Tag numbering system

Equipment and component tag numbering system in oil, gas and petrochemical industry.

1. T ag numbering system in oil, gas and petrochemical industry. Hundreds of thousands of components and equipment are installed in each OGP plant and require unique identification (ID) to be easily and safely identified during operation, maintenance, function testing, inspection or troubleshooting. There is a need to have a unified tag numbering system or coding system to assign every component and equipment a unique ID. Assigning IDs starts in project design phase and shall follow some guidelines or standard. Unfortunately there is no single standard or guideline which can manage all types (mechanical, electrical, instrument, HVAC, safety equipment, piping and pipelines) of components and equipment. Tag numbering system or coding system is well defined in project specifications and despite there is no common single standard or single guideline, there is common convention in OGP industry based on best practices and relevant standards to form the tag numbering or coding system specifications. Examples of these practices (in-house standard) are Shell DEP 01.00.09.10 and Norsok Z-DP-002. At site, tag numbers shall be clearly written on visible location at equipment, stamped onto nameplate and metal strips as appropriate, even project specifications can stipulate the font size and color. The same tag numbers are used in data sheets, PFDs, PIDs, instrument list, procedures, IOM manuals, control system, control mimics and CMMS, they are life-time IDs. The following are real examples of tag numbering process.

2. Tag numbering system specifications Equipment

3. Driver

4. Auxiliary Equipment

5. NUMBERING OF INSTRUMENTS

6. NUMBERING OF PIPING LINE

7. NUMBERING OF ELECTRICAL EQUIPMENT IN SUBSTATION

8. NUMBERING of Building and HVAC

9. APPENDIX-I FACILITY CODE (FIRST 3 DIGITS OF UNIT CODE) Code Unit Description Unit Abbreviation 000 General   110 Crude Distillation Unit CDU 120 CDU LPG Merox Process UNIT CDU LPG MEROX 130 CDU Kerosene Merox Process Unit KEROSENE MEROX 200 Resid FCC Reactor Regenerator Section RFCC RXRG 210 Resid FCC Main Fractionation Section RFCC MF 220 Resid FCC Gas Concentration Section RFCC GC 230 Resid FCC Flue gas Section RFCC FG 260 Resid FCC LPG Merox Process Unit RFCC LPG MEROX 270 Propylene Recovery Unit PRU 280 Huels Selective Hydrogenation Process Unit SHP 290 Indirect Alkiration Unit InAlk 320 Distillate Unionfining Process Unit DHDS 330 Hydrogen Generation Unit HGU 340 Sour Water Stripping Unit SWS 350 Amine Regeneration Unit ARU 360 Sulfur Recovery Unit (Train 1) SRU1 365 Sulfur Recovery Unit (Train 2) SRU2 370 Tail Gas Treating Unit TGU 380 Sulfur Granulation & Packing Unit SGU 400 TAME Selective Hydrogenation Unit TSHP 410 TAME Unit TAME 420 Gasoline HDS Unit GHDS   Utilities   500 Utility Facilities Common   510 Power Plant, Electricity and Distribution System ELC 520 Sea Water Intake Station SWI 530 Water System WS 531 Cooling Water System CWS 532 Sea Water Desalination System SWD 534 Potable and Service Water System PSW 540 Steam and Condensate System STM

10. APPENDIX-I FACILITY CODE (FIRST 3 DIGITS OF UNIT CODE) Code Unit Description Unit Abbreviation 550 Fuel Gas and Natural Gas System FG 560 Instrument Air and Plant Air System IA 570 Nitrogen System N2 580 Chemicals Preparation and Injection Facilities   590 Flushing Oil System FO   Offsites   600 Offsite Common   610 Feedstock and Slop Tankage   620 Product and Component Tankage   630 Truck Loading Facilities   640 Marine Loading Facilities   650 Waste Water Treatment Facilities WWT 690 Flare System FLR 700 Marine   800 Buildings     Refinery Common   900 Refinery Common   910 Fire Fighting System FIR 950 Outside Battery Limit General  

11. APPENDIX-II EQUIPMENT SYMBOL LETTER Symbol Letter Description of Equipment A Special Check Valve, Coalescer and other Miscellaneous Equipment B Boiler (Fired) C Column DA Deaerator DG Diesel Engine Generator DS Desuperheater E S & T Exchanger, Special Heat Exchanger (Hair Pin, Double Tube, Plate), Air Cooled Exchanger, Electric Heater and Tank Heater EJ Expansion Joint F Fired Heater, Air Preheater and Incinerator GT Gas Turbine GTG Gas Turbine Generator J Ejector and Vent Silencer K Compressor, Blower and Fan L Duct LA Loading Arm LH Loading Hose M Mixer ME Machinery, Packaged Unit, Elevator P Pump (Centrifugal, Reciprocating, Rotary) R Reactor S Filter SK Stack SN Sample ST Steam Turbine STG Steam Turbine Generator SV Slide Valve T Tank (Including Spherical Tank) V Vessel (Including Pressure Storage Vessels) WHB Waste Heat Boiler and CO Boiler X Diverter Valve Z Pit

12. APPENDIX-III FUNCTIONAL IDENTIFICATION OF INSTRUMENTS Symbol First Letter Subsequent Letters   Measured Variable Modifier Readout or Passive Function Output Function / Alarm Mode Modifier / Alarm Mode A Analysis   Alarm     B Burner Flame         C   Compensated   Control Closed D   Differential       E Voltage (EMF)   Sensor (Primary Element)     F Flow Fraction (Ratio e.t.c.)       G     Glass, Gauge     H Hand (Manual) Hand   High High I Current (Electrical)   Indicate     J Power Scan       K Time or Schedule Time Rate of Change   Control Station   L Level   Light Low Low M       Motor Intermediate N     Injection     O   Operated Orifice   Open P Pressure, Vacuum   Point (Test Conn.)     Q Quantity Integrate, Totalize       R     Record     S Speed, Frequency Safety, Shutdown Switch, Selector     T Temperature     Transmitter   U Multivariable/ Common   Multifunction Multifunction   V Vibration     Valve, Damper, Louver   W Weight, Force   Well     X Miscellaneous, Status Skin Unclassified     Y Event, State or Presence     Relay, Compute, Convert, Solenoid Valve   Z Position,     Driver, Actuator, Unclassified Final Control Element  

13. APPENDIX-IV SYMBOL LETTER FOR MISC. PIPING COMPONENT Symbol Letter Description Symbol Letter Description ARV Automatic Recirculation Valve MOV Motor Operated Valve BDV Blow Down Valve RO Restriction Orifice DT Drain Trap SR Strainer (Conical) SE Emergency Shower & Eye Wash SRY Strainer (Y-Type) EXH Exhaust Head SRT Strainer (T-Type ) FE Flow Element, such as Orifice Plate SRBLM Strainer (Bucket Type)In Line Mixer FMT Flexible Metal Tube ST Steam Trap Needle Valve FA Flame Arrestor SGMOV Sight Glass Motor Operated Valve HC Hose Connector     IJP Injection Nozzle NV Needle Valve IGK Insulation Gasket Kits     IF Insulation Flange, Gasket or Kits    

14. APPENDIX-IV SYMBOL LETTER FOR MISC. PIPING COMPONENT TAG DESCRIPTION 18DR Long Radius Elbow (Bending Radius : 18D) 9DR Long Radius Elbow (Bending Radius : 9D) AV Automatic Vent CB Cooling Bath DR Drip Ring DVT Davit EXJ Expansion Joint FPH Finned Pipe (Fin Installation : Circumferential) FPV Finned Pipe (Fin Installation: Longitudinal) GAJ Adjustable Type Globe Valve GMS Globe Valve with Minimum Stopper HS Hose HV Gate Valve with Limit Switch LG Level Gauge NCV Non Slam Dual Plate Check Valve PIV Post Indicator Gate Valve PSC Piston Type Check Valve (Axial Spring Loaded Type) PVE Plug Valve with Extension Stem RBJ Rubber Joint RLF Refractory Lined Fitting RST Restrut RV Safety/Relief Valve SB Spectacle Blind, Blank and Spacer (26” and Larger) SC Sample Cooler SLC Silencer SMV Sampling Valve SPH Spring Support SWY Sway Brace TB Steel Tube TF Tube Fitting TSV Twin Seal Type Valve

15. APPENDIX-Ⅴ ELECTRICAL EQUIPMENT SYMBOL LETTER FOR SUBSTATION Symbol Letter Description AP Annunciator Panel AW Aircraft Warning Light Panel BC Battery Charger BD Bus Duct BT Battery CP Cathodic Protection Transformer Rectifier DS Disconnecting Switch ET Earthling Transformer ER Earthling Resistor LP Lighting Panel MC Motor Control Center PM Power Management System Equipment PP Power Distribution Panel RP Receptacle Panel SW Switchgear TR Transformer UP Uninterruptible Power Supply System WO Welding Outlet

16. APPENDIX-VI SERVICE FLUID IDENTIFICATION SYMBOL Symbol Letter Fluid Symbol Letter Fluid A PROCESS AIR HY HYDROGEN AC ACID IA INSTRUMENT AIR AFL ACID FLARE LLS LOW LOW PRESSURE STEAM AM AMINE LO LUBE OIL AMD AMINE DRAIN LS LOW PRESSURE STEAM ARD AROMATICS DRAIN MA METHANOL AV ATOMOSPHERIC VENT MAD METHANOL DRAIN BD BLOWDOWN MS MEDIUM PRESSURE STEAM BFW BOILER FEED WATER N NITROGEN CA CATALYST NA CAUSTIC CC COLD CONDENSATE(CLEAN) NG NATURAL GAS CH CHEMICALS P GENERAL PROCESS CHW CHILD WATER PA PLANT AIR CWR SECONDARY COOLING WATER RETURN PW SERVICE WATER (PLANT WATER) /DESALINATED WATER CWS SECONDARY COOLING WATER SUPPLY S SULFUR DMW DEMINIRALIZED WATER SC SUSPECT CONDENSATE DW POTABLE WATER(DRINKING WATER) SLG SLUDGE FG FUEL GAS SO SEAL OIL FL FLARE SWR SEA WATER RETURN FO FLUSHING OIL SWS SEA WATER SUPPLY FW FIRE FIGHTING WATER SY SANITARY DRAIN(DOMESTIC EFFLUENT) HCC HOT CLEAN CONDENSATE TW TEMPERED WATER HS HIGH PRESSURE STEAM WW WASTE WATER