Fittings P&ID symbol

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Commonly used P&ID symbols (Piping and Instrumentation Diagram symbols) for piping fittings. Note that they may differ slightly from one project to another.

Flange set
Blind Flange  
Flow orifice  
Removable pipe spool  
Tee type strainer  
Y type strainer  
Basket type strainer
2 basket type strainer
End plug
End cap
Reducer / Expander
Hose connection
Open spacer
Closed spacer
Open spectacle blind
Closed spectacle blind
Mixing Tee
Sight glass
Breather
Gooseneck vent
Sample cooler
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