×
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

tube glass, mawp? thickness?

tube glass, mawp? thickness?

tube glass, mawp? thickness?

(OP)
We have a stand for fluid steam demostration. There is steam traps with glass body and steel. I need know "theorical" equation for determinate the thickness o allowable pressure in a tube (cylindrical) of glass, specifically borosylicate 33. We working, in the laboratory with 30 psig max pressure.
A tube thickness 2.5 mm (0.098 inch) is enough for 30 psig?
thanks advance
 

RE: tube glass, mawp? thickness?

You need to give a lot more information about your assembly to help provide any assistance.
Is it a cylinder?
If cylinder what is the diameter?
How is it attached to the metal?
What is the temperature?
Is there is thermal shock?

Based on the size of glass pipe we used your thickness sounds a might thin.  

RE: tube glass, mawp? thickness?

(OP)
oh excuse please. Well, the cylinder is made in borosilicate 3.3 or Pyrex.
diameter is 90 mm (3.54")
thickness= 2.5 mm (0.098")
the working pressure is 30 psig. (max)
temperature  max= 120ºC (248ºF )
Referent to thermal shock, the inicial temperature is 32ºC and the final is 120ºC in a aproximately 20 minutes.  
the  fluid is steam, assume saturate.
thanks advance unclesyd  and someothers.

i want to know the mawp or the minimal thickness.



 

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