Tied Expansion Joints

This expansion joint has the same characteristics of the Universal Expansion Joint except the tie rod hardware has been added. With the addition of the tie rods to restrain pressure thrust, the expansion joint will not accept external axial movement without overcoming this pressure thrust force. However, the thermal expansion between the tie rods (within the expansion joint) shall be accommodated by the bellows elements. If more than two tie rods are used to restrain pressure thrust, the unit will not accept angular rotation. If only two tie rods are used at 180 degrees apart, the unit can deflect angularly as well as laterally. In many cases, the Tied Universal Expansion Joint is installed between two elbows in a piping system. In order to minimize the effect of deflection of the elbows, the tie rods are often installed on the elbow centerlines.

Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints
Tied Expansion Joints


Line Diagram

Tied Expansion Joints Line Diagram