Free Guide to Pipe Marking & Labeling Compliance | LabelMax
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Sep 22, 2025
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About This Presentation
This free guide explains everything you need to know about pipe marking and labeling for workplace compliance. It outlines OSHA and ANSI standards, showing how proper pipe identification improves safety, reduces accidents, and keeps facilities running smoothly. Inside, you’ll find clear guidance o...
Slide Content
Pipe Marking
Guide
A complete guide to marking pipes
in your facility to meet OSHA and
ANSI/ASME standards.
Guide
A complete guide to marking pipes
in your facility to meet OSHA and
ANSI/ASME standards.
2Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Table of Contents
1Introduction 3
2Where Pipe Labels Should Go 4
3Check Your Facility 6
4Label Formatting Requirements 7
5Industry-Specific Pipe Labeling Requirements 13
6How to Place Labels for Maximum Visibility 14
7How to Make Pipe Labels 15
LabelMax
17475 SW 63rd Ave, Lake Oswego, OR 97035
1-855-484-7266
Table of Contents
1Introduction 3
2Where Pipe Labels Should Go 4
3Check Your Facility 6
4Label Formatting Requirements 7
5Industry-Specific Pipe Labeling Requirements 13
6How to Place Labels for Maximum Visibility 14
7How to Make Pipe Labels 15
LabelMax
17475 SW 63rd Ave, Lake Oswego, OR 97035
1-855-484-7266
3Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Introduction
Clearly labeling pipes in industrial, commercial, and institutional settings is a simple
yet powerful step toward creating a safer and more efficient work environment.
When piping systems are marked correctly, the risk of injury or property damage
due to confusion or accidents is significantly reduced.
This guide will walk you through essential practices for establishing an effective
visual pipe marking system that enhances both safety and workflow in your facility.
The Importance of Pipe Identification
When pipes go unlabeled—or are improperly labeled—it can lead to serious safety
concerns.
Workers, emergency personnel, and even
visitors may be unaware of the materials
flowing through a pipe, which increases the
chance of mishandling or underestimating
potential hazards. Misidentifying a pipe’s
contents can result in dangerous situations
or delays in responding to emergencies.
Beyond safety, unclear labeling can slow down
maintenance and repairs, as staff must take
extra steps to identify what’s inside a pipe.
This can disrupt operations and reduce overall
productivity.
In many sectors, compliance with specific
pipe labeling standards is mandatory. For
example, hospitals must mark medical gas
lines according to healthcare regulations,
while ships follow marine-specific color codes.
For most facilities, the ASME/ANSI A13.1
standard is the benchmark to follow. This
standard requires that pipes be labeled with
their contents and any associated hazards.
Adhering to it not only improves safety—it
also helps ensure compliance with OSHA
standards, including regulation 29 CFR
1910.261(a)(3)(ii).
Introduction
Clearly labeling pipes in industrial, commercial, and institutional settings is a simple
yet powerful step toward creating a safer and more efficient work environment.
When piping systems are marked correctly, the risk of injury or property damage
due to confusion or accidents is significantly reduced.
This guide will walk you through essential practices for establishing an effective
visual pipe marking system that enhances both safety and workflow in your facility.
The Importance of Pipe Identification
When pipes go unlabeled—or are improperly labeled—it can lead to serious safety
concerns.
Workers, emergency personnel, and even
visitors may be unaware of the materials
flowing through a pipe, which increases the
chance of mishandling or underestimating
potential hazards. Misidentifying a pipe’s
contents can result in dangerous situations
or delays in responding to emergencies.
Beyond safety, unclear labeling can slow down
maintenance and repairs, as staff must take
extra steps to identify what’s inside a pipe.
This can disrupt operations and reduce overall
productivity.
In many sectors, compliance with specific
pipe labeling standards is mandatory. For
example, hospitals must mark medical gas
lines according to healthcare regulations,
while ships follow marine-specific color codes.
For most facilities, the ASME/ANSI A13.1
standard is the benchmark to follow. This
standard requires that pipes be labeled with
their contents and any associated hazards.
Adhering to it not only improves safety—it
also helps ensure compliance with OSHA
standards, including regulation 29 CFR
1910.261(a)(3)(ii).
4Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Where Pipe Labels
Should Go
Before you start labeling pipes, it’s important to know where labels are actually needed.
You only need to place pipe labels in four main spots:
Every 25 to 50 feet
along straight runs of pipe
At every change in direction
(label both sides of the turn)
Where pipes go through walls or
floors (label both sides)
Next to all valves and flanges
(the parts where pipes connect or can
be opened/closed)
MARKERMARKER
MARKER
MARKER
MARKER MARKER
WALL
MARKER MARKER
MARKER
Where Pipe Labels
Should Go
Before you start labeling pipes, it’s important to know where labels are actually needed.
You only need to place pipe labels in four main spots:
Every 25 to 50 feet
along straight runs of pipe
At every change in direction
(label both sides of the turn)
Where pipes go through walls or
floors (label both sides)
Next to all valves and flanges
(the parts where pipes connect or can
be opened/closed)
MARKERMARKER
MARKER
MARKER
MARKER MARKER
WALL
MARKER MARKER
MARKER
5Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Although ASME/ANSI standards recommend labeling all pipes, labeling is
especially important in the following situations:
If the pipe carries a dangerous or hazardous
substance
If the pipe’s contents could affect how people
respond in an emergency
If people don’t know the direction the material is
flowing or where it’s going
If the pipe needs to be shut off or redirected
during regular maintenance
Labeling in these situations helps keep everyone safe and makes your facility
easier to manage.
Although ASME/ANSI standards recommend labeling all pipes, labeling is
especially important in the following situations:
If the pipe carries a dangerous or hazardous
substance
If the pipe’s contents could affect how people
respond in an emergency
If people don’t know the direction the material is
flowing or where it’s going
If the pipe needs to be shut off or redirected
during regular maintenance
Labeling in these situations helps keep everyone safe and makes your facility
easier to manage.
6Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com6Pipe Marking Guide
Check Your Facility
Now that you know the basic rules for pipe labeling, it’s time
to look around your facility and check out your pipe systems.
Walk through the building and use blueprints if you have
them—these can help you find pipes that might be hidden or
hard to see.
As you walk through, write down the following:
What’s inside each pipe
Which way the material is flowing
Where the material ends up
Where the pipe changes direction
Any dangers related to what’s inside the pipe
Also, take a closer look at any labels that are already there:
Are they current and still correct?
Are they clean, easy to read, and in good shape?
Think about spots where labels might be missing:
Have any new pipes been installed?
Is there any new equipment that uses pipes?
Has any repair work been done that might have changed or
removed labels?
Doing a full check like this will help you spot problems and make
sure your pipe labeling system keeps everyone safe and informed.
Check Your Facility
Now that you know the basic rules for pipe labeling, it’s time
to look around your facility and check out your pipe systems.
Walk through the building and use blueprints if you have
them—these can help you find pipes that might be hidden or
hard to see.
As you walk through, write down the following:
What’s inside each pipe
Which way the material is flowing
Where the material ends up
Where the pipe changes direction
Any dangers related to what’s inside the pipe
Also, take a closer look at any labels that are already there:
Are they current and still correct?
Are they clean, easy to read, and in good shape?
Think about spots where labels might be missing:
Have any new pipes been installed?
Is there any new equipment that uses pipes?
Has any repair work been done that might have changed or
removed labels?
Doing a full check like this will help you spot problems and make
sure your pipe labeling system keeps everyone safe and informed.
7Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Label Formatting
Requirements
Color Guidelines
Content Type Description Required Colors Example
FLAMMABLE
Fluids that are a vapor or produce
vapors that can ignite and continue
to burn in air.
Black on Yellow HYDROGEN
COMBUSTIBLE
Fluids that may burn but are not
flammable.
White on Brown ACETIC ACID
TOXIC/CORROSIVE
Fluids that are corrosive or toxic or will
produce corrosive or toxic substances.
Black on Orange NITRIC ACID
FIRE QUENCHING
Water and other substances used
in sprinkler fire-fighting piping systems.
White on Red HALON
OTHER WATER
Any other water except for water
used in sprinkler & fire-fighting
piping systems.
White on Green
BOILER WATER
COMPRESSED AIR
Any vapor or gas under pressure
that does not fit a category above.
White on Blue
COMPRESSED AIR
OTHER Definable by user. White on Purple OTHER
OTHER Definable by user. White on Black OTHER
OTHER Definable by user. White on Black OTHER
OTHER Definable by user. White on Gray OTHER
Label Formatting
Requirements
Color Guidelines
Content Type Description Required Colors Example
FLAMMABLE
Fluids that are a vapor or produce
vapors that can ignite and continue
to burn in air.
Black on Yellow HYDROGEN
COMBUSTIBLE
Fluids that may burn but are not
flammable.
White on Brown ACETIC ACID
TOXIC/CORROSIVE
Fluids that are corrosive or toxic or will
produce corrosive or toxic substances.
Black on Orange NITRIC ACID
FIRE QUENCHING
Water and other substances used
in sprinkler fire-fighting piping systems.
White on Red HALON
OTHER WATER
Any other water except for water
used in sprinkler & fire-fighting
piping systems.
White on Green
BOILER WATER
COMPRESSED AIR
Any vapor or gas under pressure
that does not fit a category above.
White on Blue
COMPRESSED AIR
OTHER Definable by user. White on Purple OTHER
OTHER Definable by user. White on Black OTHER
OTHER Definable by user. White on Black OTHER
OTHER Definable by user. White on Gray OTHER
8Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Label and Text Size Guidelines
The pipe label size should correlate with the size of the pipe. Larger pipes will
require larger labels.
Labels sized in accordance with ASME/ANSI guidelines will be easy to see and read
from the right distance. That means workers and emergency responders can spot
important informaton quickly and safely.
Pipe Diameter Min. Label Size Min. Text Height
0.75” to 1.25”
(19 - 32 mm)
1”x 8”
(25 x 203 mm)
0.5”
(13 mm)
1.25” to 2.5”
(38 - 51 mm)
1”x 8”
(25 x 203 mm)
0.75”
(19 mm)
2.5” to 8”
(64 - 203 mm)
2” x 12”
(51 x 305 mm)
1.25”
(32 mm)
8” to 10”
(203 - 254 mm)
3” x 24”
(102 x 610 mm)
2.5”
(64 mm)
10”+
(Over 254 mm)
4” x 32”
(153 x 813 mm)
3.5”
(89 mm)
Label and Text Size Guidelines
The pipe label size should correlate with the size of the pipe. Larger pipes will
require larger labels.
Labels sized in accordance with ASME/ANSI guidelines will be easy to see and read
from the right distance. That means workers and emergency responders can spot
important informaton quickly and safely.
Pipe Diameter Min. Label Size Min. Text Height
0.75” to 1.25”
(19 - 32 mm)
1”x 8”
(25 x 203 mm)
0.5”
(13 mm)
1.25” to 2.5”
(38 - 51 mm)
1”x 8”
(25 x 203 mm)
0.75”
(19 mm)
2.5” to 8”
(64 - 203 mm)
2” x 12”
(51 x 305 mm)
1.25”
(32 mm)
8” to 10”
(203 - 254 mm)
3” x 24”
(102 x 610 mm)
2.5”
(64 mm)
10”+
(Over 254 mm)
4” x 32”
(153 x 813 mm)
3.5”
(89 mm)
9Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Using Abbreviations
for Pipe Labels
ABED Aux. Building Equipment Drains
ABEDT Aux. Building Equipment Drain Tank
ABFD Aux. Building Floor Drain
ABFDT Aux. Building Floor Drain Train
ACB Air Circuit Breaker
ACK Acknowledge
ACT Actuate
ADJ Adjust
AFW Auxiliary Feedwater
ALM Alarm
AMB Ambient
ANAL Analyzer
AO(V) Air Operated (Valve)
AVG Average
BA Boric Acid
BAR Bar Graph
BAT Boric Acid Tank / Battery
BD Blow Down
BIST Bistable
BIT Boron Injection Tank
BKR Breaker
BL Black Liquid
BOP Balance of Plant
BTM Bottom
BTU British Thermal Unit
BUP Backup
C Centigrade (aka. Celsius)
C/CB Condensate/Cond. Booster
C1M Cumulative One Minute
Sometimes, the name of what’s inside a pipe might be too long to fit on the label.
In those cases, use standard abbreviations from the list below to keep the label
clear and easy to read.
CAB Cabinet
CAL Calibration/Calorie
CAUS Cause
CCW Component Cooling Water/ Closed Cooling Water
CD Condensate
CDB Condensate Booster
CDT Chemical Drain Tank
CHAM Chamber
CHAN Channel
CHNG Change
CHRG Charging
CJB Cold Junction Box
CKT Circuit
CL Cold Leg
CLNG Cooling
CMPT Computed
CNMT Containment
COM Common
COMP Component
CONC Concentration
COND Condenser/Condensate
CONDTY Conductivity
CONT Controller
CONT ROD Control Rod
CONTR Control
COR Correction
CORR Correlation
COUNT Count
CPM Counts Per Minute
Using Abbreviations
for Pipe Labels
ABED Aux. Building Equipment Drains
ABEDT Aux. Building Equipment Drain Tank
ABFD Aux. Building Floor Drain
ABFDT Aux. Building Floor Drain Train
ACB Air Circuit Breaker
ACK Acknowledge
ACT Actuate
ADJ Adjust
AFW Auxiliary Feedwater
ALM Alarm
AMB Ambient
ANAL Analyzer
AO(V) Air Operated (Valve)
AVG Average
BA Boric Acid
BAR Bar Graph
BAT Boric Acid Tank / Battery
BD Blow Down
BIST Bistable
BIT Boron Injection Tank
BKR Breaker
BL Black Liquid
BOP Balance of Plant
BTM Bottom
BTU British Thermal Unit
BUP Backup
C Centigrade (aka. Celsius)
C/CB Condensate/Cond. Booster
C1M Cumulative One Minute
Sometimes, the name of what’s inside a pipe might be too long to fit on the label.
In those cases, use standard abbreviations from the list below to keep the label
clear and easy to read.
CAB Cabinet
CAL Calibration/Calorie
CAUS Cause
CCW Component Cooling Water/ Closed Cooling Water
CD Condensate
CDB Condensate Booster
CDT Chemical Drain Tank
CHAM Chamber
CHAN Channel
CHNG Change
CHRG Charging
CJB Cold Junction Box
CKT Circuit
CL Cold Leg
CLNG Cooling
CMPT Computed
CNMT Containment
COM Common
COMP Component
CONC Concentration
COND Condenser/Condensate
CONDTY Conductivity
CONT Controller
CONT ROD Control Rod
CONTR Control
COR Correction
CORR Correlation
COUNT Count
CPM Counts Per Minute
10Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Using Abbreviations for Pipe Labels
CPU Central Processing Unit
CPUS Central Processing Units
CR Control Room
CRB Chemical Recovery Boiler
CROM Control Rod Drive
CS Mechanism
CSR Cable Spreading Room
CST Condensate Storage Tank
CW Circulating Water
CWP Circulating Water Pump
CYL Cylinder
D/G Diesel Generator
DEG Degrees
DEMIN Demineralizer
DET Detector
DEV Deviation
DIV Division
DO Diesel Fuel Oil
DOT Dirty Oil Tank
DSCH Discharge
DT Delta Temperature
ECCS Emergency Core Cooling System
EDT Equipment Drain Tank
EFCT Effect
EFLNT Effluent
ЕНС Electro Hydraulic Control
ELEC Electrical
EQ Equipment
EQUIP Equipment
ES Extraction Steam ESS Essential Service
ESF Engineered Safety Feature
EXH Exhaust/Exhauster
EXPANS Expansion
EXTR Extracted Extractor/ Extraction
F Fahrenheit
FCV Flow Control Valve
FD Forced Draft
FH Fuel Handling
FLW Flow
FO Fuel Oil
FREQ Frequency
FRNT Front
FW Feed Water
GOV Governor
GPM Gallons Per Minute
GRP Group
GSC Gland Steam Condenser
GV Governor Valve
HG(A) Mercury (absolute)
HGHT Height
HIDP High Differential Pressure
HL Hot Leg
HOV Hydraulic Operated Valve
HP High Pressure
HR(S) Hour
HRSG Heat Recovery Steam Generator
HT RT Heat Rate
HTNG Heating
HU/CD Heatup/Cooldown
HUT Hold up Tank
HYD Hydraulic
I/P Current to Pressure
I/V Current to Voltage
IA Instrument Air
ID Identification/Inside Diameter
INBO Inboard
INC Increase
INF Influent
INIT Initial
INL Inlet
INSERTIN Insertion
INST Instrument/Instantaneous
Using Abbreviations for Pipe Labels
CPU Central Processing Unit
CPUS Central Processing Units
CR Control Room
CRB Chemical Recovery Boiler
CROM Control Rod Drive
CS Mechanism
CSR Cable Spreading Room
CST Condensate Storage Tank
CW Circulating Water
CWP Circulating Water Pump
CYL Cylinder
D/G Diesel Generator
DEG Degrees
DEMIN Demineralizer
DET Detector
DEV Deviation
DIV Division
DO Diesel Fuel Oil
DOT Dirty Oil Tank
DSCH Discharge
DT Delta Temperature
ECCS Emergency Core Cooling System
EDT Equipment Drain Tank
EFCT Effect
EFLNT Effluent
ЕНС Electro Hydraulic Control
ELEC Electrical
EQ Equipment
EQUIP Equipment
ES Extraction Steam ESS Essential Service
ESF Engineered Safety Feature
EXH Exhaust/Exhauster
EXPANS Expansion
EXTR Extracted Extractor/ Extraction
F Fahrenheit
FCV Flow Control Valve
FD Forced Draft
FH Fuel Handling
FLW Flow
FO Fuel Oil
FREQ Frequency
FRNT Front
FW Feed Water
GOV Governor
GPM Gallons Per Minute
GRP Group
GSC Gland Steam Condenser
GV Governor Valve
HG(A) Mercury (absolute)
HGHT Height
HIDP High Differential Pressure
HL Hot Leg
HOV Hydraulic Operated Valve
HP High Pressure
HR(S) Hour
HRSG Heat Recovery Steam Generator
HT RT Heat Rate
HTNG Heating
HU/CD Heatup/Cooldown
HUT Hold up Tank
HYD Hydraulic
I/P Current to Pressure
I/V Current to Voltage
IA Instrument Air
ID Identification/Inside Diameter
INBO Inboard
INC Increase
INF Influent
INIT Initial
INL Inlet
INSERTIN Insertion
INST Instrument/Instantaneous
11Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Using Abbreviations for Pipe Labels
INT Internal
INTERM Intermediate
IOD lodine
ISOL Isolation
JUNCT Junction
K Kilo
LNG Long/Liquified Natural Gas
LO FLW Low Flow
M/G Motor Generator Sets
MAINT Maintenance
MAX Maximum
MCR Main Control Room
MFP Main Feed Pump
MIN Minutes/Minimum
MOIST Moisture
MPH Miles Per Hour
MPS Miles Per Second
MS Main Steam/Moisture Separator
MSIV Main Steam Isolation Valve
MSR Moisture Separator Reheater
MTR Motor
MU Makeup
MVBL Movable
NAOH Sodium Hydroxide
NAR Narrow
NAR RNG Narrow Range
NBL Noble
NEG Negative
NEUT Neutron
NIS Nuclear Instrumentation System
NR Narrow Range
NUC Nuclear
OG Off-Gas
OOS Out of Service
OP Over Pressure
OPER Operator/Operating
OT Over Temperature
ОТ-ОР Over Temp-Over Pressure
OUT Output
OUTBD Outboard
OUTLT Outlet
OVERLD Overload
OVERTEMP Over Temperature
OVRPWR Overpower
PART Partial
PARTIC Particulate
PCT Percent
PCV Pressure Control Valve
PENET Penetration
PMG Permanent Magnet Generator
PNEU Pneumatic
PORV Power Operated Relief Valve
POS Positive
POT Potentiometer
PPB Parts per Billion
PPM Parts per Million
PR58 Process Radiation Monitor 58
PREAMP Preamplifiers
PRG Purge
PRI Primary
PROC Process
PRT Pressurizer Relief Tank
PS Power Supply
PSI Lbs Per Square Inch
PSIA Lbs Per Square Inch Absolute
PSIG Lbs Per Inch Gauge
PSIO Lbs Per Square Inch Differential
PT Point
PTL Pull-To-Lock
PUL Pulverizer
PW Primary Water
PWR RNG Power Range
Using Abbreviations for Pipe Labels
INT Internal
INTERM Intermediate
IOD lodine
ISOL Isolation
JUNCT Junction
K Kilo
LNG Long/Liquified Natural Gas
LO FLW Low Flow
M/G Motor Generator Sets
MAINT Maintenance
MAX Maximum
MCR Main Control Room
MFP Main Feed Pump
MIN Minutes/Minimum
MOIST Moisture
MPH Miles Per Hour
MPS Miles Per Second
MS Main Steam/Moisture Separator
MSIV Main Steam Isolation Valve
MSR Moisture Separator Reheater
MTR Motor
MU Makeup
MVBL Movable
NAOH Sodium Hydroxide
NAR Narrow
NAR RNG Narrow Range
NBL Noble
NEG Negative
NEUT Neutron
NIS Nuclear Instrumentation System
NR Narrow Range
NUC Nuclear
OG Off-Gas
OOS Out of Service
OP Over Pressure
OPER Operator/Operating
OT Over Temperature
ОТ-ОР Over Temp-Over Pressure
OUT Output
OUTBD Outboard
OUTLT Outlet
OVERLD Overload
OVERTEMP Over Temperature
OVRPWR Overpower
PART Partial
PARTIC Particulate
PCT Percent
PCV Pressure Control Valve
PENET Penetration
PMG Permanent Magnet Generator
PNEU Pneumatic
PORV Power Operated Relief Valve
POS Positive
POT Potentiometer
PPB Parts per Billion
PPM Parts per Million
PR58 Process Radiation Monitor 58
PREAMP Preamplifiers
PRG Purge
PRI Primary
PROC Process
PRT Pressurizer Relief Tank
PS Power Supply
PSI Lbs Per Square Inch
PSIA Lbs Per Square Inch Absolute
PSIG Lbs Per Inch Gauge
PSIO Lbs Per Square Inch Differential
PT Point
PTL Pull-To-Lock
PUL Pulverizer
PW Primary Water
PWR RNG Power Range
12Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Using Abbreviations for Pipe Labels
PRV Pressure Relief Valve
PZR Pressurizer Relief Tank
RC Reactor Coolant
RCDT Reactor Coolant Drain Tank
RCFC Reactor Containment Fan Cooler
RCL Reactor Coolant Loop
RCS Reactor Coolant System
RDT Reheater Drain Tank
RECOMB Recombiner
REGEN Regenerative
REL Relative
RESID Residual
RH Residual Heat
RHR Residual Heat Removal
RHT Reheat
R LY Relay
RNG Range/Running
ROC Rate of Change
RTD Resistance Temp. Detector
RTN Return
RVLIS Reactor Vessel Level Indication System
RW Radwaste
RWST Refueling Water Storage Tank
S/G Steam Generator
SA Service Air
SB Service Building
SEC Second
SEL Select
SEP Separator
SERV Service
SFP Service Fuel Pump
SGTR Steam Generator Tube Rupture
SI Safety Injection
SPEC Specification
STDY Steady
STNBY Standby
STOR Storage
SUPPR Suppressed
SUPRESS Suppression
SW Service Water/Switch
SWST Secondary Water Storage Tank
T/C Thermocouples
TAMB Temperature Ambient
TAVG Average Temperature
TB Turbine Building/Terminal Tank
TC Cold Leg Temperature
TCV Temperature Control Valve
TD Turbine Drain
TG Turbine Generator
THER Thermal
THRT Throttle
THST Thrust
TREP Reference Temperature
TRNA Train A (B, C, etc.)
TRNSNT Transient
TRP Trip
TTD Terminal Temp. Difference
TURBS Turbines
UNCONT Uncontrolled
VAC Vacuum
VALS Values
VAP Vapor
VAR Variance
VCT Volume Control Tank
VIB Vibration
VNT Vent
VOL Volume
WR Wide Range
XFR Transfer
XMTR Transmitter
Using Abbreviations for Pipe Labels
PRV Pressure Relief Valve
PZR Pressurizer Relief Tank
RC Reactor Coolant
RCDT Reactor Coolant Drain Tank
RCFC Reactor Containment Fan Cooler
RCL Reactor Coolant Loop
RCS Reactor Coolant System
RDT Reheater Drain Tank
RECOMB Recombiner
REGEN Regenerative
REL Relative
RESID Residual
RH Residual Heat
RHR Residual Heat Removal
RHT Reheat
R LY Relay
RNG Range/Running
ROC Rate of Change
RTD Resistance Temp. Detector
RTN Return
RVLIS Reactor Vessel Level Indication System
RW Radwaste
RWST Refueling Water Storage Tank
S/G Steam Generator
SA Service Air
SB Service Building
SEC Second
SEL Select
SEP Separator
SERV Service
SFP Service Fuel Pump
SGTR Steam Generator Tube Rupture
SI Safety Injection
SPEC Specification
STDY Steady
STNBY Standby
STOR Storage
SUPPR Suppressed
SUPRESS Suppression
SW Service Water/Switch
SWST Secondary Water Storage Tank
T/C Thermocouples
TAMB Temperature Ambient
TAVG Average Temperature
TB Turbine Building/Terminal Tank
TC Cold Leg Temperature
TCV Temperature Control Valve
TD Turbine Drain
TG Turbine Generator
THER Thermal
THRT Throttle
THST Thrust
TREP Reference Temperature
TRNA Train A (B, C, etc.)
TRNSNT Transient
TRP Trip
TTD Terminal Temp. Difference
TURBS Turbines
UNCONT Uncontrolled
VAC Vacuum
VALS Values
VAP Vapor
VAR Variance
VCT Volume Control Tank
VIB Vibration
VNT Vent
VOL Volume
WR Wide Range
XFR Transfer
XMTR Transmitter
13Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
Industry-Specific Pipe
Labeling Requirements
For most industries, following the ASME/ANSI pipe marking standards is enough
to stay safe and meet OSHA rules. However, some workplaces have extra
requirements because they deal with dangerous substances or have complex
environments. These include:
Ammonia Pipe Marking
NFPA 99/CGA C-9 Pipe Marking
ISO/DIS 14726 Sea Vessel & Marine Pipe Marking
Water Treatment Pipe Marking
Commercial Building Pipe Marking
Industry-Specific Pipe
Labeling Requirements
For most industries, following the ASME/ANSI pipe marking standards is enough
to stay safe and meet OSHA rules. However, some workplaces have extra
requirements because they deal with dangerous substances or have complex
environments. These include:
Ammonia Pipe Marking
NFPA 99/CGA C-9 Pipe Marking
ISO/DIS 14726 Sea Vessel & Marine Pipe Marking
Water Treatment Pipe Marking
Commercial Building Pipe Marking
14Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
How to Place Labels
for Maximum Visibility
Pipe labels should be placed where most people can easily see them. Here are
some simple guidelines to make sure labels are visible:
The label should be easy to see from the normal approach point.
The label should be visible at every entry point in floors or walls.
If a pipe is below eye level, place the label above the pipe’s center.
If a pipe is above eye level, place the label below the pipe’s center
MARKER
MARKER
MARKER
MARKER MARKER
MARKER
How to Place Labels
for Maximum Visibility
Pipe labels should be placed where most people can easily see them. Here are
some simple guidelines to make sure labels are visible:
The label should be easy to see from the normal approach point.
The label should be visible at every entry point in floors or walls.
If a pipe is below eye level, place the label above the pipe’s center.
If a pipe is above eye level, place the label below the pipe’s center
MARKER
MARKER
MARKER
MARKER MARKER
MARKER
15Pipe Marking Guide 1-855-484-7266 | www.LabelMax.com
How to Make
Pipe Labels
Select from 1 of 3 options:
1.
2.
3.
Buy Pre-Made Labels
You can order standard pipe labels from a label supplier. Just make
sure to choose the right size, color, and material for your needs. This is
a good option for small pipe marking projects.
Order Custom Labels
Many suppliers can print custom labels for your pipes. This is helpful if
you need labels for pipes that aren’t common or have unique needs.
Print Your Own Labels
You can print your own labels using an industrial label printer. These
printers can make vinyl labels in the right colors and sizes for your
facility. Printing your own labels is the lowest cost option, saves you
time, and offers the most durability. It’s perfect for large pipe marking
projects or to update your pipe labels anytime.
Every LabelMax Printer Includes:
Lifetime Printer Warranty
Unlimited Tech Support
Label Software with Unlimited User Licences
Your own dedicated Label Expert - a real person
you can call directly for help with ordering, support,
and anything in between.
View the Pipe Marking Bundle
https://labelmax.com/labelmax-300xi-pipe-marking-bundle/
How to Make
Pipe Labels
Select from 1 of 3 options:
1.
2.
3.
Buy Pre-Made Labels
You can order standard pipe labels from a label supplier. Just make
sure to choose the right size, color, and material for your needs. This is
a good option for small pipe marking projects.
Order Custom Labels
Many suppliers can print custom labels for your pipes. This is helpful if
you need labels for pipes that aren’t common or have unique needs.
Print Your Own Labels
You can print your own labels using an industrial label printer. These
printers can make vinyl labels in the right colors and sizes for your
facility. Printing your own labels is the lowest cost option, saves you
time, and offers the most durability. It’s perfect for large pipe marking
projects or to update your pipe labels anytime.
Every LabelMax Printer Includes:
Lifetime Printer Warranty
Unlimited Tech Support
Label Software with Unlimited User Licences
Your own dedicated Label Expert - a real person
you can call directly for help with ordering, support,
and anything in between.
View the Pipe Marking Bundle
https://labelmax.com/labelmax-300xi-pipe-marking-bundle/
Shop online now at www.LabelMax.com
5S Lean, Safety, and Compliance
Solutions for Every Industry
LabelMax delivers industrial label printing solutions, floor marking, and identification
products to keep facilities efficient, and safe for any application.
5S Lean, Safety, and Compliance
Solutions for Every Industry
LabelMax delivers industrial label printing solutions, floor marking, and identification
products to keep facilities efficient, and safe for any application.
Tags
pipe marking
pipe labeling
osha pipe marking
ansi pipe marking
industrial labeling
safety compliance
workplace safety
visual workplace
facility management
lean manufacturing
pipe identification
safety standards
ansi compliance
labeling guide
safety labels
industrial facility safety
process piping
mechanical contractors
pipe markers
project management
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