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What is angular deflection?
|When an expansion joint experiences bending about its center, which is on the centerline and halfway between the ends of the bellows, this deflection is referred to as angular. It can occur in any plane that passes through the centerline, but the plane should be clearly indicated if the expansion joint is more complicated than the simplest type, i.e., only a bellows with flanges or pipe ends. As in lateral movements, piping analyses may reveal angular deflections occurring in more than one plane. With angular deflection the basis for the proper selection is the maximum of the various deflections, and not the vector sum as in the lateral case. Multiple angular deflections in multiple planes produce a single angular deflection in a single resultant plane. As in lateral deflection, this plane must be understood if structural components are to be used.
Do externally pressurized bellows need anchors for thrust load?
Added on Fri, Oct 19, 2012
What is expansion joint o.a.l?
Added on Thu, Feb 10, 2011
What anti-corrosion coatings are used on expansion joints?
Added on Mon, Jun 18, 2012
How do you anchor and guide an expansion joint on elevated pipe?
Added on Wed, Jul 6, 2011
Why should I use a double offset expansion joint?
Added on Sat, Apr 16, 2011