What are the advantages of a 180° elbow compared with two 90° elbows?
A 180° elbow can replace the combined use of two 90° elbows, reducing the number of welded joints, thereby lowering the risk of leakage while saving installation space and cost.
180° Elbow
The 180° elbow, also known as a U-type return bend, is used to achieve a 180° reverse return flow of the medium in the pipeline. It can replace the use of two sets of 90° elbows spliced together, effectively reducing the number of welded se
Reference Price
Inquiry
- Complete range of specifications
- Covers LR long-radius and SR short-radius
- DN15-DN1200 full bore and multiple SCH wall thicknesses
- Multiple material options available: carbon steel, stainless steel, alloy steel
- Suitable for high-temperature, high-pressure, and corrosive media working conditions. Adopts mature hot-push and extrusion forming processes
Detailed Introduction
A 180° elbow (U-bend) is a pipe fitting specially designed for pressure piping, achieving a 180° reversal in pipeline direction so that the medium flow is completely redirected. It is available in two curvature types: long radius (LR) and short radius (SR), and supports multiple connection forms including butt welding, socket welding, threaded, and flanged. It can be manufactured in materials such as carbon steel, stainless steel, and alloy steel, and is executed in accordance with national (Chinese), American, and European standards. It is commonly used in U-shaped return layouts such as heat exchangers and boiler circulation pipelines, replacing a combination of two 90° elbows to reduce welded joints and lower the risk of leakage. It is widely applied in engineering fields including petrochemical, power and thermal energy, oil and gas, seawater desalination, and new energy. It supports stock supply, foreign trade export, and non-standard customization.
- Complete range of specifications: DN15-DN1200 full bore, multiple SCH wall thickness grades, covering LR long radius and SR short radius.
- Multiple material options: carbon steel, stainless steel, alloy steel, suitable for high temperature, high pressure, and corrosive media.
- Mature processes: formed using hot pushing, extrusion, and other forming processes, with smooth curvature, uniform wall thickness, and high dimensional accuracy.
- Reduced welds: replaces two 90° elbows, reducing welded joints and lowering the risk of leakage.
- Flexible customization: supports special customization such as reducing, thickened wall, insulated, and wear-resistant types, and can be machined according to drawings.
- Stock and export: regular specifications have a minimum order quantity of 1 piece, support mixed-container loading, and have extensive foreign trade export experience.
| Product Name | 180° Elbow |
| Product Category | Divided into long radius LR and short radius SR / includes butt welding, socket welding, threaded, and flanged connections / adopts hot pushing, extrusion, stamping, and induction bending processes / multiple material options / additionally available in special customized 180° elbows such as reducing, thickened wall, insulated, and wear-resistant types. |
| Customization | Supports customization of LR long-radius and SR short-radius 180° elbows; can produce reducing 180° elbows, thickened high-pressure 180° elbows, wear-resistant linings, plastic-lined anti-corrosion, and pre-insulated 180° elbows. Can process non-standard diameters, special wall thicknesses, and special material pipe fittings according to customer drawings and samples; can produce in accordance with GB, ASME B16.9, EN multi-national standards, and can implement project-specific physical and chemical testing and non-destructive testing requirements. Can be paired with sandblasting, galvanizing, and various anti-corrosion and insulation treatments. The 180° elbow forming process is relatively difficult, and large-diameter non-standard parts require early process evaluation, fully meeting the needs of domestic engineering projects and foreign trade export custom orders. |
| MOQ | For conventional in-stock specifications of 180° elbows, orders can start from 1 piece, suitable for project material replenishment, sample testing, and small-batch engineering procurement. The 180° elbow forming process is complex; special custom models such as large-diameter, thick-wall, alloy steel, reducing, insulated, and wear-resistant types have minimum order quantity requirements for production. Foreign trade orders support mixed container loading with flanges, tees, and various elbows; full container purchase prices |
| Lead Time | For conventional in-stock 180° elbows, delivery is arranged within 1-3 working days after order confirmation. For ordinary standard non-standard custom products, the production cycle is 7-15 working days; for custom pipe fittings with complex 180° elbow forming processes, such as large-diameter, thick-wall, alloy steel, wear-resistant, pre-insulated, and special anti-corrosion treatments, the delivery cycle is 15-35 working days. Foreign trade orders need to reserve loading |
| Packaging | The 180° U-shaped elbow has a special shape; focus on protecting the welding bevels at both ends to prevent collision damage. For small-diameter pipe fittings, use rust-proof and moisture-proof paper to wrap the bevels, then place them in plywood wooden crates with fixed positioning to avoid shaking and collision during transport. Large-diameter 180° elbows are supported by wooden pallet bases, wrapped externally with rain-proof woven fabric, and the U-shaped inner cavity is properly protected and isolated to prevent compression deformation. For export orders, the boxes are printed with shipping marks indicating angle, curvature, DN specification, material, batch number, and quantity; desiccant is placed inside the box to resist marine salt spray corrosion. Wooden crates can be provided with fumigation treatment to meet the customs quarantine requirements of some countries, suitable for domestic logistics and container sea freight export. |
| Reference Price | Inquiry |
| Curvature Radius | Long radius (LR), short radius (SR) |
Applications
- Heat exchangers, boiler circulation piping: used for U-shaped return layouts to achieve reverse flow of the medium and save space.
- Petrochemical, electric power and thermal energy: occasions where 180° return direction changes are required in process pipelines.
- Seawater desalination, new energy projects: corrosion-resistant materials are optional to meet special working conditions.
- Rehabilitation of aging pipelines: replace two sets of 90° elbows to reduce weld points and improve safety.
- Foreign trade procurement: supporting export project ancillary supplies, offering multilingual services, and manufacturing in accordance with international standards.
Overview
The 180° elbow, also known as the U-type return bend, is a dedicated pipe fitting used in pressure piping to achieve a 180° reverse turn of the medium. It can replace the combined use of two 90° elbows, reducing the number of welded joints and lowering the risk of leakage. The product is available in two curvature types: long radius (LR) and short radius (SR), and supports various connection forms such as butt welding, socket welding, threaded, and flanged. It can be manufactured from multiple materials including carbon steel, stainless steel, and alloy steel, and is produced in accordance with national standards, American standards, European standards, and others. It is widely used in projects such as petrochemical, electric power and thermal energy, oil and gas, seawater desalination, and new energy, and is especially suitable for applications requiring U-shaped return layouts such as heat exchangers and boiler circulation pipelines.
Key Features
Our 180° elbows come in a complete range of specifications, covering the full bore range of DN15-DN1200 as well as multiple SCH wall thickness grades. We offer various materials including carbon steel, stainless steel, and alloy steel, which can accommodate working conditions involving high temperature, high pressure, and corrosive media. Mature forming processes such as thermal pushing and extrusion are adopted, resulting in smooth fitting curvature, uniform wall thickness, and high dimensional accuracy. Both LR long radius and SR short radius are available to meet different spatial requirements. In addition, we provide special customization services such as reducing, thickened, insulated, and wear-resistant types, and can produce in accordance with standards including GB, ASME B16.9, and EN, while executing project-specific inspection requirements.
Applications
180° elbows are widely used in pressure piping projects such as petrochemical, oil and gas transmission, thermal power generation, coal chemical, seawater desalination, new energy projects, municipal fire protection, water supply and drainage, and sewage treatment. They are commonly used for process pipeline layout adjustment, new construction of plant-area pipeline networks, and rehabilitation and repair of aging pipelines, and can adapt to above-ground process pipelines, buried pipeline networks, and inlet and outlet connections of equipment units. They are capable of meeting diverse working conditions such as high temperature, high pressure, and certain corrosive media.
Specifications
The product is available in two curvature types: long radius (LR) and short radius (SR), and supports butt welding, socket welding, threaded, and flanged connections. The bore range covers DN15-DN1200, with multiple SCH wall thickness options available. Materials include carbon steel, stainless steel, alloy steel, and others. Applicable standards include national standards, American standards (ASME B16.9), European standards, and others. For specific parameters such as material, wall thickness, and standards, please contact us for confirmation so that we can provide an accurate configuration.
Procurement & Delivery
For 180° elbows in regular stock specifications, orders starting from 1 piece are accepted, suitable for project material replenishment, sample testing, and small-batch engineering procurement. Special customized models such as large-diameter, thick-wall, alloy steel, reducing, insulated, and wear-resistant types have minimum order quantity requirements for production; please contact us for confirmation. Regular in-stock items are shipped within 1-3 working days after order confirmation; ordinary non-standard customized items within 7-15 working days; complex customizations such as large-diameter and thick-wall types within 15-35 working days. Foreign trade orders support mixed container loading, and full-container purchases offer better pricing. For packaging, small-diameter fittings have their bevel ends wrapped in anti-rust and moisture-proof paper and are packed in plywood wooden crates; large-diameter fittings are supported on wooden pallet bases, wrapped externally with rainproof woven fabric, and the U-shaped inner cavity is properly protected. For export orders, shipping marks are printed on the cartons, desiccant is placed inside, and the wooden crates can be provided with fumigation treatment.
Service & Support
We provide professional technical consultation for product selection, assisting customers in confirming parameters such as curvature, bore, wall thickness, and material of the 180° elbow based on working conditions, and offering selection recommendations for special working conditions such as heat exchangers and circulation pipelines. Products undergo dimensional and visual inspection before leaving the factory. If any product body quality issue caused by non-human factors occurs, after-sales handling is provided in accordance with the contract terms. Technical documents such as MTR material certificates, non-destructive testing reports, and complete export documentation sets can be provided upon request. Order logistics status is tracked throughout, and for foreign trade orders we assist in verifying packing lists and product shipping marks. Online technical support is available for questions regarding product use, storage, and installation.
FAQ
How should long radius (LR) and short radius (SR) be selected?
A long radius elbow has a larger bending radius and lower fluid resistance, making it suitable for scenarios sensitive to pressure loss, such as heat exchanger circulation lines; a short radius elbow occupies less space and is suitable for space-constrained applications. The specific choice should be determined based on pipeline design and working conditions.
What materials and standards are supported?
We can produce carbon steel, stainless steel, alloy steel, and other materials, and we implement national standards, American standards (such as ASME B16.9), European standards, and others. Specific materials and standards can be customized according to project requirements; please contact us to confirm.
What is the minimum order quantity? What is the delivery time?
For regular stock specifications, an order of 1 piece is acceptable, and shipment will be made within 1-3 working days after order confirmation. Non-standard customized products have minimum order requirements, and the delivery time is 7-35 working days depending on complexity. Please contact us for confirmation.
Can you provide material certificates and inspection reports?
Yes. We can provide MTR material certificates, non-destructive testing reports, and other documents as needed, and we also support third-party inspection.
Submit Inquiry
Please fill in the following information, and we will contact you as soon as possible to provide product solutions or quotes based on your needs.