Single Expansion Joints
Single Expansion Joints are designed to absorb axial, lateral, and angular movements in piping systems. Constructed by attaching fittings to a single stainless steel bellows, they are commonly used for axial compression and extension. Triad Bellows offers customization with various weldable fittings and accessories like tie rods, flow liners, and covers to enhance performance. These joints are suitable for a wide range of applications, accommodating diameters from 2″ to 110″, temperatures from -400ºF to 1500ºF, and pressures from full vacuum to 750 PSIG.
| MOTION CAPABILITY | SPRING FORCES | |
| MEDIUM |  Axial |
MEDIUM |
| MEDIUM |  Lateral |
MEDIUM |
| LOW |  Angular |
LOW |
 |
Diameter Range: 2″ – 110″ |
 |
Temperature Range: -400º F up to 1500ºF |
 |
Pressure Range: Full Vacuum to 750 PSIG |
| AVAILABLE ACCESSORIES | ||
 |
TIE RODS / LIMIT RODS | YES |
 |
FLOW LINERS | YES |
 |
SHROUDS / COVERS | YES |
This basic expansion joint is made by attaching fittings to a single stainless steel bellow. Triad Bellows will incorporate any weldable fitting into your expansion joint design. Single Metal Bellows Expansion Joints are most commonly used for axial compression and extension but Triad Bellows also has the ability to design them for lateral offset and angular movement. Our design engineers commonly utilize multi-ply metal expansion bellows for the maximum cycle life. Tie Rods, flow liners and covers can be added to the single metal expansion joint to enhance the performance capabilities.
