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p&id help please

p&id help please

p&id help please

(OP)
can someone please tell me why a nozzle and gate valve have same symbol in p&id, and how can we differentiate them? and also can someone post a guide how to read fabrication iso drawing and p&id complete symbol char

RE: p&id help please

sdomermpc,
You wrote the following questions:
1. - why does a nozzle and gate valve have same symbol in p&id?
2. - how can we differentiate them?
3. - how to read fabrication iso drawing?
4. - p&id complete symbol chart?

My answers:
1., 2. & 4.: - They do not have the same symbol on normal P&IDs. Whoever did your P&ID does not realize there is an Industry Standard and the Industry Standard does not show vessel nozzles.
Try here: https://www.google.com/search?q=ISA+P%26ID+Standar...
and here http://www.academia.edu/8990016/P_and_ID_SYMBOLS_P...

3. - Look here: https://www.google.com/search?q=piping+isometric+s...

Sometimes its possible to do all the right things and still get bad results

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