| 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 |
Acronyms – PipeFitter
08
Feb