Hinged Expansion Joints contain hinges which cause the unit to bend in a single plane. Normally these units are prevented by their design from deflecting axially, either in extension or compression. Their hinge mechanisms are usually designed to accept the full pressure thrust. Also, because of the hinge mechanism`s design, shear loads, such as from the weight of adjacent piping, can be accepted by this expansion joint, relieving the piping designer of having to provide additional supports and anchors required by the Single type. Hinged Expansion Joints are offered by Trans Flex Engineers.
Trans Flex Engineers manufactures a wide range of Bellows, Hoses and Joints which include Metallic Expansion Bellows, Metallic Corrugated Hoses, Rubber Expansion Bellows, Metallic Expansion Bellows Element and Rectangular Metallic Expansion Bellows. Some of the Hinged Expansion Joints can be provided with hinge pin holes which are slotted to permit limited axial travel. These "slotted hinge" types will not resist pressure thrust forces, and anchoring must be provided.
