×
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

Hydrostatic test pressure assessment
3

Hydrostatic test pressure assessment

Hydrostatic test pressure assessment

(OP)
Hi,

At our office we don't have the design code BS-8010 part 1 (which seems to be superseeded now). However, I'm looking for the formula to assess the hydrostatic test pressure of piping systems.
Anybody who can give me the formula, or refer me to it?
Thanks in advance.

Best regards,
FKE

RE: Hydrostatic test pressure assessment

Hydrostatic testing is done at 1.5 times the design pressure. If you are going to do a in field hydro, make sure you can isolate that pipe spool.

RE: Hydrostatic test pressure assessment

ticku, Check your code first.  BS-8010 was the Brit pipeline code, so I would really be surprized if tests are conducted at 1.5 X.  Usually pipeline hydrostatic tests have different test pressure factors depending on the location and type of facility being tested.

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

RE: Hydrostatic test pressure assessment

You need to get a copy of the codes, more info,

[url=http://www.iso.ch/iso/en/CatalogueDetailPage.CatalogueDetail?CSNUMBER=22425&;ICS1=75&ICS2=200&ICS3=]

In 2000, the International Organization for Standardisation published ISO 13623: Petroleum and Natural Gas Industries Pipeline Transportation Systems. CEN has decided to develop a Europeanmodified version of ISO 13623 designated EN 14161. EN 14161 will not include gassupply pipelines on land, which are covered by an existing CEN Standard issued in the UK as BS EN 1594.  The title of EN 14161 will be Petroleum and natural gas industries pipeline transportation systems (ISO 13623:2000 Modified). The agreements between CEN and all national Standards’ organizations of the EU member states will result in EN 14161 superseding national Standards and consequently BS 8010 is withdrawn.

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

RE: Hydrostatic test pressure assessment

(OP)
Hi,

Thank you all for your input. So far I have concluded that ticku is indeed correct. Hydrotest pressure is 1,5 * design pressure.
The code is now replaced by BS-EN 14161, however, the superseded BS-8010 prt.1 is still valid for our project.

Best regards.
FKE

RE: Hydrostatic test pressure assessment

Does EN 14161 differ from BS 8010 in testing requirements for different areas or for various facilities on/along the pipeline?

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

RE: Hydrostatic test pressure assessment

While I'm not sure how all "codes" come down on this particular issue, I think it should be remembered some piping systems could conceivably be composed of quite complex mixes of pipes, fittings, valves, outlets, couplings, other devices, well as all manner of joints, gasketing systems for joints, welding schemes, anchorages and restraints involving these items etc.  When it comes to applying a test or operating/transient pressure scenario to a particular piping reach, it can be argued that the weakest item/aspect controls (analogous perhaps to the old adage, "A chain is no stronger than its weakest link").  It would appear the best time to think about all this is up front when same are specified.

RE: Hydrostatic test pressure assessment

Usually for (petro) pipelines the test pressure is shown on the alignment sheets and also appears on the hydrotest plan drawings.  Maybe he's checking those things.

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

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