Long Radius Elbows - Pumps, Valves, Piping and Fittings
Long-radius elbows are pipe fittings with a centerline radius typically equal to 1.5 times the nominal pipe diameter. In marine systems, they change piping direction while reducing pressure loss, turbulence, erosion, and stress compared with short-radius elbows.
ProShipWorks provides end-to-end support to source and supply Long Radius Elbows for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Long Radius Elbows |
|---|---|
| Product Category | Pumps, Valves, Piping and Fittings |
| Product Reference | 618 |
| Brands / Manufacturers | Bonney Forge, Galperti Engineering, Erne Fittings |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Typically 1.5D centerline radius |
| 2. Butt-weld, socket-weld, threaded, or flanged ends |
| 3. Available in carbon steel, stainless steel, duplex, copper-nickel, and alloy materials |
| 4. Suitable for liquid, gas, seawater, fuel, ballast, cooling, and fire-main piping |
| 5. Manufactured in 45-degree and 90-degree configurations |
Applications of Long Radius Elbows
| Application |
|---|
| 1. Seawater cooling, ballast, bilge, and fire-main piping |
| 2. Fuel oil, lubricating oil, compressed-air, and freshwater systems |
| 3. Engine-room, cargo, deck, and shipyard piping installations |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| ASME B16.9 Long-Radius Butt-Weld Elbow, 90 Degree | Various approved manufacturers |
| ASME B16.9 Long-Radius Butt-Weld Elbow, 45 Degree | Various approved manufacturers |
| EN 10253-2 Type 3D Long-Radius Elbow | Various approved manufacturers |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| ASME B16.9 Long-Radius Elbow | Centerline radius | 1.5 x nominal pipe diameter | D |
| ASME B16.9 Long-Radius Elbow | Common bend angles | 45 and 90 | degrees |
| ASME B16.9 Long-Radius Elbow | End connection | Butt weld | — |
| ASME B16.9 Long-Radius Elbow | Size range | Manufacturer and schedule dependent | — |
| ASME B16.9 Long-Radius Elbow | Material | Carbon steel, stainless steel, duplex, copper-nickel, or alloy steel | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Common dimensional and manufacturing standards include ASME B16.9, ASME B16.25, MSS SP-75, EN 10253, and JIS B2313. Material certification may be supplied to EN 10204 3.1 or 3.2 when specified. Applicable requirements depend on material, pressure class, and vessel piping rules. |
|---|---|
| Class Approval | DNV, ABS, Lloyd's Register, Bureau Veritas, and ClassNK may accept or approve these fittings when included in an approved marine piping system and supported by required material certificates, testing, traceability, and project documentation. Approval is not automatic for every fitting. |
Installation, Maintenance & Safety Information
| Installation Notes | Verify nominal size, wall thickness or schedule, material, bend angle, pressure rating, and applicable class requirements before installation. Align and support the pipe without forcing the elbow into position. Use qualified welding procedures and inspect welds as specified. |
|---|---|
| Maintenance Tips | Inspect for corrosion, erosion, leakage, coating damage, vibration, and inadequate support during routine piping surveys. Check seawater-service fittings for dezincification or galvanic corrosion where applicable. Replace fittings showing cracking, excessive wall loss, or deformation. |
| Safety Notes | Isolate, depressurize, drain, and ventilate the piping system before removal or welding. Confirm the line is free from hazardous fluids and gases. Use approved lifting, hot-work, welding, and personal protective equipment procedures. |
Request a Quote for Long Radius Elbows
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- Required quantity
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