Rubber Expansion Joint Failure

Unlike metal expansion joints the majority of failures related to rubber expansion joints are not catastrophic in nature. Below is an except from the white paper discussing failure analysis of rubber expansion joints and what it can tell you about the overall health of your piping system. Rubber bellows can crack if they are over pressurized or placed in a harsh environment.

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It will also discuss failure analysis of rubber expansion joints and some of the leading causes of joint failure.

Rubber expansion joint failure.

Common signs of rubber expansion joint fatigue. We have divided the list of some of the most common causes of expansion joint failure into three groups based upon the actions that can be attributed to them. Neoprene rubber expansion joint read more. An expansion joint or movement joint is an assembly designed to hold parts together while safely absorbing temperature induced expansion and contraction of building materials and vibration or to allow movement due to ground settlement or seismic activity.

What are the failures of expansion joints. Improper handling during transport storage or assembly. Main causes of failure for expansion joints. During routine inspections signs of fatigue and or premature failure can be easily detected in rubber expansion joints long before the actual failure occurs.

Typical causes of pipe expansion joint failure. Expansion joints failure is caused by corrosion erosion cyclic fatigue or thermal creep at elevated temperatures. 1 prior to start up. They are commonly found between sections of buildings bridges sidewalks railway tracks piping systems ships and other structures.

Failures of course have occurred which are of concern both to users and to reputable pipe expansion joint manufacturers. Added on wed jun 29 2011. Bellows pipe expansion joints which have been properly designed and manufactured for specified piping system conditions have given many years of satisfactory service.

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