 406.4 | 178 | 203 |
| 18 | 457 | 203 | 229 |
| 20 | 508 | 229 | 254 |
| 22 | 559 | 254 | 254 |
| 24 | 610 | 267 | 305 |
| 26 | 660 | 267 | – |
| 28 | 711 | 267 | – |
| 30 | 762 | 267 | – |
| 32 | 813 | 267 | – |
| 34 | 864 | 237 | – |
| 36 | 914 | 267 | – |
| 38 | 965 | 305 | – |
| 40 | 1016 | 305 | – |
| 42 | 1067 | 305 | – |
| 44 | 1118 | 343 | – |
| 46 | 1168 | 343 | – |
| 48 | 1219 | 343 | – |
- Dimensions are in millimeters unless otherwise indicated.
- Wall thickness (t) must be specified by customer.
- The shape shall be ellipsoidal and shall conform to the requirements given in the ASME Boiler and Pressure Vessel Code.
- Length (H) applies for thickness not exceeding that given in column “Wall Thickness” for Length, H.
- Length (H1) applies for thickness greater than that given in column “Wall Thickness” for NPS 24 and smaller. For NPS 26 and larger, length H1 shall be by agreement between the manufacturerand purchaser.
Dimensional Tolerances of End Caps ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (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) | 3 | 3 | 3 | 6 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (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) | 6 | 6 | 10 | 10 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Weights of Buttweld Caps
| NPS | STD | XS | SCH 160 | XXS |
| 1 | 0.09 | 0.14 | 0.18 | 0.23 |
| 1.1/4 | 0.14 | 0.18 | 0.23 | 0.34 |
| 1.1/2 | 0.18 | 0.23 | 0.27 | 0.41 |
| 2 | 0.27 | 0.34 | 0.57 | 0.68 |
| 2.1/2 | 0.41 | 0.45 | 0.79 | 1.13 |
| 3 | 0.68 | 0.79 | 1.32 | 1.81 |
| 3.1/2 | 0.91 | 1.13 | – | 2.72 |
| 4 | 1.13 | 1.36 | 2.68 | 3.4 |
| 5 | 2.04 | 2.49 | 4.54 | 5.44 |
| 6 | 2.95 | 4.08 | 6.8 | 8.16 |
| 8 | 5.44 | 7.26 | 14.06 | 13.61 |
| 10 | 9.07 | 11.34 | 25.85 | – |
| 12 | 13.61 | 16.33 | 43.09 | – |
| 14 | 16.33 | 20.41 | – | – |
| 16 | 18.14 | 24.49 | – | – |
| 18 | 24.49 | 32.66 | – | – |
| 20 | 34.02 | 39.01 | – | – |
| 22 | 42.64 | 56.7 | – | – |
| 24 | 43.54 | 58.97 | – | – |
| 26 | 53.98 | 72.12 | – | – |
| 30 | 78.02 | 103.87 | – | – |
Buttweld Fitting Weights
ASME buttweld fitting specifications do not specify weights for fittings. Weights quoted in the table on this page are based on manufacturers information and should be considered as approximate and provided as a guide only (fitting weights can vary considerably between manufacturers due to differences in construction). Weights in these tables are taken from Hackney Ladish, Inc. Hackney Ladish, Inc. is one of the largest and most versatile fitting producers in the world. Hackney Ladish, Inc. is headquartered in Dallas, TX and operates 2 facilities containing 380,000 square feet of manufacturing.Dimensions Lap Joint Stub Ends schedule STD XS ASME B16.9 
| NPS | OD | T | G | F | R | kg |
| 1/2 | 21.3 | 2.77 | 34.9 | 76.2 | 3.18 | 0.16 |
| 3/4 | 26.7 | 2.87 | 42.9 | 76.2 | 3.18 | 0.23 |
| 1 | 33.4 | 3.38 | 50.8 | 101.6 | 3.18 | 0.29 |
| 1.1/4 | 42.2 | 3.56 | 63.5 | 101.6 | 4.76 | 0.45 |
| 1.1/2 | 48.3 | 3.68 | 73 | 101.6 | 6.35 | 0.54 |
| 2 | 60.3 | 3.91 | 92.1 | 152.4 | 7.94 | 1 |
| 2.1/2 | 73 | 5.16 | 104.8 | 152.4 | 7.94 | 1.5 |
| 3 | 88.9 | 5.49 | 127 | 152.4 | 9.53 | 2.1 |
| 3.1/2 | 101.6 | 5.74 | 139.7 | 152.4 | 9.53 | 2.5 |
| 4 | 114.3 | 6.02 | 157.2 | 152.4 | 11.11 | 3 |
| 5 | 141.3 | 6.55 | 185.7 | 203.2 | 11.11 | 5.4 |
| 6 | 168.3 | 7.11 | 215.9 | 203.2 | 12.70 | 7.3 |
| 8 | 219.1 | 8.18 | 269.9 | 203.2 | 12.70 | 11.6 |
| 10 | 273.1 | 9.27 | 323.9 | 254 | 12.70 | 18 |
| 12 | 323.9 | 9.53 | 381 | 254 | 12.70 | 21 |
| 14 | 355.6 | 9.53 | 412.8 | 304.8 | 12.70 | 28 |
| 16 | 406.4 | 9.53 | 469.9 | 304.8 | 12.70 | 34 |
| 18 | 457.2 | 9.53 | 533.4 | 304.8 | 12.70 | 39 |
| 20 | 508 | 9.53 | 584.2 | 304.8 | 12.70 | 44 |
| 24 | 609.6 | 9.53 | 692.2 | 304.8 | 12.70 | 57 |
| NPS | OD | T | G | F | R | kg |
| 1/2 | 21.3 | 3.73 | 34.9 | 76.2 | 3.18 | 0.2 |
| 3/4 | 26.7 | 3.91 | 42.9 | 76.2 | 3.18 | 0.3 |
| 1 | 33.4 | 4.55 | 50.8 | 101.6 | 3.18 | 0.4 |
| 1.1/4 | 42.2 | 4.85 | 63.5 | 101.6 | 4.76 | 0.6 |
| 1.1/2 | 48.3 | 5.08 | 73 | 101.6 | 6.35 | 0.7 |
| 2 | 60.3 | 5.54 | 92.1 | 152.4 | 7.94 | 1.4 |
| 2.1/2 | 73 | 7.01 | 104.8 | 152.4 | 7.94 | 2 |
| 3 | 88.9 | 7.62 | 127 | 152.4 | 9.53 | 2.9 |
| 3.1/2 | 101.6 | 8.08 | 139.7 | 152.4 | 9.53 | 3.4 |
| 4 | 114.3 | 8.56 | 157.2 | 152.4 | 11.11 | 4.1 |
| 5 | 141.3 | 9.53 | 185.7 | 203.2 | 11.11 | 7.5 |
| 6 | 168.3 | 10.97 | 215.9 | 203.2 | 12.70 | 10 |
| 8 | 219.1 | 12.70 | 269.9 | 203.2 | 12.70 | 16 |
| 10 | 273.1 | 12.70 | 323.9 | 254 | 12.70 | 24 |
| 12 | 323.9 | 12.70 | 381 | 254 | 12.70 | 29 |
| 14 | 355.6 | 12.70 | 412.8 | 304.8 | 12.70 | 38 |
| 16 | 406.4 | 12.70 | 469.9 | 304.8 | 12.70 | 43 |
| 18 | 457.2 | 12.70 | 533.4 | 304.8 | 12.70 | 49 |
| 20 | 508 | 12.70 | 584.2 | 304.8 | 12.70 | 63 |
| 24 | 609.6 | 12.70 | 692.2 | 304.8 | 12.70 | 76 |
Dimensional Tolerances of Stub Ends ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameter at Welding End (OD) | +1.6–0.8 | 1.6 | 1.6 | +2.29–1.6 | +4.06–3.05 | +6.35–4.83 |
| Overall Length (F) | 1.6 | 1.6 | 1.6 | 1.6 | 2 | 2 |
| Outside Diameter of Lap (G) | +0–0.76 | +0–0.76 | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 |
| Thickness of Lap (T) | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 |
| Fillet Radius of Lap (R) | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 | +0–1.6 | +0–1.6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||||
Dimensions butt welded Stub Ends
schedule 10S MSS SP-43 type A/B
| NPS | OD | T | G | F | R Type A | R Type B |
| 1/2 | 21.3 | 2.11 | 34.9 | 50.8 | 3.05 | 0.76 |
| 3/4 | 26.7 | 2.11 | 42.9 | 50.8 | 3.05 | 0.76 |
| 1 | 33.4 | 2.77 | 50.8 | 50.8 | 3.05 | 0.76 |
| 1.1/4 | 42.2 | 2.77 | 63.5 | 50.8 | 4.83 | 0.76 |
| 1.1/2 | 48.3 | 2.77 | 73 | 50.8 | 6.35 | 0.76 |
| 2 | 60.3 | 2.77 | 92.1 | 63.5 | 7.87 | 0.76 |
| 2.1/2 | 73 | 3.05 | 104.8 | 63.5 | 7.87 | 0.76 |
| 3 | 88.9 | 3.05 | 127 | 63.5 | 9.65 | 0.76 |
| 3.1/2 | 101.6 | 3.05 | 139.7 | 76.2 | 9.65 | 0.76 |
| 4 | 114.3 | 3.05 | 157.2 | 76.2 | 11.18 | 0.76 |
| 5 | 141.3 | 3.40 | 185.7 | 76.2 | 11.18 | 1.52 |
| 6 | 168.3 | 3.40 | 215.9 | 88.9 | 12.7 | 1.52 |
| 8 | 219.1 | 3.76 | 269.9 | 101.6 | 12.7 | 1.52 |
| 10 | 273.1 | 4.19 | 323.9 | 127 | 12.7 | 1.52 |
| 12 | 323.9 | 4.57 | 381 | 152.4 | 12.7 | 1.52 |
| 14 | 355.6 | 4.78 | 412.8 | 152.4 | 12.70 | 1.52 |
| 16 | 406.4 | 4.78 | 469.9 | 152.4 | 12.7 | 1.52 |
| 18 | 457.2 | 4.78 | 533.4 | 152.4 | 12.70 | 1.52 |
| 20 | 508 | 5.54 | 584.2 | 152.4 | 12.70 | 1.52 |
| 24 | 609.6 | 6.35 | 692.2 | 152.4 | 12.7 | 1.52 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameter at Welding End (OD) | 0.8 | 0.8 | 0.8 | +1.6–0.8 | +2.29–0.76 | +3.05–0.76 |
| Overall Length (F) | 1.6 | 1.6 | 1.6 | 1.6 | 2 | 2 |
| Outside Diameter of Lap (G) | +0–0.76 | +0–0.76 | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 |
| Thickness of Lap (T) | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 |
| Fillet Radius of Lap (R) | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 | +0–1.6 | +0–1.6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||||
- Type A for Lap Joint Flanges
- Type B for Slip On Flanges
- MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.