piping inst symbols

8/3/2019 Piping Inst Symbols

1/17

APPENDIX 1

1. Miscellaneous Equipment (GROUP U)

MU001

Pig Launcher / Receiver(Vertical)

MU002

Pig Launcher / Receiver(Horizontal)

MU003

Wellhead

MU004

Flare


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APPENDIX 1

2. Atmospheric Storage (GROUP T)

MT001

Open Tank

MT002

Conical Roof Tank

MT003

Floating Roof Tank

MT004

Fibre Glass Tank

MT005

Dome Roof Tank

MT006

Sludge Sump Tank

MT007

Spheroid


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APPENDIX 1

2. Tanks, Pressure Storage Vessels & Columns (GROUP T)

MT008

Tray column Basic

symbol

MT009

Fluid Contacting VesselBasic Symbol

MT010

Packed column Basic

symbol

MT011

Knock-Out Drum (withdemister pad)

MT012

Fuel Gas Scrubber


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APPENDIX 1

2. GROUP T

MT013

Vessel, Basic Symbol

MT014

Vessel with dome andsump

MT015

Sphere

MT016

Test / ProductionSeparator

MT017

Vessel with dome

MT018

K.O. Drum andcondensative separator

MT019

Sump Casing

MT020

Sump Tank

MT021

Collection Tank


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APPENDIX 1

3. Heat Transfer Equipment (GROUP E)

ME001

Air cooled heatexchanger basic symbol

ME002

HeaterBasic symbol

ME003

Cooler condenserBasic symbol

ME004

Heat Exchanger

Basic symbol

ME005

Cooling Coil

Basic Symbol

ME006

Heating CoilBasic symbol

ME007

Heat Exchanger/

cooler/condenser withfloating head

ME008

Heat Exchanger/

cooler/condenserU-Tube

ME009

Heat Exchanger/cooler/condenserfixed tube sheet

ME010

Cooler / condenser withfloating head and cover

plate

ME011

Vertical heat exchanger/ re-boiler tubular

steam generator / cooler/ condenser fixed tube

sheet

ME012

Vertical heat exchanger

/ re-boiler tubularsteam generator / cooler

/ condenser floating

headME013

Horizontal re-boiler fixedtube sheet

ME014

Kettle-type Vaporizerfloating head

ME015

Kettle-type Vaporizerfloating head

ME016

Kettle-type Vaporizerfixed tube sheet


6/17

Heat Transfer Equipment (GROUP E) Contd/-

ME017

Plate heat exchanger

ME018

Double pipe heatexchanger

ME019

Box cooler

ME020

Air-cooled heatexchanger forced

draught

ME021

Air-cooled heat

exchanger forceddraught, with automatic

variable pitch fans

ME022

Air-cooled heatexchanger, induced

draught

ME023

Air-cooled heat

exchanger, forceddraught, with automatic-

variable pitch fans

Heat Exchanger/cooler/condenser

U-Tube

ME024

Propane Evaporator

ME025

Lube Oil Cooler

ME026

Gas Chiller

ME027

Tube Exchange

ME028

Fuel Gas ElectricalHeater

ME029

Coil Bank Basic Symbol

ME030

Furnace, Heater BasicSymbol


7/17

5. Jets (GROUP J)

MJN001

Ejector / Injector /Educator, Basic Symbol

MJN002

Air Ejector

MJN003

Safety Shower and Eyebath


8/17

6. Compressors, Blowers, Fans And Pumps (GROUP K)

MK001

Compressor, Blower FanBasic Symbol

MK002

Centrifugal pump orcentrifugal fan

MK003

Rotary CompressorSingle-StageO: Centrifugal

A: Axial FlowP: Positive

displacement

MK004

Blower or Fan

MK005

Positive Displacement

Pump (Reciprocating)

MK006

Centrifugal Compressor,

Turbine

MK007

Blower, motor driven

MK008

Compressor:Reciprocating (Basic

Symbol)

MK009

Two-Stage, Electric MotorDriven Reciprocating

Compressor

MK010

Start-up Air Compressor

MK011

Fuel Oil Pump

MK012

Jockey Pump

MK013

Hand Pump

MK014

Water Pump

MK016

Gas Operated

Hydraulic Pump

MK016

Submersible multistagecentrifugal pump (motor

driven) in well

MK017

Post Pump

MK018

Pneumatic Operated

reciprocating Pump

MK019

Vacuum Pump


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7. Motors, Turbines & Generators

M0-001

Electric Motor

MO-001A

Electric Motor

MO-002

Steam Turbine

MO-003

Alternator

MO-004

Gas Turbine

MO-005

Diesel Generator

MO-006

Turbo Gas Generator

MO-007

Turbo Generator


10/17

APPENDIX -1

8. PIPING8.1 Pipes (GROUP L)

ML001

Main Process Line

ML002

Secondary Process Line& Utility Lines

ML003

Existing Line

ML004

Existing Line(underground)

ML005

Future Line

ML006

Match Line or

Battery Limits

ML007

Monitor Nozzle StraightTip not adjustable

ML008

Monitor with adjustablenozzle 250 GPM @ 100

psi

ML009

Blind Flange

ML010

Plugged End

ML011

Capped End

ML012

FALL

Slopping Line

ML013

Flexible Hose

ML014

Hammer Blind

ML015

Spade

ML016

Spectacle Blind

ML017

Hose Connection

ML018

Purge Connection

ML019

AG-Above GroundUG-Under Ground

ML020

Change In Piping Class

ML021

Chemical Seal

ML022

Self Sealing HoseCoupling

ML023

Hose Reel

ML024

MONOBLOCConnector or Insulation

Flange set

UG AG A1 B1PC


11/17

ML025

Electrically Traced Line

ML026

Steam Traced Line

ML027

Insulated & Traced

ML028

Insulated Line

ML029

Jacketed Line

ML030

T Type Strainer

ML031

Y Type Strainer

ML032

Inline (Temporary)Strainer

ML033

Air Intake Filter

ML034

Duplex Filter

ML035

Basket Strainer or Filter

ML036

Flame Arrestor

ML037

Flame Arrestor(Vessel Mounted)

ML038

Rupture Disc for

Pressure Relief

ML039

Rupture Disc for

Vacuum

ML040

Silencer

ML041

Sight Glass

ML042

Flow Glass

ML043

Tundish

ML044

Automatic Drain

ML045

Continuous Drainer

ML046

Open Drain Gully withLiquid Seal

ML047

Deck Drain Gully

ML048

Plate Type Expansion


12/17

ML049

Expansion Bellow

ML050

Spray Device

ML051

Spray Nozzle

ML052

Spray Nozzle

ML053

Spray Nozzle

ML054

Fire Hydrant

ML055

Safety Shower &Eyewash

ML056

Deluge

ML057

Exhaust Head

ML058

Steam Exhaust Head

ML059

Open Vent

ML060

Vent with WeatherHood

ML061

xxxxxxxxx

ML062

0

Air Vent VAC/Breaker

ML063

Battery Limit

ML064

Hose Station

ML065

Termination Point

ML066

Liquid Trap / Steam

ML067

Siphon

ML068

Special Piping item

ML069

Slope

ML070

Self Draining

ML071

Flow StraighteningVanes

ML072

Line Mixer


13/17

ML073

Weir

ML074

Vortex Breaker

ML075

Vortex Breaker withVertical Upstand

ML076

Vortex Meter

ML077

Removal Spool

ML078

Flume

ML079

Bursting / Rupture Disc

ML080

Pulsation Damper

ML081

Louvers

ML082

Ejector or Eductor

ML083

Sample Cooler

ML084

Sample Connection

ML084A

Sample Connection

ML085

Line Continuation onto

Another Drawing

ML086

Chemical Injection Point

ML087

Wet Barrel FireHydrant with 2

Outlets & 1-4 Outlet W/curb Box

Valve

ML088

Open Head, FireProtection System

ML089

Closed head, FireProtection System

ML090

Eyewash

ML091


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ML092

Trap Drain

ML093

Trapped Vent

ML094

Steam Trap Assembly

ML095

Gas Trap

ML096

Sand Trap

ML097 ML098

Cycle Separator

ML099


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APPENDIX -1

8.2 Valves (GROUP V)

MV-100

Butterfly Valve

MV-101

Post Indicating Butterfly

Valve

MV-102

Needle Valve

MV-103

Plug Valve

MV-104

Wedge Plug Valve

MV-105

Valve with Plug

MV-106

3 Way Valve

MV-107

CSO (CSC)LO (LC)

Valve Carseal Open

(OR Carseal Close)Valve Locked Open (OR

Locked Close)

MV-108

NO (NC)

Valve Normally Opened

(OR Normally Closed

MV-109

TSO

Tight Shut Off

MV-110

FLO

Locked in fully Open

Position

MV-111

Diaphragm Valve

MV-112

Angle Valve

MV-113

Adjustable Choke(Manual)

MV-114

4 way Valve

MV-115

PSV-with 2 Outlet

MV-116

Excess Flow Check

Valve

MV-117

Parallel Slide Valve

MV-118

Slide Valve (Manual)

MV-119

Slide Valve (Motorized)


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MV-120

Straight Through Bleedor Relief Valve

MV-121

Pinch Valve

MV-122

Relief Valve(Pilot Operated)

MV-123

Automatic Air Vent

MV-124

Air Release Valve

MV-125

Boiler Blow down Valve

MV-126

Test Ring(W/Bleed Valve)

MV-127

Test Ring

MV-128

Flush Bottom TankValve

MV-129

Knife Valve

MV-130

Foot Valve & Strainer

MV-131

Interlock Device

MV-132

Ball Valve

MV-133

Gate Valve

MV-134

Motor Operated Gate

Valve

MV-135

Check Valve

MV-136

Screw Down CheckValve

MV-137

Automatic Re-circulationCheck Valve

MV-138

Globe Valve

MV-139

Quick Opening GlobeValve


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9. Gravity And Mechanical Separators (GROUP S)

MS001

Filter, Basic symbol

MS002

Centrifuge, Basic

Symbol

MS003

Decanting Centrifuge

MS004

Bowl Centrifuge

MS005

Cyclone orHydrocylone

MS007

Cartridge Filter

MS008

Basket Filter

MS010

Screen

MSN001

Filter & Coalescer

MSN002

Filter

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