Valves Testing; Gate Valve/Ball Valve

The purpose of a <...test...> is to give a high level of confidence that the thing being <...tested...> will operate satisfactorily at conditions less stressful than those applied on the <...test...>. For this to be sensible, the conditions need to be established before the <...test...> takes place.

<...is there any reference documents can refer to clarify these responsibilities...>

What is not sensible is the possibility of there being no previous <...test...> procedures that can be deployed on this new batch of <...gate valve / ball valve[s]...>. If this is the case then the <...test...> protocol needs to be written from scratch. This is something proprietary to the facility/Client in question, and not something this forum can carry out on any poster's behalf.

Otherwise it isn't a <...test...>. It's merely a "jolly" for those going on the visit.

thank you for ur reply..

my query was regards who is the responsible for witness and certify these valves. the performer is maintenance team, then the performer can be the certifier at the same time. or should involve another stakeholder?

the reference documents such as API standards and codes. API 598 dose not specify the RACI. so any other document can I refer..

Regards,

This is a matter of procedure at the facility or at the organisation requiring the <...test...> to be carried out; it isn't something the forum can supply.

Start by writing the test protocol.

I would say if these are existing valves that require periodic testing as a maintenance procedure, then I would say it falls under maintenance....

Inspection would be an initial assessment that examined and evaluated each piece of equipment and establishes a maintenance schedule for each piece, then reoccurs yearly( or periodically) and reevaluates conditions and possibly revises maintenance and or replacement recommendations...the inspection procedure also would deal with codes and regulations that must be followed, and inventory repair parts kept on site, so a great deal of expertise is required....

Engineering personnel generally make tweaks and changes to the process over time and inform the Inspection team in case they decide to make changes to the maintenance schedule...

This is my experience, your preferences might differ...

https://www.reliableplant.com/Read/23194/total-maintenance-inspection-strategy

Um, <...witness testing...> implies new equipment. _{Just sayin'.}

for both new installed valves and valve with PM job.

Start by writing the test protocol for each case.

ok. what about issuing the certificate? maintenance can issue it? is performer can be the certifier?

This is a matter of procedure at the facility or at the organisation requiring the <...test...> to be carried out; it isn't something the forum can supply.

Start by writing the test protocol.

The user of the <...certificate...> will be the one defining what the test protocol will contain. After all, it is a record that testing has taken place.

...and of the satisfactory nature or otherwise of the <...test...> criteria on that particular date.

ok. noted.

another question.. is must any hydrotest or pneumatic test in oil and gas plant to be done in attendance of the inspection engineer, like the pressure vessel hydrotest or piping and PSVs. in case yes. what about the valves?

because there is argument, that the API does not mentioned these under inspector scope. i have doubt about it, as i could not find any clue for that.

Regards

<...is must any hydrotest or pneumatic test in oil and gas plant to be done in attendance of the inspection engineer...>

It depends upon the requirements imposed by the company supplying both burst/collapse indemnity and business loss insurance cover for the facility. If (one of) that company's personnel witnessed the test then that(those) individual(')s(') name(s) and signatures(s) will appear on the test certificate for the equipment that was witness-tested.

You can't have somebody judging their own work, you need a third party who is expert in the field...Generally the maintenance is performed by the crew, mechanics 1st grade, mechanics 2nd grade, and trainee or helpers...the supervisor of the crew assigns the work and evaluates the performance, orders parts, assigns crews to jobs, basically the boss or head of maintenance....Certification is generally done by a third party, arm's length, autonomous, expert in the field, who evaluates the performance of the maintenance department overall...then makes report on conditions and any recommendations....

...which is a facility-specific or organisation-specific procedure. Exactly.

GA