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Home > Forums > Engineering Forums by Industry > Control Systems engineering > Measurement & control instrumentation engineering Forum

api 551 process measurement instrumentation

thread698-324518
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masoudinst (Electrical)
23 Jun 12 0:59
dear all,

I am reading this standard.I have a question on that.in sec 2.2.2 the third and last sentense are not clear for me please help me by clearifying their meaning.


Thanks in advance,
Masoud
masoudinst (Electrical)
23 Jun 12 1:01
In sec 2.2.3 rolling platforms are refered has anybody such practise, i am mean has an example of this application?
masoudinst (Electrical)
23 Jun 12 2:11
Another quesion,
Refer to sec 2.2.7 what are typical applications for purged impulse lines in oil and gas treatment facilities?
masoudinst (Electrical)
23 Jun 12 3:46
According to this standard there are six more known primary elements for head type flow instruments. As l saw mostly orifice plates are used in this regard. I want to know about others usage situations esp in oil and gas facillities.
Texagere (Petroleum)
17 Aug 12 11:04
Hi Masoud
API551 section flow: sec 2.2.7
In O&G plants, impulse lines (orifice, vcone with diffentiel pressure), on upstream side of separator are often full of slurries. I saw it many times during each shutdown period when we removed instruments for maintenance.
regards
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