Valve for ASME B31.3 Category M service
Valve for ASME B31.3 Category M service
(OP)
Dear member,
ASME B31.3 para.M307.2.(b).(1) specifies as below;
==================== Quote =============================
(1) Special consideration shall be given to
valve design to prevent stem leakage to the environment.
==================== Unquote ===========================
There may be some methods to reflect this requirement
such as fugitive emission test or special packing, etc.
Now we are looking for suitable methods to reflect this requirement, which has to be cheapest way because the cost
shall be paid by us.
Could you advise me of your experience?
Thank you....
ASME B31.3 para.M307.2.(b).(1) specifies as below;
==================== Quote =============================
(1) Special consideration shall be given to
valve design to prevent stem leakage to the environment.
==================== Unquote ===========================
There may be some methods to reflect this requirement
such as fugitive emission test or special packing, etc.
Now we are looking for suitable methods to reflect this requirement, which has to be cheapest way because the cost
shall be paid by us.
Could you advise me of your experience?
Thank you....





RE: Valve for ASME B31.3 Category M service
'Someone' is always responsible for certification or allowance to operate the 'plant' you are supplying to.
You will have to clarify if 'designed according to' or 'tested according to' is required, and to what certification level.
Please also remind yourself that buying a too low quality is not always the cheapest coming to startup tests and trial runs, not to mention cost/lifetime considerations and risk and cost by early breakdown.
RE: Valve for ASME B31.3 Category M service
RE: Valve for ASME B31.3 Category M service
http://www.valvola.com/bellow_sealed_valves.htm
and this:
http://www
Look at this:
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