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4.+Useful+piping+abbreviations

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Know and Understand Your Piping System
Prepared by
USEFUL PIPING ABBREVIATIONS (1/3)
A
A
A
AL
ANSI
API
ASSY
ASTM
Alarm
Anchor
Aluminum
American National Standards Institute
American Petroleum Institute
Assembly
American Society for Testing and Materials
B
B
BB
BBE
BC
BD
BE
BF
BL
BLDG
BLE
BOP
B&S
BSE
BV
BW
Beveled
Bolted Bonnet
Bevel Both Ends
Bolt Circle
Blow Down
Beveled End(s)
Blind Flange
Battery Limits
Building
Bevel Large End
Bottom of Pipe
Bell and Spigot
Bevel Small End
Ball Valve
Butt-weld
C
CHKV
CI
CL
COL
COLS
CONC
COND
CONN
CORR
CPLG
CS
CS
CTRLV
CWR
CWS
Check Valve
Cast Iron
Clearance
Column
Columns
Concentric
Condensate
Connection
Corrosion
Coupling
Carbon Steel
Cast Steel
Control Valve
Cooling Water Return
Cooling Water Supply
D
DA
DF
DIA
DIM
DISCH
DR
DW
DWG
DRWN
Directional Anchor
Drain Funnel
Diameter
Dimension
Discharge
Drain
Dummy Weld
Drawing
Drawn
E
E
ECC
EL
ELL
ELEV
EQUIP
ERW
EXCH
EXIST
East
Eccentric
Elevation
Elbow
Elevation
Equipment
Electric Resistance Welded
Exchanger
Existing
F
FBO
FDN
FE
F/F
FF
FF
FI
FIC
FIG
FLR
FL
FOB
FOT
FR
FRC
FS
FS
FT
FW
Furnished By Others
Foundation
Flow Element
Face-to-Face
Flat Face
Full Face
Flow Indicator
Flow Indicating Controller
Figure
Floor
Flange
Flat on Bottom
Flat on Top
Flow Recorder
Flow Recording Controller
Field Support
Forged Steel
Foot
Field Weld
G
G
GAL
GALV
GPH
GPM
GR
GaV
GIV
Gauge
Gallon(s)
Galvanized
Gallons Per Hour
Gallons Per Minute
Grade
Gate Valve
Globe Valve
H
HCV
HDR
HIC
HLL
HOR
HP
HR
HTR
HVAC
HVY
HYD
Hand Control Valve
Header
Hand Indicating Controller
High Liquid Level
Horizontal
High Pressure
Hanger Rod
Heater
Heating, Ventilating, and Air Conditioning
Heavy
Hydraulic
I
IA
IA
IC
ID
IDD
IET
IGT
IH
IN
INS
INST
INV
IPS
IS
ISA
ISO
ISO
IST
Instrument Air
Insulation (Anti-sweat)
Insulation (Cold)
Inside Diameter
Inside Depth of Dish
Electric Trace
Glycol Trace
Insulation (Heat Conservation)
Inch(es)
Insulate or Insulation
Instrument(ation)
Invert Elevation
Iron Pipe Size
Insulation Safety
Instrumentation Society of America
International Organization for Standardization
Isometric
Steam Trace
Know and Understand Your Piping System
Prepared by
USEFUL PIPING ABBREVIATIONS (2/3)
J
JCT
JS
JT
Junction
Jack Screw
Joint
L
L
LA
LAH
LAL
LBS
LC
LC
LG
LG
LI
LIC
LLL
LN
LO
LP
LPG
LPT
LR
LR
LRC
LS
Level
Level Alarm
Level Alarm-High
Level Alarm-Low
Pounds
Level Controller
Lock Closed
Level Gauge
Level Glass
Level Indicator
Level Indicating Controller
Low Liquid Level
Line
Lock Open
Low Pressure
Liquefied Petroleum Gas
Low Point
Level Recorder
Long Radius
Level Recording Controller
Level Switch
M
mm
M
M&F
MATL
MAX
MECH
MFG
MFR
MI
MIN
MIN
MISC
MK
MW
MW
millimeter
Meter
Male and Female
Material
Maximum
Mechanical
Manufacturing
Manufacturer
Malleable Iron
Minimum
Minute
Miscellaneous
Piece Mark
Manway
Miter Weld
N
N
NC
NEC
NEG
NIP
NLL
NO
NO
NOM
NOZZ
NPS
NPSH
NPT
NTS
North
Normally Closed
National Electric Code
Negative
Nipple
Normal Liquid Level
Normally Open
Number
Nominal
Nozzle
Nominal Pipe Size
Net Positive Suction Head
National Pipe Thread
Not to Scale
O
OAL
OD
Overall Length
Outside Diameter
OH
OPP
OS&Y
OVHD
OWS
Open Hearth
Opposite
Outside Screw and Yoke
Overhead
Oily Water Sewer
P
PA
PA
PC
PCV
PdRC
PE
PI
PI
PIC
P&ID
PLE
PO
POE
POS
PP
PR
PRC
PS
PSE
PSI
PSIA
PSIG
PSV
PT
Pipe Anchor
Pressure Alarm
Pressure Controller
Pressure Control Valve
Pressure Differential Recording Controller
Plain End
Point of Intersection
Pressure Indicator
Pressure Indicating Controller
Piping and Instrument Diagram
Plain Large End
Pump Out
Plain One End
Positive
Personnel Protection
Pressure Recorder
Pressure Recording Controller
Pipe Support
Plain Small End
Pounds Per Square Inch
Pounds Per Square Inch Absolute
Pounds Per Square Inch Gage
Pressure Safety Valve
Point
Q
QTY
QUAD
QUAD
Quantity
Quadrant
Quadruple
R
R
REC’D
RED
REF
REINF
REQ’D
REV
REV
RF
RJ
RPM
RS
RTJ
Radius
Received
Reducer
Reference
Reinforce
Required
Reverse
Revision
Raised Face
Ring-Type Joint
Rotations Per Minute
Rising Stem
Ring Type Joint
S
S
SC
SCH
SCRD
SECT
SH
SMLS
SO
SO
SOL
SP
South
Sample Connection
Schedule
Screwed
Section
(SHT) Sheet
Seamless
Slip On
Steam Out
Sock-o-let
Set Point
Know and Understand Your Piping System
Prepared by
USEFUL PIPING ABBREVIATIONS (3/3)
SP
SPEC
SQ
SR
STD
STL
STM
SUCT
SUPT
SW
SWG
SWP
SYS
GR Specific Gravity
Specification
Square
Short Radius
Standard
Steel
Steam
Suction
Support
Socket-Weld
Swage
Standard Working Pressure
System
T
T
TA
Tan
TBE
TC
TCV
TE
TEMP
T&C
T&G
THRD
TI
TIC
TLE
TOC
TOG
TOL
TOS
TR
TRC
TSE
T/T
TW
TW
TYP
Steam Trap
Temperature Alarm
Tangent
Thread Both Ends
Temperature Controller
Temperature Control Valve
Threaded End
Temperature
Thread and Coupled
Tongue and Groove
Thread
Temperature Indicator
Temperature Indicating Controller
Thread Large End
Top of Concrete
Top of Grout
Thread-o-let
Top of Steel
Temperature Recorder
Temperature Recording Controller
Thread Small End
Tangent to Tangent
Temperature Well
Thermowell
Typical
U
UA
US
Utility Air
Utility Station
V
VA
VA
VB
VC
VERT
VF
VOL
VS
Valve
Vent to Atmosphere
Vortex Breaker
Vitrified Clay
Vertical
Vent to Flare
Volume
Vent to Stack
W
w/
W
WB
WE
WLD
WN
WOG
WOL
with
West
Welded Bonnet
Weld End
Weld
Weld Neck
Water, Oil, Gas
Weld-o-let
WT
Weight
X
XH
XS
XXH
XXS
Extra Heavy
Extra Strong
Double Extra Heavy
Double Extra Strong
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