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Elbow

LR & SR Pipe Elbows | 45°/90°/180° | Seamless & Welded Industrial Fittings

Pipe elbow is standard pipe fitting to adjust pipeline flow direction, supplied in long radius and short radius, 45°,90°,180° angles. We produce carbon steel elbow for heavy industrial piping and stainless steel elbow for corrosive medium. Seamless and butt weld elbow meet ASME B16.9 standards for high pressure & temperature projects.

As professional pipe elbow manufacturer, we support custom size, wall thickness and connection types including threaded & socket weld.

Core Advantages of Pengrun Elbow

LR/SR & multi-angle options

Smooth inner wall, low flow loss

Seamless/welded for all pressure ratings

Multiple Materials Options

Multiple connection ends available

Meets ASME B16.9 standard

Categoría de productos
Industries
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    Codo de 45 grados roscado / atornillado

    Codo de 90 grados roscado / atornillado

    Socket Weld 45 Deg Elbow

    Socket Weld 90 Deg Elbow

    Codo LR (codo de radio largo)

    Codo SR (codo de radio corto)

    Codo de 180 grados

    Codo de 90 grados

    45Deg Elbow

    Main Classification

    By radius：Long Radius Elbow (1.5D), Short Radius Elbow (1D)

    By angle：45°,90°,180° return bend

    By craft：Seamless elbow, welded elbow

    By connection：Butt weld elbow, threaded elbow, socket weld elbow

    Application Limits

    Short radius elbows for limited space; long radius for low turbulence long-distance pipelines. Not for ultra-small bore explosion-proof piping (choose threaded elbow separately).

    Comparison Table：Long Radius VS Short Radius Elbow

    Item Long Radius Elbow Short Radius Elbow
    Radius 1.5D 1D
    Flow loss Low, smooth flow Higher flow resistance
    Installation space Require larger space Compact narrow layout
    Pressure adaptability All pressure classes Low & medium pressure only
    Common usage Long-distance main pipelines Indoor compact branch pipes

    Comparison Table：45° / 90° / 180° Elbow

    Item 45° Elbow 90° Elbow 180° Return Bend
    Flow deflection angle 45 degrees 90 degrees 180 degrees, reverse flow
    Flow resistance Minimal Medio Highest resistance
    Typical layout purpose Gentle pipeline turn, long distance main pipe Vertical/horizontal right-angle steering U-shaped loop, heat exchange circulation
    Common usage scenario Long oil/gas trunk lines Factory general process piping Boiler, cooling circulation system
    Pressure recommendation All pressure grades Full range pressure Low & medium pressure circulation lines

    FAQs

    What’s the difference between long radius and short radius elbows?

    Long radius (1.5D) has low flow resistance for main pipelines; short radius (1D) saves space for compact branch piping.

    Which elbow angle is most widely used?

    90° elbow is standard for vertical and horizontal pipe turns; 45° for gentle long-distance routing, 180° for circulating loops.

    What connection types can elbows be made with?

    Butt weld, threaded and socket weld ends to match different piping systems.

    What specifications can you customize?

    Custom angles, wall thickness, sizes DN15–DN3000 and special schedules are supported.

    Are seamless elbows suitable for high-pressure pipelines?

    Yes, seamless elbows feature uniform wall thickness and perform well under high pressure.

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