Hinged Expansion Joints

Triad Bellows offers “Hinged Expansion Joints” in single, universal and slotted hinge designs. Our hinged metal bellows expansion joints are designed to allow angular rotation in a single plane only. For this reason hinged metal expansion joints must be used in sets of 2 or 3 to function properly. The hinges and pins are designed to restrain pressure thrust of the bellows and to accept loads transmitted by the piping design. Universal hinged expansion joint designs allow for large amounts of lateral offset while slotted hinge designs can provide for small amounts of axial movement.