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If a simple bellows is designed without limit rods (for operating cases), under a hydro test, do you recommend adding limit rods?
|Yes, if they are testing just the expansion joint or if they are testing when installed, they have to make sure that the pipe line is anchored or have limit rods added to the expansion joint to absorb the pressure thrust.
Single Metallic Expansion Joints with Limit Rods
Why should I use a double offset expansion joint?
Added on Sat, Apr 16, 2011
How do the bellows flex when you have a solid rod connecting each end together?
Added on Fri, Oct 19, 2012
Does US Bellows, Inc. have any unique design for pressure thrust balancing an in-line slip joint for long stretch of large-bore pipes? We have this particular issue of having really large anchor forces on both sides of the slip joint.
Added on Thu, May 15, 2014
How common is it to use steel expansion joint in and out of centrifugal pump?
Added on Tue, Oct 16, 2012
Does air between multilayer expansion joints reduce the pressure rating from single thickness?
Added on Sat, Dec 10, 2011