American Threaded 45° Elbow
- Size range:1/8“-4” (DN6-DN100), center to face 16-305mm
- Pressure Rating:2000LB-6000LB
- Wall thickness standard:SCH40/SCH80/XXS(1.73-8.74mm)
- Material range:carbon steel, stainless steel, alloy steel
- Thread standard:NPT 1:16 taper
- Applicable temperature:-29℃~260℃(carbon steel material)
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As a key component in pipeline steering, the threaded 45° elbow is forged to ensure structural strength, and its tapered NPT threads provide a high-pressure seal through both metal engagement and sealant. Typical applications include branch steering of oil pipelines and pressure cushioning of hydraulic systems. Compared with 90° elbows, they can significantly reduce flow resistance loss (about 30% pressure drop reduction). Modern products are designed to withstand 70MPa dynamic pulse pressure through SCH160+ wall thickness.
American Threaded 45° Elbow Dimensions
Below is a detailed sizing chart for American Threaded 45° Elbow, compiled from a combination of industry standards such as ASME B16.9 and ISO 4144. It covers the common range of nominal pipe sizes (NPS) from 1/2“ to 4” and includes key parameters such as outside diameter (OD), center to end dimensions, etc. The data is based on a standard Long Radius design with a bend radius of 1.5D (D is the nominal diameter). The threaded interface conforms to NPT (National Pipe Thread) standards with a 1:16 taper.
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Center to End Dimension | ||
| mm | inch | mm | inch | |
| 1/2″ | 21.3 | 0.839 | 16 | 0.63 |
| 3/4″ | 26.9 | 1.059 | 19 | 0.748 |
| 1″ | 33.7 | 1.327 | 22 | 0.866 |
| 1-1/4″ | 42.4 | 1.669 | 25 | 0.984 |
| 1-1/2″ | 48.3 | 1.902 | 29 | 1.142 |
| 2″ | 60.3 | 2.375 | 35 | 1.378 |
| 2-1/2″ | 76.1 | 2.996 | 44 | 1.732 |
| 3″ | 88.9 | 3.5 | 51 | 2.008 |
| 4″ | 114.3 | 4.5 | 64 | 2.52 |
American Threaded 45° Elbow Specification
American Threaded 45° Elbow Advantages
Easy to install
Threaded interface (NPT standard) without welding, through the raw material tape or sealant can realize quick sealing installation, especially suitable for emergency repair and renovation projects.
High pressure resistance
Forging molding process makes the product can withstand up to 6000LB (42MPa) pressure. Even in high temperature situation, it can also withstand relatively strong pressure. For example, 3000LB grade product still maintains 7650PSI pressure capacity under 150°C working condition.
American Threaded 45° Elbow Appliance
Oil and gas systems
Used in wellhead installations to change flow direction, resistant to corrosion by sulfur-containing media, used in conjunction with production tree valves, pressure rated to match API 6A standards.
Fire protection pipeline network
Branch line steering for gas extinguishing systems, 3000LB pressure tested, threaded connections to avoid risk of welding sparks, NFPA fire code compliant.