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  1. DDario

    How does bolt length relate to stretch/preload?

    I got asked a question today that stumped me, We are fastening a 700HP drive motor to a new pedestal & the PM was concerned that less than 12" of bolt length would result in there "not being enough stretch" (1" bolts/studs) I understand that a longer bolt would have more twist and stretch...
  2. DDario

    Flange Temperature Ratings

    Hi all, I am designing a system using 3" 150# WN Flanges, 316SS One of my suppliers gave me a low temperature rating of -20F, My project will be going into an arctic environment, with temperatures reaching -50F or lower, I hadn't thought for a second that a 316 flange would have a problem...

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