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Gimbal/Double Gimbal

METALLIC GIMBAL EXPANSION JOINT

A bellows expansion joint equipped with two pairs of hinges connected to a floating gimbal ring, designed to absorb angular movements in multiple planes while restraining pressure thrust.

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Gimbal

expansion joint

The Metallic Gimbal Expansion Joint consists of a single bellows element attached to a gimbal ring assembly with dual hinge sets. This construction allows angular rotation in multiple planes simultaneously, making it well-suited for piping systems with complex directional changes. Gimbal joints are designed to resist pressure thrust loads, while also supporting dead weight and torsional stability. They are supplied with weld ends, fixed or loose flanges, with or without internal sleeves.

  • Size Range (DN)

    DN50 – DN5000

  • Materials

    SS304 / SS316L / SS321 / Inconel / Hastelloy / others on request

  • Movements

    Angular (multi plane)

  • Pressure Rating

    Up to 100 bar (higher on request)

  • Temperature Range

    –196°C to +800°C (depending on material)

Gimbal

expansion joint

The Metallic Gimbal Expansion Joint consists of a single bellows element attached to a gimbal ring assembly with dual hinge sets. This construction allows angular rotation in multiple planes simultaneously, making it well-suited for piping systems with complex directional changes. Gimbal joints are designed to resist pressure thrust loads, while also supporting dead weight and torsional stability. They are supplied with weld ends, fixed or loose flanges, with or without internal sleeves.

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  • Size Range (DN)

    DN50 – DN5000

  • Materials

    SS304 / SS316L / SS321 / Inconel / Hastelloy / others on request

  • Movements

    Angular (multi plane)

  • Pressure Rating

    Up to 100 bar (higher on request)

  • Temperature Range

    –196°C to +800°C (depending on material)

Typical use case: Designed for complex piping networks with multi-directional angular movements, including engine exhausts, hot piping in steel mills, and heavy-duty industrial plants where torsion and thrust must be restrained.

Other applications include:

  • Power generation and petrochemical plants
  • Steel mills and cement plants
  • Shipbuilding and marine exhaust systems
  • Water treatment and paper industry piping
  • Absorbs angular movements in multiple planes, or combinations of rotations
  • More flexible than hinged expansion joints
  • Eliminates the need for main anchors by resisting pressure thrust
  • Supports dead weight of intermediate piping and connected equipment
  • Prevents torsion on bellows elements, enhancing fatigue life
  • Multilayer bellows for low spring rate and long service life
  • Resistant to corrosion, high temperature, and pressure environments
  • Maintenance-free operation with reliable performance in heavy-duty systems
gimbal
External Cover / shroud

shields bellows from external damage

Flow Liner / Inner sleeve

protects bellows from turbulent or abrasive flow media

Hinge Plates & Pins

control angular rotation in multiple planes

Gimbal Ring Assembly

dual pivoted rings at right angles to allow multiplane flexibility

Shipping Rods

secure the joint during handling and transport

End Connections

weld ends, fixed flanges, or loose flanges