Hydrotest Cancellation 1

[MAbdo]

I have a question:

We manufacture a pipeline according to PED (Pressure Equipment Directives), designed according to ASME Code and welded according to the German Code AD 2000.

The colleagues informed me that they can not do the hydrotest for the pipeline because it will be connected to the other pipelines in service.

Can we ccancel the hydrotest ?

Or shall it be done ?

Where can I find this in the codes ?

Thank You.

 

[XL83NL]

We manufacture a pipeline according to PED (Pressure Equipment Directives)

I think you mean piping system or pipe spool. Pipelines are outside the scope of the PED. Pipielines are typically those acc ASME B31.4 and B31.8.
Piping systems are typically to ASME B31.3.

designed according to ASME Code and welded according to the German Code AD 2000.

Thats not a good idea, as youre mixing up Codes; in fact, that may be a Code violation. You havent stated which ASME code, but the B31's all refer to ASME IX for welding. Using AD2000 for welding is not correct.

Can we ccancel the hydrotest ?

Or shall it be done ?

Where can I find this in the codes ?

Is it a new-built line, or adjustment/repair/alteration of an exisiting one? Where are you located? What does your local jurisdiction say?

 

[LittleInch]

It is connected or "will be" connected?

Your post makes little sense as noted above.

Normally you can't "cancel" a hydrotest other than very rare and specific circumstances.

More data needed.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[MAbdo]

A piping system will be manufactured. (pipes, bleeders, elbows, etc.).

The company is located in Germany.

So, the company specifications are: Materials + Design = ASME B31.3
Welding = AD 2000

So, the piping is under PED. Hydrotest is ever done with 1.5 MAWP.

But, the Project Dept. told that Operations Dept. can not make the hydrotest because this Piping system will be in service fast and can not be hydrotested as it will be connected with many other piping systems.

So, I was asked as Inspection Dept. if the hydrotest can be canceled.

I do not want to cancel it, but ever I need to know what the codes say.

So, I ask for your advice.

 

[LittleInch]

I suggest you read chapter VI of ASME B 31.3 as there are many options and issues and possible types of inspections, none of which we know.

Section 345.1 give considerable latitude to the "OWNER" to perform or not perform certain tests, but "we can't do it because we need to put it into service quickly" isn't one of them.

Who is the owner and inspector here? You or someone else.

Isolations for testing are normally considered during design and construction.

Tests are there for a reason and that is because the fabricated item can fail in service due to faults in welding and materials. If the fluid is dangerous then injuries, fatalities and material damage can occur. Apart from any cost there may also be criminal charges for anyone found guilty of willfully ignoring the requirements of the design and construction code. Do want that to be you??

TBH, for this to occur in Germany seems rather difficult to believe for what can only be a pressurised system, but what is the fluid and pressure rating?

what inspections have been carried out?


Remember - More details = better answers
Also: If you get a response it's polite to respond to it.