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Specific Applications
High-pressure MRR series expansion joints DN3600 .
each ply . They are much more flexible than thick wall bellows and they incorporate more convolutions but the height of the convolutions is shorter . The system involves the use of reinforcement or equalizing rings located around the outside of the convolution thus preventing the bellows being forced out of shape due to the high pressures . Equalizing and reinforcing rings are devices used on some expansion joints fitting snugly in the roots of the convolutions . The primary purpose of these devices is
to reinforce the bellows against internal pressure and equalize the movement among all the corrugations . These components are made of carbon steel , stainless steel or other suitable alloys . Reinforcing rings are usually “ T ” shaped in cross section and equalizing rings are generally fabricated from tubing or solid round bars of carbon steel , stainless steel , or other suitable alloys . Standard materials include : Austenitic Stainless Steels and Nickel Alloys : Inconel , Incoloy , Hastelloy , etc .
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