Universal Tied Expansion Joint
Universal tied expansion joints consist of two bellows with a central pipe and tie rods to withstand reaction forces produced by internal pressure. The universal tied expansion joint allows large lateral movement in all planes, this movement can be increased by increasing the length of the central pipe. The universal tied expansion joint can take greater axial, lateral and angular movements than a single tied expansion joint. If the universal tied expansion joint is designed with only two tie rods, equally spaced @ 180 degree, the expansion joint will take both lateral and angular movements. If more than two tie rods are used then this kind of expansion joint will only take lateral movement. Dome washers are also used depending upon the design requirement.
Types of universal tied expansion joints:
Universal tied expansion joint with flanges
Universal tied expansion joint with pipe ends
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