Hydrotesting for ASME Sec. VIII Vessel.

[MOHAMMED89]

We are modifying an Existing vessel (20 years old), Modification scope is replacing the existing boot with new one of large size. I would like to know after modification wheather the vessel can be done for the full hydro test or only the modified portion to be hydro tested.??

 

[TGS4]

It likely depends on the rules in your local jurisdiction.

However, if it were in my jurisdiction, the answer would be yes to the full vessel.

 

[SnTMan]

Can you even isolate the modified portion?

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[MOHAMMED89]

@SnTMan

Some temporary arrangement is required at the Modified portion to isolate for hydrotest.

 

[oknow]

Is this a ASME Code Stamped Item? Is the organization a NB 'R " Certificate holder? The NBIC has some guidelines. Contact the Jurisdiction. How about the Insurance Company for the in-service? As a reminder if the repair is not conducted by a NB Certificate holder it is quite possible that if it is an ASME Item once the repair or alteration begins it is no longer a ASME vessel and the Stamping/Nameplate shall be removed.