P&ID Symbols (comprehensive)

CMSE-PR0014

Can Pump, Vertical

(PMP)

Centrifugal Pump, Sump

(PMP)

Centrifugal Pump, Horizontal

(PMP)

Circulation Pump

(PMP)

Inline Pump, Vertical

(PMP)

Positive Displacement Pump

(PMP)

Progressive Cavity Pump

(PMP)

Screw Pump

(PMP)

Vacuum Pump

(VP)

Vacuum Pump, High Vacuum

(VP)

Vacuum Pump, Liquid Ring

(VP)

Centrifugal Compressor

(C)

Centrifugal Blower

(B)

Positive Displacement Blower

(B)

Reciprocating Compressor

(C)

Screw Compressor

(C)

Diesel Engine

(M)

Electric Motor

(M)

Turbine Drive

(M)

Paddle Agitator

(M)

Brake

(BRK)

Composite Overwrapped Pressure Vessel

(COPV)

Tank

(TK)

Conical Vessel

(TK)

Rank

(TK)

Hydraulic Accumulator (HA)

or

Gas Charged Accumulator (GCA)

Tank

(TK)

Open Top Tank

(TK)

Tank

(TK)

Pressure Bottle, Cylindrical

(PB)

Tank, Positive Expulsion (Diaphragm/

Bladder)

(TK)

Pressure Bottle, Spherical

(PB)

Vessel

(TK)

Tank

(TK)

VJ Tank

(TK)

Furnace

(HX)

Chiller

(CH)

Electric Heater

(HTR)

Double Pipe Exchanger

(HX)

Double Pipe Exchanger

(HX)

Heat Exchanger

(HX)

Chiller

(CH)

Air Cooled Exchanger

(HX)

Plate & Frame Exchanger

(HX)

Cooling Separator

Diffuser

(DF)

Igniter

(IG)

Cyclone Tower

Flare Stack

(U)

Enclosure

(U)

Single Line Nozzle

Double Line Nozzle

Flow Nozzle

Flanged Nozzle

Flange

Coupler Nozzle

Front Facing Nozzle

Normally Closed (NC) Valve

Locked Closed (LC) Valve

Fail Locked/Fail Last Valve

Normally Open (NO) Valve

Locked Open (LO) Valve

Ball Valve Bodies

Ball Valve Bodies, with equalizing vent

Ball Valve Bodies, double seal

Butterfly Valve Bodies

Knife Valve Body

Needle Valve Bodies, Angle

Needle Valve Bodies, Straight

Plug Valve Body

Diaphragm Valve Bodies

Gate Valve Bodies

Globe Valve Bodies

Three Way Valve Bodies

Venturi Valve Body

Check Valve

(CV)

Diaphragm Valve

Fuse Valve

(FV)

Hydraulic Valve

(HVA)

Hydraulic Valve, purged

(HVA)

Pilot Operated Check Valve

(CV)

Pneumatic Remote Shutoff Valve

(RSV)

Pressure Relief Valve

(RV)

Pressure Relief Valve, Override

(ORV)

Pressure Relief Valve, Pilot operated

(PRV)

Hydraulic Dual Valve

(HVA)

Manual Valve

(MV)

Motor Operated Valve

(MO)

Pilot Valve

Pilot Valve with external tap

Schrader Valve

(MV)

Solenoid Valve

(SV)

Solenoid Valve, with manual reset

(SV)

Hydraulic Servo Valve

(HSV)

Dome Regulator

(DLR)

Manual Regulator

Dome Regulator with external tap

(DLR)

Dome Regulator with external tap and vent

(DLR)

Dome Regulator with internal tap

(DLR)

Dome Regulator with internal tap and vent

(DLR)