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FFS and PCC Code

FFS and PCC Code

FFS and PCC Code

(OP)
Dear all,

Can somebody explain what is the limitation in between of FFS (API-579) and PCC, whether both of them can be applied only for in service plant ?


Thanks,
Yogie

RE: FFS and PCC Code

API-579/ASME FFS is the code governing Fitness for Service applications. It basically describes the tests which can be done to allow equipment with some damage to continue operating even if they are below their construction code requirements.

PCC are Post Construction Codes. There are 2. PCC 1 is a guideline for assembling bolted joints.

PCC 2 refers to the requirements for conducting repairs to Pressure equipment, either for temporary or permanent repairs. These are repairs required after failing a Fitness for Service assessment, or if the user decides they want to repair even if it can be proven to be fit for continuation.

RE: FFS and PCC Code

(OP)
Hi Ripz,

Thank you, regarding flange misalignment is this requirement mandatory to be followed since my understanding this alignment shall be adjusted during construction not in service or post construction or during reinstatement after breaking containment.

RE: FFS and PCC Code

Your construction code will have it's requirements for flange alignment which has to be adhered to at the construction phase.

Anything after the construction phase does not require you to follow the construction code. Which is where the equipment user has to decide what practice to follow for post-construction activities eg. maintenance etc.

Unless you have a contractual agreement/local legislature/insurance requirement, you do not need to follow any particular code. But best practice would advise you to follow a documented procedure based on sound engineering judgement.

RE: FFS and PCC Code

Quote:

PCC are Post Construction Codes. There are 2. PCC 1 is a guideline for assembling bolted joints.
There's a 3rd, PCC-3:2007; "Inspection Planning Using Risk-Based Methods".

RE: FFS and PCC Code

Thanks XL83NL. I did not know this. I wonder if it's as good as API-580.

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