Externally Pressurized Expansion Joint

• Absorbs large axial movements without squirm.
•  Eliminates main anchors.
•   Minimum guiding required for externally pressurized expansion joints
•   Heavy duty construction for bellow protection.

Externally Pressurized Expansion Joint Absorbs large amount of axail movement under high pressure .An Externally Pressurized Expansion Joint takes pressure from the outside of the bellows element rather than on the inside as in a conventional expansion joint. In conventional type of expansion joints with internally pressurized bellows it is not possible to accommodate large axial movements due to the squirm associated with the higher bellows length.

The stabilizing effect of the external pressure increases the bellows capacity to absorb high axial movements without squirm making the externally pressurized expansion joints the best solution for applications involving very high axial movements.