Buttweld Collar: Dimensions, Sizes, and Prices
Buttweld Collar is a type of Buttweld Fittings from Fortune Fittings Pvt. Ltd. serve as crucial components in piping systems, facilitating the connection of pipes of different sizes. With our dedication to quality, customization options, and exceptional customer service, we are poised to meet the diverse needs of clients across various industries.
Available in a variety of sizes and dimensions, our Buttweld Collars are versatile enough to be utilized in a wide array of piping applications. From standard sizes to customizable options tailored to specific requirements, our collars offer flexibility suitable for both residential plumbing and large-scale industrial projects.
What sets Fortune Fittings apart is our unwavering commitment to quality. We utilize only the finest-grade raw materials in our manufacturing processes, ensuring that our products consistently meet or exceed industry standards.
In addition to quality and customization, we pride ourselves on our customer-centric approach. By closely collaborating with our clients, we gain insights into their unique needs and deliver tailored solutions that precisely meet their requirements. This personalized approach has garnered us a loyal customer base and a sterling reputation for excellence in the industry.
With a ready inventory of Buttweld Collar in various sizes, including 2 inch, 3/8, 4×4, 5/8, 6 inch, 7 inch, and 8 inch Buttweld Collar Pipe Fittings, Fortune Fittings Pvt. Ltd. stands ready to meet your piping needs with precision and reliability.
What is a Buttweld Collar?
A Buttweld Collar is a type of pipe fitting used to connect two pipes of different sizes in a piping system. It serves as a coupling device, allowing for a secure and leak-proof joint between the pipes. The collar is welded onto the end of one pipe and then connected to the end of another pipe of a different size, providing a transition point between the two. This component is commonly used in various industrial applications to accommodate piping systems with different diameters, ensuring efficient fluid flow while maintaining structural integrity.
Buttweld Collar dimension
The dimensions of a Buttweld Collar play a crucial role in ensuring proper fit and functionality within a piping system.
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Materials Used in Buttweld Collar
Buttweld Collars are manufactured using a variety of high-quality materials, each selected for its specific properties and suitability for various applications. Some common materials used in the construction of Buttweld Collars include:
1. Stainless Steel: Stainless steel is renowned for its exceptional corrosion resistance, strength, and durability. It finds extensive use in industries where hygiene and resistance to corrosion are paramount, such as food processing, pharmaceuticals, and chemical processing.
2. Carbon Steel: Carbon steel is prized for its high strength and cost-effectiveness. It is commonly employed in industrial settings where high pressure and temperature are prevalent, including oil and gas pipelines, power plants, and construction.
3. Alloy Steel: Alloy steel incorporates additional alloying elements like chromium, molybdenum, or nickel, enhancing its mechanical properties, corrosion resistance, and temperature resistance. Alloy steel Buttweld Collars are often utilized in demanding applications such as aerospace, automotive, and petrochemical industries.
4. Duplex Stainless Steel: Duplex stainless steel offers a unique combination of high strength and corrosion resistance, making it suitable for harsh environments such as offshore oil and gas platforms, marine applications, and chemical processing plants.
5. Nickel Alloys: Nickel alloys boast exceptional corrosion resistance, heat resistance, and strength at elevated temperatures. They are ideal for applications in chemical processing, aerospace, and marine industries where corrosion and temperature extremes are prevalent.
The selection of material depends on various factors, including the operating environment, temperature, pressure, and fluid characteristics. Manufacturers carefully choose materials to ensure optimal performance, longevity, and compatibility with specific applications.
Applications of Buttweld Collar
Buttweld Collars are versatile components with a wide range of applications across various industries, thanks to their ability to join two pipes of different diameters seamlessly. Some common applications include:
1. Piping Systems: Buttweld Collars are essential in piping systems for connecting pipes of different sizes, ensuring smooth flow transitions and maintaining structural integrity.
2. Pipeline Construction: Used in the construction of pipelines for oil, gas, water, and other fluids, providing a reliable connection between pipes of varying diameters.
3. Plumbing: Employed in plumbing systems for residential, commercial, and industrial applications to connect pipes of different sizes, facilitating efficient water distribution and drainage.
4. Chemical Processing Plants: Integral in chemical processing facilities for connecting pipes carrying various chemicals, acids, and solvents, ensuring safe and efficient fluid transfer.
5. Petrochemical Industry: Utilized in refineries and petrochemical plants for connecting pipes handling petroleum products, gases, and chemicals, ensuring reliable operation and safety.
6. Water Treatment Plants: Applied in water treatment facilities for connecting pipes carrying treated water, chemicals, and wastewater, facilitating the purification and distribution of water.
7. Construction Projects: Used in construction projects for connecting pipes in structural applications, drainage systems, and utilities, ensuring efficient fluid flow and structural integrity.
8. Marine and Shipbuilding: Employed in shipbuilding and marine applications for connecting pipes in ship systems, such as ballast systems, cooling systems, and fuel lines, ensuring reliable fluid transfer aboard vessels.
9. HVAC Systems: Integrated into heating, ventilation, and air conditioning (HVAC) systems for connecting ducts and pipes of different sizes, ensuring optimal airflow and temperature control.
10. Power Plants: Utilized in power generation facilities for connecting pipes carrying steam, water, and coolant fluids, ensuring efficient heat transfer and energy production.
The versatility, durability, and reliability of Buttweld Collars make them indispensable components in various industries, facilitating seamless connections between pipes of different sizes and ensuring the efficient transfer of fluids in diverse applications.
Purchase Buttweld Collar
For detailed information on ASME B16.9 Buttweld Collar, 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.