×
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

PVC - or uPVC

PVC - or uPVC

PVC - or uPVC

(OP)
We have a design and build contract for an irrigation project. Water is from deep ground water with a temperature of 32.5 degree Centigrade.

Supply is to farm hydrants at a pressure of 4 bar. Supply into the pipeline network is through  pressure regulating valves and I am concerned that leakage through the valves will result in static pressures of up to 12 bar.

The contract calls for PVC and uPVC pipe but does not specify what is to be used where.

The pressure ratings for the pipe are not specified but for the temperatures of 32.5 the pressure will have to be derated by 40%.

I can only find data on uPVC water pipe. I am looking for advice on PVC and whether it is more suited to the conditions than u-PVC.

RE: PVC - or uPVC

You will find PVC-C Chlorinated PVC used in building services
PVC-O Orientated PVC which is used in water transimission lines
PVC-M Modifed PVC used in water transmission lines

However from what you describe it is PVC-U that has been specified. Yes you will need to derate the pipe for temperature.

All have different properites and should be covered by your national or are covered by ISO standards.

Australian standards can be bought over the internet from www.standards.com.au and cover all these materials.

Sharing knowledge is a way to immortality

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