Results 1 to 3 of 3

Thread: Compression fittings and ferrule compression

  1. #1
    Associate Engineer
    Join Date
    Apr 2018
    Posts
    3

    Compression fittings and ferrule compression

    Hi all,
    Just need a point in the right direction, im trying to calculate the force applied to a ferrule as torque is applied to the nut on a compression fitting. or more accurately the force applied based on revolution of the nut.
    My question is, is this force calculated the same as any other bolt clamping force even though this force is effectively applied within the bolt itself, I think?
    stemming from that, most sources i can find to do with this seem to assume that the material being clamped is stiffer than the clamping object and isn't significantly deformed. compression fittings rely on the ferrule being deformed, and again confused if im barking u the wrong tree with my method?

    Cheers
    Dan

  2. #2
    Lead Engineer
    Join Date
    Aug 2013
    Location
    Houston TX USA
    Posts
    421
    The actual force applied will be determined by the crushing resistance of the ferrule and the contained tubing when the clamping contact between those two components is sufficient to form a pressure tight seal at the rated pressure of the fitting. The maximum available force before fitting/ferrule thread failure can be determined in the same manner as that of a nut/bolt assembly.

  3. #3
    Associate Engineer
    Join Date
    Apr 2018
    Posts
    3
    thank you so much for your reply, Ive been trying to find this for weeks .

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •