×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

standard vacuum pipe flange size

standard vacuum pipe flange size

standard vacuum pipe flange size

(OP)
Hello,

I'm designing an optical coupling to use a vacuum pipe flange and clamp fitting, like the one pictured here:

http://en.wikipedia.org/wiki/File:KF_25_Tee.jpg

I need to know the dimensions of the flange so i can recreate them in the coupling I design.

I am using this clamp:

http://www.mcmaster.com/param/asp/PSearch2.asp?reqTyp=parametric&act=psearch&FAM=avacuumtf&FT_138=17884&FT_7089=293882&FT_6734=284764&FT_7485=294184&FT_7493=291204&ppe=4&session=avacuumtf;138=17884;7089=293882;M;I&;sesnextrep=171671209766965&ScreenWidth=1280&McMMainWidth=1070

for 1" diameter tubing with a 1.57" diameter flange.

I need to know the angle of the flange taper(or the horizontal distance covered by the angle) and the width of the flange. I attached a picture to make absolutely clear what dimensions I need. in the pic, I need dims C and A or B.

Thank you for andy and all help and happy holidays.

RE: standard vacuum pipe flange size

It seems logical that asking the manufacturer of the clamps would be a good starting point.  

RE: standard vacuum pipe flange size

i'm not certain about the size  .
so i can  fix the  angel

RE: standard vacuum pipe flange size

The KF 25 and the fact you are talking about Vacuum service would suggest you are refering to ISO KF type fittings.

In which case have a look at the folowing link which has some dimensional and detail information http://www.caburn.com/resources/downloads/pdfs/sec1.2.pdf

I can not confirm the accuracy of the information contained in the link but I have seen 15 degrees quoted in this and many other documents for the angle of taper for the back side of the flange of an ISO-KF fitting. ISO-KF fittings should conform to DIN 28403, I believe, so if you can get a copy you may be able to check for certain.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources