P & ID Question (mystery symbol)
P & ID Question (mystery symbol)
(OP)
I have a P & ID for a piping system at work with a mystery symbol on it, can anyone recall what this may mean? It is a small circle on the end of a 45 degree line. Some are filled in black some are not. No consistancy. Most are located close to to joints in both pipe and tubing. ?????





RE: P & ID Question (mystery symbol)
It is not a generally accepted symbol.
I found one reference - the black circle at end of 45-deg line represented an elevated Fire monitor.
The same reference had similar symbols for other type of Fire equipment -- but nothing with open circle.
I also checked my list of welding symbols -- did not find
I view this a 'site specific"
RE: P & ID Question (mystery symbol)
RE: P & ID Question (mystery symbol)
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: P & ID Question (mystery symbol)
Once in a while when piping engs. gets to make P&ID all sorts of weird symbols and intentions sneaks in
Best regards
Morten
RE: P & ID Question (mystery symbol)
RE: P & ID Question (mystery symbol)
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: P & ID Question (mystery symbol)
RE: P & ID Question (mystery symbol)
rmw
RE: P & ID Question (mystery symbol)
The pin with empty pinhead represents interfaces between systems/plants and subsystems/plant sections.
The pin with full pinhead represents interfaces between piping subsystems.
So you need to obtain KKS system to understand the full concept.
Hope it helps.