Elbow
An elbow is an indispensable pipe fitting in pressure piping systems. Its main function is to change the direction of the medium conveyed in the pipeline, enabling pipeline turning, detouring, and avoiding equipment and building structures. The product range covers multiple angles (90°, 45°, 180°), curvature radii (long radius, short radius), and connection types (butt welding, threaded, etc.). Materials include carbon steel, stainless steel, and alloy steel, and the products comply with multiple standards such as Chinese national standards, American standards, and European standards. We adopt mature forming processes such as hot pushing and extrusion to ensure uniform wall thickness and high dimensional accuracy, and non-destructive testing can be performed. In addition to conventional elbows, special types such as reducing elbows, wear-resistant elbows, and insulated elbows can also be customized. They are widely used in projects such as petrochemical, long-distance oil and gas transmission, thermal power and electric power, new energy, municipal fire protection, water supply and drainage, and sewage treatment. We support stock supply and foreign trade export customization, provide material certificates and third-party inspection reports, and offer reliable products and services to customers such as EPC general contractors, construction units, and distributors.
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90° Elbow
A 90° elbow is a key pipe fitting used in pressure piping systems to achieve a 90° directional change in the pipeline. It is available in two mainstream curvature types: long radius and short radius, and supports multiple connection methods such as butt welding, socket welding, and threading. Materials cover carbon steel, stainless steel, and alloy steel. It is suitable for engineering projects in chemical, power, oil and gas, municipal, and wastewater treatment industries, and is a commonly used pipe fitting for EPC general contracting, pipeline construction, industrial and mining enterprises, and foreign trade procurement. We provide two curvature options—long radius (LR, R=1.5D) and short radius (SR, R=1.0D)—as well as multiple connection forms including butt welding, socket welding, threading, and flanging, to meet different space and working condition requirements. Materials cover carbon steel, stainless steel, and alloy steel, with support for non-standard customization and production according to standards such as GB, ASME, and EN. The products are manufactured using thermal pushing and extrusion forming processes, ensuring uniform wall thickness and reliable quality. We provide comprehensive pre-sales selection guidance, after-sales technical support, and logistics tracking services to ensure smooth procurement and delivery.
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45° Elbow
A 45° elbow is a key fitting in pressure piping systems, used to change the pipeline direction by 45°. Compared with a 90° elbow, it offers lower fluid resistance and helps optimize pipeline layout. The product is available in two curvature types: long radius (LR) and short radius (SR), and supports butt weld, socket weld, threaded, flanged and other connection forms. Materials cover carbon steel, stainless steel, alloy steel, etc., and the products can be manufactured to Chinese national standards, American standards, and European standards. They are widely used in petrochemical, thermal power, oil and gas transmission, new energy, municipal fire protection, sewage treatment and other projects, and are suitable for new construction projects, pipeline renovation, and equipment connection scenarios. We provide stock supply and customized services, support foreign trade export, and welcome you to contact us to confirm specific requirements.
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180° Elbow
180° elbow (U-bend) is a pressure piping fitting that achieves a 180° return reversal of the pipeline, completely reversing the direction of the medium flow. It is available in two curvature types: long radius (LR) and short radius (SR), and supports multiple connection forms including butt weld, socket weld, threaded, and flanged. It can be manufactured in carbon steel, stainless steel, alloy steel, and other materials, and is executed in accordance with national standards (GB), American standards (ASTM/ASME), and European standards (EN). It is commonly used in U-shaped return layouts such as heat exchangers and boiler circulation pipelines, replacing the combination of two 90° elbows to reduce welded joints and lower the risk of leakage. It is widely applied in petrochemical, power and thermal, oil and gas, seawater desalination, new energy, and other engineering projects. It supports stock supply, foreign trade export, and non-standard customization.
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60° and 30° non-standard angle elbows
60° and 30° non-standard angle elbows are non-standard custom pipeline directional fittings, used to achieve 30° and 60° special-angle turns in pipelines, adapting to special working conditions such as special pipeline layouts, equipment connection, and space avoidance, making up for scenarios where standard 45°/90° elbows cannot match the angle. They can be divided into long radius (LR) and short radius (SR) curvatures, support multiple connection forms such as butt welding, socket welding, threaded, and flanged, cover various materials including carbon steel, stainless steel, and alloy steel, and are custom-produced according to Chinese national standards, American standards, European standards, or customer drawings. The fittings are formed using hot pushing, extrusion, and stamping processes, ensuring smooth arcs and uniform wall thickness, reducing medium flow resistance. They are widely used in pressure pipeline projects such as petrochemical, power and thermal energy, new energy, seawater desalination, and municipal engineering, mostly for non-standard process pipeline renovation and special equipment interface connection. All are custom products, not regularly stocked, and support custom processing for foreign trade export drawings.
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Long Radius Elbow LR (R=1.5D)
A long radius elbow LR (R=1.5D) refers to an elbow whose bending radius is 1.5 times the nominal diameter of the pipe, and it is the most widely used standard directional pipe fitting in pressure piping engineering. It can achieve direction changes at multiple angles such as 30°, 45°, 60°, 90°, and 180°, and is available in various connection forms including butt welding, socket welding, threaded, and flanged; it covers materials such as carbon steel, stainless steel, and alloy steel, and complies with mainstream domestic and international standards including GB/T12459, GB/T13401, and ASME B16.9. The fitting is formed through hot pushing and extrusion, with smooth and even transition arcs, uniform wall thickness, low fluid resistance, and low medium pressure drop, effectively reducing erosion and wear of piping media. It is widely used in various high-temperature and high-pressure pressure piping systems in petrochemical, electric power and thermal energy, coal chemical, seawater desalination, new energy, municipal fire protection, and wastewater treatment industries. Most conventional angles are available in stock inventory, and non-standard customization such as reducing, thickened wall, anti-corrosion, and insulation is also supported, serving both domestic engineering project supply and foreign trade export orders.
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Short radius elbow SR (R=1.0D)
Short radius elbow SR (R=1.0D) is a compact pipe fitting launched by the Guojie brand, with a bending radius of only 1 times the pipe nominal diameter. Compared with long radius elbows, it saves more space and is suitable for secondary pipelines with limited installation space. The product complies with GB/T12459, GB/T13401 and ASME B16.9 standards, and can also be customized according to ASME B16.28. It provides standard angles of 90°, 45°, and 180°, while 30° and 60° are non-standard custom options. Connection forms include butt welding, socket welding, threaded, and flanged. Forming processes include hot pushing, extrusion, stamping, and induction bending. A wide range of materials is available, and customization is supported for reducing size, thickened wall, thermal insulation, wear resistance, and anti-corrosion. Fluid resistance is relatively high, so please use with caution for high-pressure and high-speed main pipelines. We provide selection guidance, support non-destructive testing, and standard angles are available in stock. Welcome to contact us to confirm the specific configuration.
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Butt Welding Elbow
Butt-welding elbows are the mainstream direction-changing pipe fittings in pressure piping systems. Both ends are connected to the pipeline by beveled butt welding, and the pipeline is connected through the weld seam. The products can be manufactured in two curvature types: long radius LR (R=1.5D) and short radius SR (R=1.0D), covering multiple bending angles of 30°, 45°, 60°, 90°, and 180°. Materials include carbon steel, stainless steel, and alloy steel, and the products comply with domestic and international standards such as GB/T12459, GB/T13401, and ASME B16.9. The hot push and extrusion forming processes are adopted, resulting in uniform wall thickness of the fittings, regular bevel machining, high overall strength after welding, good sealing performance, the ability to withstand high-temperature and high-pressure working conditions, and smooth fluid flow. They are widely used in various pressure piping projects such as petrochemical, power and thermal energy, coal chemical, new energy, seawater desalination, and wastewater treatment. Conventional 90°, 45°, and 180° specifications are regularly kept in stock; 30° and 60° small-angle, reducing, thickened, anti-corrosion, and insulation types support non-standard customization, and can simultaneously supply domestic engineering projects and export orders.
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Threaded (screw) elbow
Threaded (screw) elbows are forged pipe fittings under the Guojie brand, which achieve pipe direction changes through threads at both ends, requiring no welding and making disassembly, inspection, and maintenance very convenient. The products are mainly available in 90° and 45° short-radius versions, and long-radius as well as non-standard angles of 30°/60° can also be customized. Thread types cover NPT, BSPT, BSPP, G, etc., to suit different piping standards. A variety of materials are available, and custom requirements such as reducing sizes, thickened walls, and internal/external threads are supported. The products comply with GB/T14383 and ASME B16.11 standards, feature precision thread machining and dense forged structures, and are suitable for small-diameter medium/low-pressure auxiliary pipelines, instrument lines, fire protection, HVAC, and other applications. We offer both stock and custom services with flexible delivery times; please feel free to contact us to confirm specific configurations.
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