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  1. ElroyJetson

    Belleville washers effectiveness on 6" to 60" flanges (pipe and HX) myth or fact

    I am not in the Aerospace industry but rather in the Oil and gas or petroleum. I don't no how to change the tag on my user name. To be more specific I am talking about putting Belleville washers on the bolts of the body flanges on a ASME Section 8 Div 1 pressure vessel (Large piping rarely...
  2. ElroyJetson

    Belleville washers effectiveness on 6" to 60" flanges (pipe and HX) myth or fact

    Hello everyone, I was wondering if belleville washers really work effectively. 1. All springs add or maintain force but how much compared to relaxation of bolts and gasket? 2. How is the variance of a torque wrench factored in on bolting them up(Given values of torque manufacture is different...

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