Short & Long Radius 180 Degree Elbow Fittings: ASME/ANSI B16.9, B16.28, MSS-SP-43

180 Degree Elbow ASME B16.9
Torrent Alloys
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BW 180° Elbow Specifications

  • Dimensions:

    ASME/ANSI B16.9, ASME B16.28, MSS-SP-43.

  • Size:

    1/2"NB TO 48"NB IN.

  • Type:

    Seamless and Welded.

  • Thickness:

    Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS.

  • Form:

    180 Degree Elbow, 180° Long Radius Elbow -LR Elbow, 180° Short Radius Elbow -SR Elbow

  • Materials:

    Stainless Steel, Carbon Steel, Alloy Steel, Super Duplex, Duplex Steel, High Nickel Alloys, Copper Nickel.

ISO Certified manufacturer of Top Quality Buttweld 180Degree Elbow in size range 1/2″ to 48″ inch and Thickness in Sch 5S to XXS.

A Buttweld 180-degree elbow is a crucial component in the piping systems used across various industries, including oil and gas, petrochemical, and power generation. This type of elbow is designed to facilitate a complete change in the flow direction, allowing the pipeline to execute a 180-degree turn. These elbows manufactured by us ensures a strong and leak-proof connection when welded to the adjoining pipes, providing structural integrity and resistance to high pressure and temperature conditions.

The Buttweld 180-degree elbow is typically fabricated from high-grade materials such as stainless steel, carbon steel, alloy steel, or high nickel alloys, chosen based on the specific requirements of the application. These materials offer excellent corrosion resistance, mechanical strength, and durability. The elbows are manufactured according to standards like ASME B16.9, MSS, DIN, EN, JIS, BSI, ensuring uniformity in dimensions, wall thickness, and tolerances. The design includes a smooth inner surface to minimize friction losses and turbulence, which is critical in maintaining efficient flow within the pipeline.

This type of elbow is often used in applications where space constraints necessitate a sharp turn, or in heat exchanger tubing where return bends are common. The installation of a Buttweld 180-degree elbow involves precise welding techniques to ensure a seamless and robust joint. Proper alignment and welding practices are essential to prevent any potential weak points that could lead to leaks or failures under high stress. The buttweld connection, once completed, becomes as strong as the adjoining pipes, offering a reliable solution for complex piping configurations.

Regular maintenance and inspection of Buttweld 180-degree elbows are crucial to ensure the longevity and safety of the piping system. Inspection techniques such as radiographic testing, ultrasonic testing, and hydrostatic testing are employed to detect any defects or degradation in the weld joints and material. Proper maintenance practices, including periodic cleaning and protective coatings, can significantly extend the service life of these elbows, ensuring continuous and efficient operation of the pipeline.

ASME B16.9 / B16.28 Standards
MSS SP-43 Standards
DIN Standards
EN Standards
JIS Standards
BS Standards

ASME B16.9 180 Degree Elbow Dimensions

ASME B16.9 180 Degree Elbow LR/SR Dimensions
NPS O.D.
D
180° LR 180° SR
Center to Center
O
Back to
Face
K
Center to Center
O
Back to
Face
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

Note: Wall thickness (t) must be specified by customer. Dimensions are in millimeters unless otherwise indicated.

Dimensional Tolerances of ASME B16.9 180deg Elbow LR & SR

Nominal Pipe Size 1/2 to 2.1/2 3 to 3.1/2 4
Outside Diameter
at 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 Diameter
at 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

APPLICATIONS INDUSTRIES

Buttweld 180-degree long and short radius elbows are vital in various industries for managing fluid flow. In the oil and gas sector, they redirect pipelines around obstacles while maintaining optimal flow dynamics. Chemical processing plants use these elbows to handle corrosive substances, ensuring smooth transitions and reducing pressure loss. In power generation, they efficiently route steam and cooling water, minimizing pressure drops and enhancing overall operational efficiency.

Oil and Gas Industry
Chemical and Petrochemical Industry
Power Generation
Water Treatment
Food and Beverage Industry
Pharmaceutical Industry
Pulp and Paper Industry
Shipbuilding and Marine Industry
HVAC - Heating, Ventilation, and Air Conditioning