Portal›Taxonomy
ISO 14224 Equipment Taxonomy
Hierarchy for reliability and maintenance data from business context down to equipment, maintainable item and part. The portal distinguishes levels already available in current source data from levels that still require structured enrichment.
Working Taxonomy Levels
8
Business Category through Part
Equipment Families
116
Current Level-6 classification support
Catalog Profiles
453
Maintenance strategy reference profiles
Equipment Mapped
225.010
Six-RU source population
ISO 14224 Taxonomy Hierarchy
Levels 1-5 describe use/location context; Levels 6-9 describe the equipment and its lower-level breakdown.
ISO Level 1 - Industry: Petroleum / petrochemical industry is retained as the overall context. The working hierarchy below starts at Level 2 Business Category.
Level 2
Business Category
Downstream / Refining
Business stream in which the equipment operates.
Configured corporate context
Level 3
Installation
Refinery / Refinery Unit (RU)
Physical facility or installation. In this portal, RU is the practical installation reference.
Available from RU source
Level 4
Plant / Unit
Process unit or utility plant, e.g. CDU, RCC, Utilities, Oil Movement
Operating plant or process unit containing the system and equipment.
Partially represented; requires normalized unit mapping
Level 5
Section / System
Process section or functional system, e.g. charge system, cooling-water system
Functional system that provides the operating context for the equipment unit.
Functional Location / Plant Section available; normalization required
Level 6
Equipment Class / Unit
Pump, compressor, vessel, tank, valve, motor, transmitter, piping, etc.
The equipment unit where failure mode and maintenance strategy are normally defined.
Available through equipment family / equipment group
Level 7
Subunit
Driver, gearbox, pump end, actuator, control module, etc.
Major subdivision of an equipment unit.
Not structured in current source
Level 8
Component / Maintainable Item
Bearing, mechanical seal, motor, valve trim, sensor, filter, etc.
Item normally maintained, repaired or replaced as a unit.
Legacy Equipment–Component relationships are available; maintainable-item semantics are progressively normalized by equipment family.
Level 9
Part / Spare Part
Seal face, O-ring, gasket, bolt, impeller, bearing element, tube, etc.
Lowest part level. ISO 14224 treats this level as optional; it is useful for BOM and spare-part linkage.
Legacy Equipment–Component relationships are available. Maintenance component taxonomy and family reference components are progressively normalized by equipment family.
Illustrative Breakdown - Centrifugal Pump
Example of how one refinery equipment can be represented from business context to spare-part level.
L2 BusinessDownstream / Refining
L3 InstallationRefinery / RU
L4 Plant / UnitCDU
L5 SystemCharge Pump System
L6 Equipment UnitCentrifugal Pump
L7 SubunitPump end / driver / coupling
L8 Maintainable ItemMechanical seal / bearing / motor
L9 Part / Spare PartSeal face / O-ring / bearing / gasket
Current Source-to-Taxonomy Mapping
Where current data can support ISO 14224 classification and where additional master-data work is still needed.
L2–L3 · Business / InstallationCorporate refining context and RU source are available.
L4–L5 · Plant / SystemMaintenance Plant, Plant Section and Functional Location exist, but require a normalized corporate unit/system dictionary.
L6 · Equipment UnitEquipment Family, Catalog Profile and Equipment Group provide the strongest current classification layer.
L7–L9 · Subunit to PartRequires structured equipment hierarchy and BOM / spare-part source. The current dataset should not be used to infer these levels automatically.
Actual Data Taxonomy Explorer
This explorer uses only fields available in the six-RU Asset Register. It supports actual drilldown to RU -> maintenance location -> plant section / FLOC -> equipment family.
Data boundary: values such as RU6-RCC, RU7-CDU and RU4-LOC1 appear directly where encoded by the source. Numeric Plant Section codes and other raw location codes are preserved until a governed corporate unit/system dictionary is available.
Level-6 Equipment Family Register
| Family ID | Equipment Family | Catalog Profiles | Equipment 6 RU | Task Package | Equipment Group |
|---|---|---|---|---|---|
| FAM-081 | Process Piping | 9 | 71.272 | ST-PIPING | Process Piping |
| FAM-107 | Transmitter | 16 | 20.113 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-016 | Control / Final Element Valve | 3 | 13.334 | IN-CONTROL-VALVE | Control Valve / Final Control Element |
| FAM-029 | Electric Motor | 7 | 11.308 | EL-MOTOR | Electric Motor |
| FAM-077 | Pressure Safety / Relief Valve | 4 | 10.308 | ST-PSV | Pressure Safety / Relief Valve |
| FAM-079 | Primary Sensor / Element | 8 | 9.781 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-051 | Indicator | 8 | 8.897 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-053 | Instrument Auxiliary / Converter / Annunciator | 13 | 8.042 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-082 | Pump | 29 | 7.150 | RT-PUMP | Pump / Hydraulic Motor |
| FAM-105 | Switchgear | 3 | 5.303 | EL-SWGR-MCC | Switchgear / MCC |
| FAM-064 | Motor Control Center | 3 | 4.902 | EL-SWGR-MCC | Switchgear / MCC |
| FAM-036 | Fire & Gas Detection / Alarm / Deluge System | 6 | 4.308 | IN-FG | Fire & Gas Detection / Alarm / Deluge Logic |
| FAM-045 | Generator / Motor Control | 9 | 4.256 | EL-GENERATOR | Generator / Excitation / Generator Control |
| FAM-048 | Heat Exchanger | 8 | 3.935 | ST-HX | Heat Exchanger |
| FAM-030 | Electrical Panel | 11 | 3.900 | EL-PANEL | Electrical Panel / Distribution / Control Panel |
| FAM-023 | Detector / Switch / ESD Instrument | 3 | 3.887 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-075 | Pressure / Process Vessel | 3 | 3.131 | ST-VESSEL | Pressure / Process Vessel |
| FAM-034 | Fan | 1 | 1.974 | RT-FAN | Fan / Blower |
| FAM-037 | Fire Fighting Equipment | 2 | 1.917 | SF-FIRE | Fire Fighting / Fire Water / Foam Equipment |
| FAM-061 | Metering / Custody Transfer Equipment | 11 | 1.813 | IN-METERING | Metering / Custody Transfer System |
| FAM-096 | Solenoid Valve | 1 | 1.795 | IN-ESD-FINAL | ESD Final Element / Solenoid / Shutoff Valve |
| FAM-103 | Storage Tank | 8 | 1.406 | ST-TANK | Atmospheric / Low-Pressure Storage Tank |
| FAM-106 | Transformer | 4 | 1.349 | EL-TRANSFORMER | Transformer |
| FAM-018 | Controller | 7 | 1.183 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-003 | Air-Cooled Heat Exchanger (ACHE) | 1 | 1.104 | ST-ACHE | Air-Cooled Heat Exchanger |
| FAM-047 | HVAC / Refrigeration | 6 | 1.062 | UT-HVAC | HVAC / Refrigeration / Chiller |
| FAM-008 | Boiler Sootblower | 1 | 1.046 | RT-SOOTBLOWER | Boiler Sootblower |
| FAM-098 | Stationary Filter / Strainer | 2 | 901 | ST-FILTER | Filter / Strainer |
| FAM-009 | Building / Facility Structure | 13 | 851 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-068 | Online Analyzer | 4 | 842 | IN-ANALYZER | Online / Laboratory Analyzer |
| FAM-110 | UPS / DC Power / Battery Charger | 4 | 810 | EL-UPS-DC | UPS / DC Power / Battery Charger |
| FAM-073 | Power Cable | 3 | 790 | EL-AUX | Electrical Auxiliary: Cable / Earthing / Lighting / Cathodic Protection |
| FAM-109 | Turbine / Prime Mover | 7 | 690 | RT-TURBINE | Turbine / Prime Mover |
| FAM-022 | DCS / PLC / Control Computer | 12 | 622 | IN-CONTROL-SYS | DCS / PLC / SIS / Control System |
| FAM-041 | Fired Heater / Furnace | 3 | 619 | ST-HEATER | Fired Heater / Furnace |
| FAM-002 | Agitator / Mixer / Blender | 3 | 607 | RT-AGITATOR | Agitator / Mixer / Blender |
| FAM-104 | Strainer / Filter | 2 | 568 | ST-FILTER | Filter / Strainer |
| FAM-060 | Manual Valve | 1 | 538 | ST-VALVE-TRAP | Manual Valve / Steam Trap |
| FAM-074 | Power Transmission / Gearbox | 7 | 493 | RT-GEARBOX | Gearbox / Power Transmission |
| FAM-026 | ESD Final Element / Solenoid/Shutoff | 2 | 492 | IN-ESD-FINAL | ESD Final Element / Solenoid / Shutoff Valve |
| FAM-102 | Steel Structure / Pipe Rack | 2 | 474 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-080 | Process Column | 7 | 429 | ST-COLUMN | Process Column / Tower |
| FAM-039 | Fire Response Vehicle | 3 | 428 | ME-MOBILE | Mobile / Earth Moving / Transport Equipment |
| FAM-116 | Workshop / Fabrication Machine | 31 | 407 | WS-MACHINE | Workshop / Fabrication Machine |
| FAM-028 | Ejector / Injector | 3 | 391 | ST-EJECTOR | Ejector / Injector |
| FAM-056 | Laboratory Analyzer / Equipment | 7 | 389 | IN-ANALYZER | Online / Laboratory Analyzer |
| FAM-112 | Wastewater Basin / Separator | 4 | 292 | ST-WATER-WASTE | Wastewater / Reservoir / Water Treatment Assets |
| FAM-066 | Non-Pressure Process Vessel | 2 | 275 | ST-VESSEL-NP | Non-Pressure Process Vessel |
| FAM-031 | Emergency Shutdown System | 1 | 264 | IN-CONTROL-SYS | DCS / PLC / SIS / Control System |
| FAM-088 | Road / Railway / Pavement / Bridge | 6 | 225 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-085 | Recorder | 5 | 223 | IN-FIELD-INST | Field Instrument / Transmitter / Sensor / Indicator |
| FAM-006 | Blower | 1 | 215 | RT-FAN | Fan / Blower |
| FAM-084 | Reciprocating Compressor | 1 | 203 | RT-COMP-RECIP | Reciprocating Compressor |
| FAM-040 | Fire Water/Foam Monitor | 2 | 197 | SF-FIRE | Fire Fighting / Fire Water / Foam Equipment |
| FAM-010 | Cathodic Protection System | 1 | 185 | EL-AUX | Electrical Auxiliary: Cable / Earthing / Lighting / Cathodic Protection |
| FAM-052 | Inspection / NDT Equipment | 2 | 161 | IN-TEST-EQUIP | Instrument / NDT Test Equipment |
| FAM-062 | Mobile Lifting / Vehicle | 6 | 159 | ME-LIFTING | Crane / Elevator / Lifting Device |
| FAM-099 | Stationary Lifting Equipment / Crane / Elevator | 5 | 154 | ME-LIFTING | Crane / Elevator / Lifting Device |
| FAM-055 | Jetty / Marine Structure | 2 | 145 | CV-MARINE | Jetty / Marine / Barge / Mooring |
| FAM-087 | Reservoir / Dam / Dike | 3 | 138 | ST-WATER-WASTE | Wastewater / Reservoir / Water Treatment Assets |
| FAM-057 | Lifting Device / Winch / Jack | 3 | 132 | ME-LIFTING | Crane / Elevator / Lifting Device |
| FAM-083 | Reactor / Regenerator | 6 | 122 | ST-REACTOR | Reactor / Regenerator |
| FAM-059 | Loading Arm | 2 | 117 | ST-LOADING | Loading Arm / Transfer Interface |
| FAM-058 | Lighting System | 1 | 117 | EL-AUX | Electrical Auxiliary: Cable / Earthing / Lighting / Cathodic Protection |
| FAM-007 | Boiler | 4 | 116 | ST-BOILER | Boiler |
| FAM-093 | Silencer | 1 | 111 | ST-FLARE-STACK | Flare / Stack / Chimney System |
| FAM-012 | Centrifugal/Axial Compressor | 3 | 109 | RT-COMP-CENT | Centrifugal / Axial Compressor |
| FAM-032 | Engine | 2 | 99 | RT-ENGINE | Combustion Engine |
| FAM-090 | Rotary Filter / Strainer | 2 | 93 | ST-FILTER | Filter / Strainer |
| FAM-044 | Generator | 3 | 84 | EL-GENERATOR | Generator / Excitation / Generator Control |
| FAM-019 | Conveyor | 5 | 81 | RT-MECH-PACKAGE | Mechanical Package Equipment |
| FAM-089 | Rotary Compressor | 4 | 77 | RT-COMP-ROT | Rotary / Screw / Portable Compressor |
| FAM-086 | Relay / Control Panel | 1 | 73 | IN-CONTROL-SYS | DCS / PLC / SIS / Control System |
| FAM-076 | Pressure Bottle / Receiver | 3 | 71 | ST-VESSEL | Pressure / Process Vessel |
| FAM-100 | Steam Trap | 1 | 71 | ST-VALVE-TRAP | Manual Valve / Steam Trap |
| FAM-024 | Drain / Sewer / Culvert / Well | 6 | 67 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-054 | Instrument Test Equipment | 4 | 64 | IN-TEST-EQUIP | Instrument / NDT Test Equipment |
| FAM-020 | Cooling Tower | 1 | 62 | ST-COOLING | Cooling Tower |
| FAM-078 | Pressure Sphere / Pressure Vessel | 1 | 51 | ST-SPHERE | Pressure Sphere |
| FAM-027 | Earth Moving Equipment | 6 | 45 | ME-MOBILE | Mobile / Earth Moving / Transport Equipment |
| FAM-049 | Hydraulic/Pneumatic Motor | 2 | 44 | RT-PUMP | Pump / Hydraulic Motor |
| FAM-017 | Control System Peripheral | 1 | 42 | IN-CONTROL-SYS | DCS / PLC / SIS / Control System |
| FAM-065 | Non-Metallic Storage Tank | 1 | 42 | ST-TANK | Atmospheric / Low-Pressure Storage Tank |
| FAM-005 | Barge | 1 | 39 | CV-MARINE | Jetty / Marine / Barge / Mooring |
| FAM-097 | Stack / Chimney | 1 | 38 | ST-FLARE-STACK | Flare / Stack / Chimney System |
| FAM-015 | Compressor / Fan / Blower Misc. | 1 | 38 | RT-COMP-ROT | Rotary / Screw / Portable Compressor |
| FAM-094 | Silo / Hopper | 1 | 35 | ST-TANK | Atmospheric / Low-Pressure Storage Tank |
| FAM-011 | Centrifugal Purifier | 2 | 32 | RT-CENTRIFUGE | Centrifugal Purifier / Centrifuge |
| FAM-114 | Welding Generator / Power Source | 1 | 30 | EL-GENERATOR | Generator / Excitation / Generator Control |
| FAM-108 | Transport Equipment | 3 | 29 | ME-MOBILE | Mobile / Earth Moving / Transport Equipment |
| FAM-042 | Flare System | 1 | 28 | ST-FLARE-STACK | Flare / Stack / Chimney System |
| FAM-025 | Dryer | 3 | 18 | RT-MECH-PACKAGE | Mechanical Package Equipment |
| FAM-013 | Chiller / Refrigeration Package | 3 | 17 | UT-HVAC | HVAC / Refrigeration / Chiller |
| FAM-069 | Particle Collector | 4 | 16 | ST-SEPARATOR | Particle Collector / Separator |
| FAM-092 | Shore Protection Structure | 3 | 15 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-046 | Generator Excitation System | 1 | 15 | EL-GENERATOR | Generator / Excitation / Generator Control |
| FAM-033 | Evaporator | 1 | 14 | ST-VESSEL | Pressure / Process Vessel |
| FAM-038 | Fire Hose / Hose Handling | 1 | 13 | SF-FIRE | Fire Fighting / Fire Water / Foam Equipment |
| FAM-072 | Portable Compressor | 1 | 13 | RT-COMP-ROT | Rotary / Screw / Portable Compressor |
| FAM-004 | Audio / Visual Equipment | 2 | 12 | FC-GENERAL | General Facility / Office / AV Equipment |
| FAM-021 | Cryogenic / Refrigerated Storage Tank | 1 | 12 | ST-TANK-CRYO | Cryogenic / Refrigerated Storage Tank |
| FAM-050 | Incinerator | 3 | 11 | ST-INCINERATOR | Incinerator |
| FAM-101 | Steam Trap / Strainer Misc. | 1 | 11 | ST-VALVE-TRAP | Manual Valve / Steam Trap |
| FAM-070 | Pelletizer | 1 | 7 | RT-MECH-PACKAGE | Mechanical Package Equipment |
| FAM-043 | Gas Removal / Flare Auxiliary | 1 | 5 | ST-FLARE-STACK | Flare / Stack / Chimney System |
| FAM-095 | Sodium Hypochlorite Generation Package | 1 | 4 | PK-PACKAGE | Packaged System / Utility Package |
| FAM-035 | Fence / Boundary Structure | 1 | 4 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-113 | Wastewater Treatment Package / Plant | 1 | 2 | ST-WATER-WASTE | Wastewater / Reservoir / Water Treatment Assets |
| FAM-091 | Rotary Kiln | 1 | 2 | RT-MECH-PACKAGE | Mechanical Package Equipment |
| FAM-111 | Unclassified Asset | 1 | 1 | ZZ-RECLASSIFY | Unclassified Asset |
| FAM-014 | Civil Retaining Wall | 1 | 1 | CV-CIVIL | Civil / Building / Road / Drain / Structure |
| FAM-067 | Office / Housing Equipment | 1 | 1 | FC-GENERAL | General Facility / Office / AV Equipment |
| FAM-115 | Welding Transformer / Power Source | 1 | 1 | EL-TRANSFORMER | Transformer |
| FAM-071 | Pollution / Spill Response Equipment | 1 | 1 | SF-FIRE | Fire Fighting / Fire Water / Foam Equipment |
| FAM-001 | Accumulator / BOP Package | 1 | 1 | PK-PACKAGE | Packaged System / Utility Package |
| FAM-063 | Mooring System | 1 | 1 | CV-MARINE | Jetty / Marine / Barge / Mooring |