abbrev |
define |
ABS |
Absolute (plastic pipe) |
AGA |
American Gas Association |
ANSI |
American National Standards Institute |
API |
American Petroleum Institute |
ASME |
American Society of Mechanical Eng. |
ASSY |
Assembly |
ASTM |
American Society of Testing Materials |
ATM |
Atmosphere |
AUX |
Auxiliary |
AVG |
Average |
BB |
Bolted Bonnet |
BBE |
Beveled Both End |
BBL |
Barrel |
BC |
Bolt Circle |
BE |
Beveled End |
BF |
Blind Flange, Bottom Flat |
BLDG |
Building |
BLE |
Beveled Large End |
BLK |
Black |
BM |
Bill of Material, Brass Mounted, Bench Mark |
BOP |
Bottom Of Pipe |
B&S |
Bell and Spigot |
BSE |
Beveled Small End |
BTU |
British Thermal Units |
BW |
Butt Weld |
BWG |
Birmingham Wire Gauge |
C |
Celsius, Centigrade, Hundred |
CB |
Catch Basin |
CFD |
Cubic Feet per Day |
CFH |
Cubic Feet per Hour |
CFM |
Cubic Feet per Minute |
CI |
Cast Iron |
CO |
Clean Out |
CONC |
Concentric |
COND |
Condensate |
CONT |
Continue |
COORD |
Coordinate |
CORK |
Corrosion |
CP |
Close Pattern |
CPLG |
Coupling |
CS |
Cast Steel, Carbon Steel, Cold Spring Countersink |
CSA |
Canadian Standards Assoc. |
CSC |
Car Seal Closed |
CSO |
Car Seal Open |
C to C |
Centre to Centre |
CU |
Cubic |
C/W |
Complete With |
DBL |
Double |
DEG |
Degree |
DF |
Drain Funnel |
DIAG |
Diagram |
DIM |
Dimension |
DISCH |
Discharge |
DO |
Ditto |
DS |
Double Sweep, Dummy Support |
DWG |
Drawing |
EA |
Each |
ECC |
Eccentric |
EFW |
Electronic Fusion Weld |
EH |
Extra Heavy |
ELEV |
Elevation |
ELL |
Elbow |
ERW |
Elec. Resistance Weld |
EST |
Estimate |
E to E |
End to End |
F |
Fahrenheit |
FAB |
Fabricated |
FE |
Flanged end, Flow Element |
FF |
Flat Face, Full Faced, Flange Face |
FIG |
Figure |
FLG |
Flange |
FOB |
Flat on Bottom, Freight on Board |
FOF |
Face of Flange |
FOT |
Flat on Top |
FS |
Forged Steel |
FS |
Forged Steel, Far side |
FT |
Foot, Feet |
FTG |
Fitting, Footing |
F to F |
Face to Face |
FW |
Field Weld |
GAL |
Gallon |
GALV |
Galvanized |
GND |
Ground |
GPH |
Gallons per Hour |
GPM |
Gallons per Minute |
GR |
Grade |
HC |
Hydrocarbon |
HDR |
Header |
HEX |
Hexagon |
HP |
High point, High Pressure |
HR |
Hour |
I |
Structural I Section |
IB |
Iron Body |
ID |
Inside Diameter |
IE |
Invert Elevation |
IMP |
Imperial |
INCL |
Including |
INFO |
Information |
INS |
Insulate |
INST |
Instrument |
IPS |
Iron Pipe Size, Inches per Second |
IS |
Inside Screw |
ISO |
Isometric Drawing |
IS&Y |
Inside screw & Yoke |
JT |
Joint |
kPA |
Kilopascals |
L |
Materials List |
LB |
Pound |
LC |
Lock Closed |
LE |
Large End |
LG |
Long |
LH |
Left Hand |
LIN |
Lineal |
LO |
Lock Open |
LP |
Low Point, Low Pressure |
LR |
Long Radius |
LT |
Light Wall |
LW |
Lap Weld |
M |
Meter, Million, Thousand, (Metric) (Roman) |
MATL |
Material |
MAWP |
Maximum Allowable Working Pressure |
MAX |
Maximum |
MB |
Machine Bolt |
MFG |
Manufacture |
MH |
Manhole |
MI |
Malleable Iron |
MIN |
Minimum, Minute |
MISC |
Miscellaneous |
MK |
Mark |
MK |
Mark |
MRGL |
Metal Reinforced Graphite Laminate |
MSS |
Manufacturers Standardization Society |
MTO |
Material Take-off |
MW |
Miter Welder |
NA |
Not Applicable |
NC |
Normally Closed |
NO |
Normally Open, Number |
NOM |
Nominal |
NO or # |
Number |
NPS |
Nominal Pipe Size |
NPT |
National Pipe Thread |
NRS |
Non-rising Stem |
NS |
Near Side |
NTS |
Not to Scale |
OA |
On Centres |
OD |
Outside Diameter |
OS& Y |
Outside Screw & Yoke |
PBE |
Plain Both Ends |
PE |
Plain End |
PF |
Plain Face |
PI |
Pressure Indicator |
P&ID |
Piping & Instrumentation Diagram |
POE |
Plain One End |
PR |
Pair |
PS |
Pipe Support, Pressure Switch |
PSIA |
Pounds per Square inch Absolute |
PSIG |
Pounds per Square Inch Gauge |
PVC |
Polyvinyl Chloride |
QO |
Quick Opening |
QTY |
Quantity |
R |
Radius |
RED |
Reducing, Reducer |
REF |
Reference |
REINF |
Reinforce |
REQD |
Required |
RF |
Raised Face |
RH |
Right Hand |
RJ |
Ring Joint |
RPM |
Revolutions Per Minute |
RR |
Railroad |
RS |
Rising Stem |
RTJ |
Ring Type Joint |
SAE |
Society of Automotive Engineers |
SCH or SCHED |
Schedule |
SCR |
Screwed |
SEC |
Second |
SECT |
Section |
SF |
Spot Faced |
SKT |
Socket |
SMLS |
Seamless |
SO |
Slip-on |
S.O.L. |
Sock-o-let |
SPEC |
Specification |
SQ |
Square |
SR |
Short Radius |
SS |
Stainless Steel |
ST |
Steam Trap |
STA |
Station |
STD |
Standard |
STL |
Steel |
STM |
Steam |
S to S |
Seam to Seam |
STR |
Straight |
SUCT |
Suction |
SW |
Socket Welding |
SWG |
Swage |
SWP |
Steam Working Pressure |
SYM |
Symmetrical |
SYS |
System |
TBE |
Threaded Both Ends |
T&C |
Thread and Coupled |
TC |
Test Connection |
TE |
Threaded End |
TF |
Top Flat |
T&G |
Tongue and Groove |
TGT |
Tangent |
THK |
Thick |
TMP |
To Match Pipe |
TOC |
Top of Concrete |
TOE |
Threaded One End |
T.O.L. |
Thread-o-let |
TOS |
Top Of Steel |
TPI |
Threads Per Inch |
TSE |
Threaded Small End |
TSS |
Temporary Suction Strainer |
T-T |
Tangent to Tangent |
T,TEMP |
Temperature |
TYP |
Typical |
UG |
Underground |
UNC |
Unified Coarse Thread |
UNF |
Unified Fine Thread |
VAC |
Vacuum |
VERT |
Vertical |
WB |
Welded Bonnet |
WE |
Welded End |
WF |
Wide Flange Structural |
WN |
Welding Neck |
W/O |
Without |
WOG |
Water, Oil and Gas |
W.O.L. |
Weld-o-let |
WP |
Working Pressure |
WT |
Weight, Wall Thickness |
XH |
Extra Heavy |
XS |
Extra Strong |
XXH |
Double Extra Heavy |
XXS |
Double Extra Strong |