Hinged Expansion Joints
Hinged Expansion Joints allow angular movement in a single plane and are equipped with hinges or axes to facilitate bending. They prevent axial deviation due to extension or compression and are suitable for applications involving angular rotation in one plane, such as power plants and steam ducts.
| MOTION CAPABILITY | SPRING FORCES | |
| NONE |  Axial |
NONE |
| NONE |  Lateral |
NONE |
| MEDIUM |  Angular |
LOW |
 |
Diameter Range: 2″ – 48″ |
 |
Temperature Range: -400º F up to 700ºF |
 |
Pressure Range: Full Vacuum to 300 PSIG |
| AVAILABLE ACCESSORIES | ||
 |
TIE RODS / LIMIT RODS | NO |
 |
FLOW LINERS | YES |
 |
SHROUDS / COVERS | NO |
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 the 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.