Butt Weld Fittings
90 Degree Elbow
A 90-degree butt weld (BW) elbow is a pipe fitting used to change the direction of a pipe or pipeline by 90 degrees. It's connected to other pipe sections via butt welding, where the ends of the pipes are directly welded together, creating a strong, continuous flow path.
Here's a more detailed explanation:
Key Features:
- Purpose: To alter the direction of fluid flow by 90 degrees.
- Connection: Joined to other pipe sections using butt welding, a method where the ends of the pipes are directly welded together.
- Material: Can be made from carbon steel, stainless steel, or aluminium.
- Radius: 90-degree elbows come in two main types: long radius (LR) and short radius (SR).
- Long Radius (LR): The radius of the bend is 1.5 times the nominal diameter of the pipe.
- Short Radius (SR): The radius of the bend is equal to the nominal diameter of the pipe.
- Standard: Often manufactured according to standards like ASME B16.9.
Applications:
- Piping Systems: Commonly used in various piping systems, including industrial, commercial, and residential applications.
- Connecting Pipes: Facilitates the connection of pipes that run in different directions.
- Changing Flow Direction: Enables a change in flow direction without introducing significant turbulence.
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Types of Butt Weld Fittings Types |
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Type |
Elbow Fittings
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Long, Short Radius, 3D |
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45 Degrees, 90 Degrees & 180 Degrees |
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Reducer Fittings |
Concentric & Eccentric |
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Tee Fittings |
Equal & Reducing |
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End Cap Fittings |
- |
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Size Range |
1/2'' (15mm), 3/4'' (20mm), 1''(25mm), 1-1/4'' (32mm), 1-1/2'' (40mm), 2'' (50mm), 2-1/2'' (65mm), 3'' (80mm), 3-1/2'' (90mm), 4'' (100mm), 5''(125mm), 6'' (150mm), 8'' (200mm), 10'' (250mm), 12'' (300mm), 14'' (350mm), 16'' (400mm), 18'' (450mm), 20'' (500mm), 22'' (550mm), 24'' (600mm), 26'' (650mm), 28'' (700mm), 30'' (750mm), 32'' (800mm), 34'' (850mm), 36'' (900mm), 48'' (1200mm)
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Wall Thickness |
SCH 10, SCH 20, SCH 30, SCH 40, SCH 60, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160 SCH STD, SCH XS, SCH XXS SCH 10s, SCH 40s, SCH 80s |
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Standard |
ASME B16.9, ASME B16.28, MSS SP-75 |
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Specification |
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Carbon Steel |
ASME/ASTM SA/A234-WPB, WPC |
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High-Yield Carbon Steel |
ASTM A860 WPHY 42/ 46/ 52/ 60/ 65/ 70 |
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Low Temp Carbon Steel |
ASME/ASTM SA/A420 WPL6 |
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Chrome Moly |
ASME/ASTM SA/A234-WP5, WP9, WP11, WP12, WP22, WP91 |
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Stainless Steel |
ASME/ASTM SA/A403WP 304/304L, 316/316L, 309, 304H, 310S, 317, 321, 321H, 347, 347H, 904L |
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Duplex/ Super Duplex |
ASME/ASTM SA/A815 |
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Nickel Alloy |
ASME/ASTM SB366, |
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