×
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

useful life of pvc pipe in sodium hypochlorite service

useful life of pvc pipe in sodium hypochlorite service

useful life of pvc pipe in sodium hypochlorite service

(OP)
How can one determing the remaining life of pvc pipe in sodium hypochlorite service?  

RE: useful life of pvc pipe in sodium hypochlorite service

Shouldn't affect the useful life unless exposed to UV.

RE: useful life of pvc pipe in sodium hypochlorite service

That is a complex question because the life of the pvc pipe depends on many factors such as chemical strength, operating pressure, operating temperature, exposure to sunlight, and maximum pressure among other parameters.

My opinion is that plastics typically will have a service life in the range of 7-10 years.

You would probably be a little better off if you used CPVC pipe instead of PVC.

http://books.google.com/books?id=9_2idzksARMC&pg=PA501&lpg=PA501&dq=pvc+pipe+degradation+hypochlorite&source=bl&ots=jFGRxzOL_n&sig=PmGsLH_--4yFuJub92HugVHSRPM&hl=en&ei=pcW4TbXuM-Ts0gGV0LHkDw&sa=X&;oi=book_result&ct=result&resnum=3&ved=0CCYQ6AEwAg#v=onepage&q=pvc%20pipe%20degradation%20hypochlorite&f=false

The following paper has a test methodology and arrived at 8 year estimated life of PVC in hypochlorite service.

http://www.pvc4pipes.com/en/pdfs/The-lifetimes-of-PE-and-PVC-materials-for-use-in-sodium-hypochlorite-and-hydrogen-peroxide-environments.pdf

RE: useful life of pvc pipe in sodium hypochlorite service

The technical periodical "Machine Design" will publish I believe an annual article on materials including Plastics.  Such article will detail the pros and cons of the variety of plastics in the industrial environment. commercially available.  The Machinist Handbook also has a detail section on plastics.   

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