Hinged Expanison Joints
We produce hinged expansion joints diameter ranging from 100mm to 3000mm.
Our hinged expansion joint contain hinges or pivots which cause the unit to bend in a single plane.Normally the 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.In addition ,since 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.
Some of the hinge types 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.If axial travel is desired ,the piping designer should clearly state that the slotted hinge type is wanted in the design requirements,and they should provide for pressure thrust anchoring.On the other hand,if the full axial restraint of the hinged type is desired ,the piping designer should understand that there is no allowance in the expansion joint for any axial travel,including none for any installation misalignment.
This is the picture of deliverying hinged expansion joints to Europe in 10th,Sep,2018 in our factory below, for your referance.
