Butt Weld Fittings
Butt Weld Fittings are connected to pipes via butt welding (typically full penetration welding), ensuring a strong joint. Available in various types, such as elbows, tees, reducers, and caps, to alter the direction, branch, diameter, or end of pipelines.
High Quality Butt Weld Fittings We Can Supply
SSM manufactures butt weld fittings used for connecting pipes through butt welding. These fittings are typically used to change the direction, branch, diameter, or termination of pipelines.
Butt weld fittings offer higher strength and durability, can withstand higher pressure and temperature, and have a smooth internal surface that reduces fluid resistance and turbulence. Butt weld connections provide a permanent joint, ensuring the integrity and stability of the piping system. The types of butt weld fittings we offer include the following:
- Types : 45-deg /90-deg Long Radius Elbows / 3D Elbows / Straight Tees / Straight Crosses / Reducing Outlet Tees / Reducing Outlet Crosses / Caps / Long Radius Reducing Elbows / Long Radius Returns / Short Radius Elbows / Short Radius 180-deg Returns / Lap Joint Stub Ends / Concentric Reducers / Eccentric Reducers
- Size: 1/8″ – 48″
- Pressure: Classes 150, 300, 600, 900, 1500,and 2500.
- Producing Standard: ASME B16.19
- Materials: ASTM A234 , ASTM A403 , ASTM A420, ASTM A81 5 , ASTM B361 , ASTM B363 , ASTM B366
Common Types We Can Manufacture
We can manufacture according to ASME B16.9 standards, or provide customized products for you.
90-Degree Long Radius Elbows
Threaded 90-degree Elbow changes the direction of flow in a threaded pipe system at a 90-degree angle, commonly used to connect two pipes perpendicularly.
Size: 1/2 – 48″
45-deg Long Radius Elbows
45-deg long radius elbows are used to change the direction of the pipeline by 45 degrees. The “long radius” design has a centerline radius that is 1.5 times the diameter of the pipe, providing smoother flow and minimizing pressure loss.
Size: 1/2 – 48″
Straight Crosses
Straight crosses are four-way fittings that allow four pipes to connect, with all outlets having the same diameter, and are used in applications where pipelines need to branch in four directions.
Size: 1/2 – 48″
Straight Tees
Straight tees are fittings that allow three pipes to connect at a 90-degree angle, with all three outlets having the same diameter, and are used to split or combine fluid flow in a pipeline.
Size: 1/2 – 48″
Reducing Outlet Tees
Reducing outlet tees are similar to straight tees but have one outlet of a smaller diameter than the main pipeline, and are used to reduce the flow from the main pipe into a smaller branch pipe.
Size: 1/2 – 48″
Reducing Outlet Crosses
Reducing outlet crosses are four-way fittings with one or more outlets of a smaller diameter than the others, and they are used where the flow needs to be split into different sizes or directions in a piping system.
Size: 1/2 – 48″
3D Elbows
3D elbows have a centerline radius three times the diameter of the pipe (3D) and are used to provide even less flow resistance and smoother directional changes compared to long radius elbows.
Size: 1/2 – 48″
Caps
Caps are fittings used to close the end of a pipeline, preventing the flow of fluid, and are often used in applications where a future expansion or connection is anticipated.
Size: 1/2 – 48″
Long Radius Reducing Elbows
Long radius reducing elbows are used to change the direction of the pipeline while also reducing the pipe diameter. The long radius design, with a centerline radius 1.5 times the diameter of the larger pipe, ensures a smooth flow transition and minimizes pressure loss.
Size: 1/2 – 24″
Long Radius Returns
Long radius returns are 180-degree elbows that redirect the flow in the opposite direction. The long radius design, with a centerline radius 1.5 times the pipe diameter, reduces flow resistance and ensures a gradual change in direction.
Size: 1/2 – 24″
Short Radius Elbows
Short radius elbows are used to change the direction of the pipeline by 90 degrees, with a centerline radius equal to the diameter of the pipe. They are ideal for tight spaces where installation is restricted, but they create more turbulence and higher pressure drop compared to long radius elbows.
Size: 1/2 – 24″
Short Radius 180-Degree Returns
Short radius 180-degree returns are used to reverse the flow direction in a pipeline within a limited space. With a centerline radius equal to the pipe diameter, they allow for a quick directional change but increase turbulence and pressure drop.
Size: 1/2 – 24″
Lap Joint Stub Ends
Lap joint stub ends are fittings used with lap joint flanges to connect pipes. They consist of a short piece of pipe with a flared end that fits over the pipe and a lap joint flange. This allows for easy alignment and rotation of the flange, making them suitable for applications where frequent disassembly is required.
Size: 1/2 – 24″
Concentric Reducers
Concentric reducers are fittings used to connect two pipes of different diameters while maintaining the same centerline. The reducer’s conical shape ensures a smooth flow transition, reducing turbulence and minimizing the risk of cavitation.
Size: 1/2 – 24″
Eccentric Reducers
Eccentric reducers are fittings used to connect two pipes of different diameters while maintaining one side of the pipe level. This design is useful in applications where the flow needs to be maintained at a constant elevation, such as when avoiding air pockets or ensuring a smooth drainage system.
Size: 1/2 – 24″
Application of Butt Weld Fittings
SSM manufactures threaded fittings , which are used across various industries and applications to connect, redirect, or control the flow of fluids or gases in piping systems.
- Oil and Gas Industry
- Petrochemical and Chemical Industries
- Power Generation
- Water Treatment Plants
- Pharmaceutical and Food Processing Industries
- Marine and Shipbuilding
- HVAC Systems
- Mining and Metal Processing
- Automotive and Aerospace Industries
- Fire Protection Systems
Advantages of Butt Weld Fittings
- High strength and durability: Welded joints are strong and suitable for high-pressure and high-temperature applications, ensuring the safety and stability of the pipeline system.
- Leak-free connection: Welding reduces the possibility of leakage and is suitable for conveying harmful, flammable, explosive, or highly corrosive fluids.
- Low fluid resistance: Smooth welds reduce turbulence and pressure loss of internal fluids, improving fluid conveying efficiency.
- Lightweight: Butt-welded pipe fittings are lighter in weight compared to other types of connections (such as flange connections), helping reduce the total weight of the pipeline system.
- Good integrity: They provide a reliable and well-integrated connection method, reducing the need for later maintenance and inspection.
Disadvantages of Butt Weld Fittings
SSM reminds you that while butt weld fittings offer many advantages in specific applications, they also have some drawbacks. When selecting our fittings, please consider the following issues:
- Complex installation: Professional welding equipment and skills are necessary for installation, and the quality of the welding depends on the operator’s technical expertise.
- Lengthy installation time: Butt welding connections require more time for welding and inspection compared to flange connections.
- Non-removable: Butt welding pipe connections are permanent and not easily disassembled and reinstalled.
- High cost: The initial installation cost includes welding materials, equipment, and labor expenses.
- Complex maintenance: Inspection and maintenance after welding are more complicated, especially when the weld may be aged or corroded after long-term use.
The Materials of Butt Weld Fittings We Can Provide
SSM’s butt weld fittings are manufactured from controllable raw materials with strict quality control. We commonly supply fittings made from the following materials:
Carbon Steel Butt Weld Fittings
SSM commonly provides carbon steel butt weld fittings, which are made from carbon steel, which contains up to 2.1% carbon by weight. It is known for its high strength, toughness, and durability, making it suitable for applications requiring resistance to wear and impact.
ASTM Grades: ASTM A234 WPB, ASTM A420 WPL6
Stainless Steel Butt Weld Fittings
SSM commonly provides stainless steel butt weld fittings, which are made from stainless steel, which contains at least 10.5% chromium, providing excellent corrosion resistance, high strength, and good ductility. It is often used in applications requiring hygiene and resistance to rust.
ASTM Grades: ASTM A403 WP304 / WP304L, WP316 / WP316L, WP321, WP347
Alloy Steel Butt Weld Fittings
Alloy Steel Butt Weld Fittings are made from alloy steel, which is alloyed with various elements like chromium, molybdenum, and vanadium to improve strength, toughness, and resistance to corrosion and wear. Alloy steel is often used in high-temperature and high-pressure environments.
ASTM Grades: ASTM A234 WP5 / WP9 / WP11 / WP22 / WP91
Nickel Alloys Butt Weld Fittings
Alloy Steel Butt Weld Fittings are made from nickel-based alloys, known for their excellent resistance to corrosion, high temperatures, and extreme environments. These fittings are commonly used in applications where corrosion resistance and high strength are crucial.
ASTM Grades: ASTM B366 WPNiCu (Monel 400), WPN (Inconel 600, 625), WPNC (Incoloy 800, 825), WP (Hastelloy C276, C22)
One-Stop Pipe Fittings Provider for All Your Needs
SSM has significant product advantages in manufacturing Butt Weld Fittings . Whether it’s quality or price, we will meet your needs.
More Information About Butt Weld Fittings
Our forged butt weld fittings primarily adhere to the ASME B16.9 standard. For more information about B16.9, you can read this article, Mastering ASME B16.9: A Complete Overview of Butt-Weld Fittings
Dimensions of Butt Weld Fittings
Why Can SSM Provide You with High-Quality Butt Weld Fittings?
SSM provides high-quality butt weld fittings by sourcing controlled raw materials, adhering to strict quality control measures, employing expert manufacturing techniques, and complying with industry standards like ASME B16.9 and ASTM specifications. We also offer customized solutions to meet specific needs, ensuring our fittings deliver reliable performance across various industrial applications.
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