×
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

question regarding accreditation (before use)

question regarding accreditation (before use)

question regarding accreditation (before use)

(OP)
Hello to you all,

i would like to know more about the (Lloyd's)accreditation/testing in general for my understanding.

For instance some questions i have:

- what parts need to be accredited?(and what parts don't?)

- what exactly is accredited? Is it limited only to pure technical aspects(material/dimensions/stresses etc.) or also to other non-technical aspects(company structure/level of knowledge/certification of involved personel)?

- how thorough are such test on for example a butterflyvalve? For example, does the engineer need to supply certain design calculations and the calculated stress levels? Are 'inputs/loads' for such calculations checked by the accreditors?

- who determines what needs to be accredited in the first place? The customer? Certain design standards? Insurance company's?


I was wondering how this process works out in real life on different types of parts

Thank you all in advance
 

RE: question regarding accreditation (before use)



LLoyds (or for that case) any other accrediting company is generally testing and accrediting valves to satisfy quality requirements for different valves (and part of valves) for certain markets, uses and applications.

It would be easier to turn the question around: if you know the market, application and competitors, it would be easier to see what accreditations and tests that is necessary to be able to compete in this special market.

And yes: it is always end users that decides the necessary qualifications, but this might again stem for instance from general international or national requirements for shipping within certain given waters, offshore requirements for oil and gas, certain applications (exampel power plants) etc. etc.

RE: question regarding accreditation (before use)

(OP)
I see, that makes sense.

I see companies that sell Indian/Chinese valves, where the testing is said to be done company internal.

The purchahing party must simple 'believe' this testing is done and according to standards?

How does this work?

Also, i see a lot of companies buy Indian/Chinese castings and only do assembly.

Again, how does this work with regard to accreditation?

We all know how fluctuating such castings can be regarding quality / consistency?

Thank you again!

RE: question regarding accreditation (before use)


Re castings: some european valve producers, and some international (all well established for a long time on the market) buy 'cheapest possible castings' and with varying results and experiences.

Some have selected to buy only european castings for high class valves from top quality producers. For other suppliers they commonly have extra quality checks at reception for castings or do checks directly at producers in adddition to QA- auditions to prove that quality systems are approved, updated and practised properly.

A well-known problem has been varying quality and high percentages of unacceptable products, related to all newcomers in the international market.

Both for castings and quality in general please remember that this has been and is under constant upgrading as a 'learning and competing' process worldwide.

How to buy cheapest and best at acceptable quality is an art in itself, facit varying over time.

Only a purchasing company with good routines and good quality assurance procedures will be able to do this well.

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