valve leakage rating class standard
valve leakage rating class standard
(OP)
Hi All,
To identify the leakage rate for all the valves, which standard to be reffered.? i had a confusion on whether to refer to API 598 / BS EN ISO 15848.
going through these standards, i understand that, ISO 15848 deals with stem seal leakages and API 598 deals valve seat leakages. hence, whether we need to specify both standards to the VENDOR for the leakage rate / classes.
To identify the leakage rate for all the valves, which standard to be reffered.? i had a confusion on whether to refer to API 598 / BS EN ISO 15848.
going through these standards, i understand that, ISO 15848 deals with stem seal leakages and API 598 deals valve seat leakages. hence, whether we need to specify both standards to the VENDOR for the leakage rate / classes.





RE: valve leakage rating class standard
RE: valve leakage rating class standard
So, in that case, for a Ball Valve, Floating type, (Considering a sour service fluid) it is not requried to indicate ISO 15848 leakage class, and shall be in accordance to API 598 leakage rates only. is that right?
Thanks.
RE: valve leakage rating class standard
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: valve leakage rating class standard
RE: valve leakage rating class standard
All participants in this forum has a tendency to think that most valves in the world are produced and tested to US specifications, and used in petroleum related servicee
As all requiered tests are requiered by the end-user as a function of application, fluid and local regulations and rules, the most precise answer will be given when all details are known.
I can see situations where both tests (or one or the other) are requiered for all types of valves. If the question is a question of what tests should be incorporated as a standard in production for the general onshore (surface) worldwide petroleum market, answers given above
is in my opinion a good indication.