Gimbal Expansion Joints are made of one single or double bellows element designed to allow angular movement in any plane by the use of two pairs of hinges affixed to a common floating gimbal ring.The gimbal ring, hinged and pins are designed to restrain the pressure thrust due to internal pressure and shear forces. 
A gimbal ring is either round or square.

Features:

- Absorbs angular movements in all planes
- Restrains pressure thrust forces
- Supports dead weight
- Avoid twisting the bellows
- No main anchors required

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