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

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.

Automationforum.Co

AutomationForum.In

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

Pressure Controller

Behind a Local Control

Unit Control Panel

Indicator 2

Indicator 3

Indicator 4

Indicator 5

Odometer

FT Pressure Gauge FR

Temp Indicator

105 PRC

Temp Transmitter

Temp Recorder Temp Controller

Flow Indicator Flow Transmitter

Thermometer

Shared Indicator

Displayed Configurable

Not Gate Correcting Element

LT 65

Diamond

Pressure Indicating

Flow Controller

Level Indicator Pressure Indicator

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

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

Level Recorder

Rotary Meter

And Gate

Support Skirt

Hand-Operated Gate Valve

Check Valve 2

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

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

Rotary Valve

Control Valve

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

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

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

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

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

Detonation Arrestor

Flame Arrestor

In-line Silencer

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