Standard P&ID Symbols Legend | Industry Standardized P&ID ...

Standard P&ID Symbols Legend | Industry Standardized P&ID Symbols

Piping and Instrument Diagram Standard Symbols Detailed Documentation provides a standard set of shapes & symbols for documenting P&ID and PFD,

including standard shapes of instrument, valves, pump, heating exchanges, mixers, crushers, vessels, compressors, filters, motors and connecting shapes.

Instrument

Indicator

Computer Indicator

LC

65

Behind Control

Programmable

Indicator

PT

55

Pressure

Transmitter

On Central

Control

Displayed

Programmable

Device

PR

55

Pressure

Recorder

On Local

Control Pane

Computer

PC

Pressure

Controller

Behind a Local

Control

Unit Control

Panel

Indicator 2

Indicator 3

55

Indicator 4

Indicator 5

50

Odometer

TI

TT

TR

TC

FI

FT

Pressure

Gauge

FR

Temp Indicator

105

PRC

Temp

Transmitter

LA

Temp Recorder

Temp

Controller

Flow Indicator

Flow

Transmitter

FE

TE

LG

AT

Thermometer

Shared Indicator

Displayed

Configurable

Not Gate

Correcting

Element

FC

LI

PI

LT

65

Diamond

Pressure

Indicating

Flow Controller

Level Indicator

Pressure

Indicator

P

S

P X

X

Thermometers

Pressure

Recording

Ultrasonic Meter

Averaging Pitot

Tube

Level Alarm

V-cone Meter

Level Meter

Flow Element

Venturi Meter

Temperature

Element

Quick Change

Turbine Meter

Level Gauge

Analyzer

Transmitter

Rotometer

Double

Transducer

Steam Traced

Coriolis Flow

Sensor

Flow Nozzle

Meter

Flume Meter

Manhole

Socket

Connection

Specialty Item

Venturi

S

Pressure

Gauges

Weir Meter

Flow Recorder

1

Flowmeter

Pitot Tube

Target Meter

PIC

25

T

Pitot Tube Type

Flow

Or Gate

Wedge Meter

40

T

Magnetic

Level

Controller

Support Bracket

Sampler

Flowmeter

Support Leg

Straightening

Vanes

Level

Transmitter

Diaphragm

Meter

Vortex Sensor

Support Ring

D

Level Recorder

R

Rotary Meter

And Gate

Support Skirt

Hand-Operated

Gate Valve

Check Valve 2

S

Solenoid Valve

4-way Plug

Valve

Pinch Valve

Gate Valve

Butterfly Valve

Closed Gate

Valve

Flanged Valve

Hand-Operated

Globe Valve

Flanged Valve 2

Shared Indicator

LR

65

Valves

Globe Valve

Angle Valve

Hand-Operated

Plug or Cock

Valve

Check Valve

P

Motor-Operated

Valve

Electro-Hydraulic

Valve

Balanced Diaphragm

Gate Valve

Pilot Gate Valve

Gauge

Bleeder Valve

Spring Gate Valve

W

Integrated Block

Valve

Ram Valve

Relief Valve

Powered Valve

Slide Valve

Maual Integrated

Valve

Angle Valve

Float-Operated

Valve

Metering Coke

Orifice

Needel Valve

Back Pressure

Regulator

Auto Recirculation

Weight Gate

Valve

Angle Globe

Valve

Piston-Operated

Valve

4-way Valve

Hydraulic Valve

E/H

M

Rotary Valve

Control Valve

H

Minimum Flow

Valve

Knife Valve

Angle Blowdown

Valve

Needle Valve

Ball

Excess Flow

Valve

3-Way Valve

Normally Closed

Ball

Post Indicator

3-Way Valve 2

Diaghragm

Self Draining Valve

3-Way Plug

Valve

Plug Valve

Rotameter

Quarter Turn Valve

Double Acting

Quarter Turn Valve

Spring Acting

Water Flow Meter

Diaphragm Valve

Self-Operating

Release Valve

Reciprocating

pump

Diesel motor

Pumps

Compressor

Reciprocating

Compressor

Reciprocating

Compressor 2

Axial

Compressor

Centrifugal

pump

Centrifugal

pump 3

Centrifugal

Centrifugal

pump 4

Rotary

Compressor 2

Turbine pump

Positive displacement

pump 2

Centrifugal

pump 2

Compressor

silencers

Rotary

Compressor

Sump pump

Rotary pump

Fan

Rotary gear

pump

Selectable fan

Peristaltic pump

Fan blades

Gas blower

Fan blades 2

Gear pump

Vertical pump

ISO centrifugal pump

ISO diaphragm

pump

ISO gear pump

ISO Progressive

pump

ISO positive

displacement pump

Triple fan blades

Rotory Compressor

and silencers

Liquid ring

Compressor

Pump 2

ISO Liquid pump

ISO reciprocating

piston pump

Proportioning pump

Axial flow fan

Liquid ring

vacuum pump

Vacuum pump

ISO screw pump

Turbine driver

Centrifugal

Compressor

T

Centrifugal

Compressor 2

Selectable

Compressor

Screw pump

Doubleflow turbine

Positive displacement

pump

Screw pump 2

Pump

Motor driven turbine

Cavity pump

Centrifugal

Compressor 3

Horizontal pump

Centrifugal

blower

Positive displacement

pump

Submersible pump

Ejector

Vertical pump

Reciprocating

pump

Spray

Packing column

Boiler

Covered Tank

Thermal Insulation

Vessel

Dome Boiler

Floating Roof Tank

Heating-cooling

Jacket Vessel

Knock-out drum

Hot Liquid Boiler

Open Bulk Storage

Brackets Vessel

Bag

Tank

Dome Roof Tank

Dished Ends Vessel

Bag (ISO)

Tank 2

Cone Roof Tank

Pit Vessel

Barrel

Tank 3

Internal Floating

Roof Tank

Electrical Heating

Vessel

Staggered Baffle

Trays Column

Barrel (ISO)

Tank 4

Double Wall Tank

Wastewater Treatment

Packing Column

Gas bottle

Open tank

Mode Filter

Filter

Fixed bed air Filter

Mode Filter indication

Filter 2

Motor

Vessels

Vertical Vessel

Mixing Vessel

Drum

Column

Tray Column

Fluidized Bed Column

Onion Tank

Bin

Filters

HE

PA

BIO

Biological Filter

High efficiency Filter

Primary Filter

Mid-effect Filter

ION

HEPA gas Filter

Ionexchanger Filter

Oxygen-enriched Filter

Filter

Gas Filter

Press Filter

Liquid Filter

Filter

Highpass Filter

Fixed bed liquid

Filter

Cartridge gas Filter

Lowpass Filter

Bandpass Filter

Rotary liquid

Filter

Roll air Filter

Air Filter

Filter 2

Air Filter 2

Rotary Filter

The Filter

Suction Filter

Liquid ring

Compressor

Axial Compressor

Centrifugal

Compressor

Air Compressor

Compressors

Compressor silencers

Compressor

Ejector Compressor

Compressor 2

Piston Compressor

Compressor,

Vacuum pump

Ring Compressor

Rotary Compressor

2

Centrifugal

Compressor 2

AC air Compressor

Centrifugal

Compressor

Roller vane

Compressor

Rotory

Compressor 3

Centrifugal

Compressor 3

Screw Compressor

Reciprocating

Compressor 3

Rotory Compressor

and silencers

Selectable

Compressor

Turbo Compressor

Spray Cooler

Shell and Tube

Heat 3

Reboiler

Oil Burner

Single Pass Heat

Exchanger

Fired Heater

Diaphragm

Compressor

Rotary Compressor

T

Heat Exchanges

TEMA TYPE BEM

TEMA TYPE BEU

Cooler

Forced-draft

Cooling Tower

Single Pass Heat

Exchanger

TEMA TYPE AEM

TEMA TYPE AEL

Air-blown Cooler

Induced-draft

Cooling Tower

Vertical Turbine

Double Pipe Heat

Exchanger

Induced Flow Air

Cooler

TEMA TYPE NEN

TEMA TYPE BKU

Plate Exchanger

Plate and Frame

Heat Exchanger

Heat Exchanger

Fin-fan Cooler

Hairpin Exchanger

Condenser

Electric Heater

Spiral Heat

Exchanger

Extractor Hood

Heat Exchanger 2

Heat Exchanger 3

Straight Tubes

Heat Exchanger

Heater

Spiral Heat

Exchanger 2

Hose reel

Air Cooled

Exchanger

Light Water Station

Briquetting

Machine

Combustion

Chamber

U-Tube Heat

Exchanger

Silencer

U-tube Heat

Exchanger

Thin-Film

Evaporator

Reboiler Heat

Exchanger

Boiler

Vent

Coil Tubes Heat

Exchanger

Finned Tubes

Heat Exchanger

Exchanger

Dryer

Floating Head

Heat Exchanger

Condenser

Cooling Tower

Cooling Tower 2

Plate Heat

Exchanger

Shell and Tube

Heat

Kettle Heat

Exchanger

Cooling Tower 3

Shell and Tube

Heat 2

Dryer

Roller Conveyor

Belt Dryer

Generator

Heat Consumer

Fluidized Bed

Dryer

Motor Generator

Drying Oven

Spray Dryer

Dryers

Moving Shelf Dryer

General

Crossflow

Inducted Draft

Screen

Plate Tower

Fluidized Reactor

Fluid Catalytic

Cracking

Counterflow

Forced Draft

Boom Loader

Packed Tower

Alkylation

Fluid Coking

Chimney Tower

Hyperbolic

Automatic Stoker

Hydrocracking

Furnace

Electric Motor

Furnace

Tubular

Hydrodesulfurization

Hydrocracking

Transport

Agitator, Turbine

Agitator, Disc

Mixers

In-line Mixer

Mixer

Various Mixers

Various Mixers

Agitator, Propeller

Various Mixers 2

Agitator, Anchor

Agitator, Helical

Agitator,

Cross-beam

Agitator, Stirrer

Agitator, Impeller

Medium Crushers

Various Crushers

Jaw Crusher

Hammer Crusher

Roller Crusher

Impact Crusher

Cone Crusher

Agitator, Gat Paddle

Crushers

Crusher

Coarse Crusher

Vibration Crusher

Hammer Crusher

Fine Crushers

Centrifuges

Centrifugal Pump

Centrifugal

Compressor

T

Centrifugal

Compressor 2

Centrifugal

Compressor 3

Centrifuge Screw

Centrifuge, Pusher

Centrifuge,

Solid Shell

Centrifuge Screw,

Perforated Shell

Centrifugal Pump

Centrifugal Pump 4

Centrifuge, High

Speed

Centrifuge,

Separator disc

Centrifugal Pump 2

Centrifugal Fan

Centrifuge,

Skimmer

Centrifuge

Centrifugal Pump 5

Motor-operated

Valve

Diesel Motor

Electric Motor

Centrifuge,

Perforated Shell

Centrifugal Blower

Centrifugal Pump 3

Motors

M

Motor

AC Motor

Generator

Step Motor

Motor Generator

AC Generator

Motor-driven

Turbine

DC Motor

Gear

DC Generator

Motor

Impact Separator

Injector

Elevator

Elevator 2

Vertical Shaping

Machines

Gravity Separator

Reducer

Z-form Elevator

Skip Hoist

Pelletizing Disc

Rupture Disc

Lift

Conveyor

Cyclone Separator

Piston Press

Hoists

Conveyor,

Chain, Closed

Roller Press

Turbine

Peripheral

Electromagnetic

Separator

Electrostatic

Precipitator Separator

Viewing Glass

Viewing Glass

with Lighting

Conveyor,

Screw, Closed

Aerator with

Sparger

Crane

Roller Conveyor

Cyclone

Solidifier

Back Draft

Damper

Bag Filling

Machine

Conveyor

Curved Gas Vent

Permanent

Magnet

Spray Nozzle

Rotary Table

Feeder

Box Truck

Overhead

Conveyor

Belt Skimmer

Firing System

Manual Forklift

Screw Conveyor

Screening

Flame Arrestor

Scraper

Conveyor

Truck Forklift

Palletizer

Bucket Elevator

Proportional

Feeder

Piston Extruder

Shaping Machines

Industrial Truck

Rotary Valve

Feeder

Rolling Bin Truck

Metering

Proportional Feeder

Ship

Elevator 1

Screw Extruder

Shaping Machines

Gas Flare

Horizontal Shaping

Machines

Double

Containment

Electrically

Insulated

Expansion Joint

Flange

In-line Mixer

Hose

End Caps

Separator

Chimney

Conveyor,

Vibrating, Closed

Piping and Connecting Shapes

Major Pipeline

Top to Top

Connect Pipeline

Sonic Signal

Major Straight

Line Pipe

Nuclear

Straight Line Pipe

Pneumatic

Control

Battery Limit Line

S

Bursting Disc

Flame Arrester

Pneumatic Binary

Signal Line

Drain Silencer

Drip Pan Elbow

Heat Trace

Exhaust Silencer

Electric Binary

Signal Line

Flange

Electric Binary

Signal Line

Sleeve Joint

One-to-Many

General Joint

Mid Arrow

Multi-Lines Elbow

Y-strainer

Diverter Valve

Y-type Strainer

Union

Exhaust Head

Damper

Socket Weld

Triangle

Separator

Breakthrough

Screwed

Connection

Triangle

Separator 2

Tundish

Butt Weld

Flanged Dummy

Cover

Open Vent

Electrical Bounded

Syphon Drain

Slope

Requirements Line

Hydrant

Welded

Connection

Soldered/

Solvent

Swivel Joint

Reducer

Pulsation

Dampener

Blind Disc

D

Detonation Arrestor

F

Flame Arrestor

S

In-line Silencer

S

T

Basket Strainer

Cone Strainer

Expansion Joint 2

Orifice Plate

Pilot Operated

Relief Valve with

Renote Sensor

Coupling

Electrically

Insulated

Flame Arrestor

Detonation-Proof

Flame Arrestor

Vent Silencer

Steam Trap

Fire-Resistant

Flame Arrestor

DS

Desuperheater

Open Disc

Bursting Disc

Clamped Flange

Coupling

Explosion-Proof

Flame Arrestor

Duplex Strainer

Spectacle Blind

Rotary Valve

Orifice

Compensate

Mechanical Link

Interchangeable

Blind

Basket Strainer

Breather

Orifice Plate

Multi-Lines

Removable Spool

Strainer

Side by Side

Traced Line

Bell Mouth

Breather

Electronic Serial

Top-Bottom

Flow Indicator

End Cap 2

Electric Signal

Line

H

Flexible Hose

Ejector or

Eductor

Exhaust Head

Fire-Resistant, ExplosionProof Flame Arrestor

Valve Manifold



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