Control and Valve Installers and Repairers, Except Mechanical Door

Installation, Maintenance, and Repair Occupations
O*NET-SOC code
49-9012.00

Install, repair, and maintain mechanical regulating and controlling devices, such as electric meters, gas regulators, thermostats, safety and flow valves, and other mechanical governors.

  • Data source: BLSPublished: 2026-08

    Moderate· relative

    LowFour relative bandsVery high

    Group-level value

    Scale, basis and source

    Four relative bands (Low / Moderate / High / Very high)

    831 detailed occupations in the BLS Employment Projections table. Assigned per National Employment Matrix (NEM) code, so occupations sharing a NEM code carry the same band

    Source dataset (XLSX download)

  • Data source: AnthropicPublished: 2026-03

    0.000

    0.000Range of values carried here0.745
    Scale, basis and source

    Observed exposure index, 0–1 as published

    Mapped onto O*NET tasks

    Published per SOC 2018 occupation; every O*NET occupation with the same SOC 2018 code carries this value

    Source dataset (CSV download)

  • Data source: ILOPublished: 2025

    0.17

    0.09Range of values carried here0.70

    Group-level value

    Scale, basis and source

    Generative AI exposure index, 0–1 as published

    Published per ISCO-08 unit group. Linked to this occupation, wholly or in part, by applying U.S. Bureau of Labor Statistics crosswalks (ISCO-08 to 2010 SOC, 2010 SOC to 2018 SOC) as published

    Source dataset (PDF download)

What kind of figure this source publishes

The BLS category is a relative rank, not an absolute level, and it is not a first-hand measurement: it groups an occupation's percentile ranks across several published studies into four bands. It is not an employment or wage forecast, not a probability of adoption, and it does not separate automation from augmentation.

Task-level exposure

Exposed tasks only

39 rated tasks · 6 tasks with β ≥ 0.5 (15.4%)

β = direct exposure (E1) + 0.5 × exposure when tools are available (E2), per the source repository's definition.

  • Source unit: O*NET 27.2 tasks → O*NET 31.0 occupation code
  • 7 rated tasks are not in the O*NET 31.0 task list; their scores are kept as published for O*NET 27.2.
Source
OpenAI "GPTs are GPTs" exposure rubric
Release
gh-main-0471612
License
MIT License, Copyright (c) 2024 OpenAI
Task (O*NET 20.1)Claude.aiRaw / share %
Make adjustments to meter components, such as setscrews or timing mechanisms, so that they conform to specifications.

49-9012.00

0.002758.3
Install, inspect and test electric meters, relays, and power sources to detect causes of malfunctions and inaccuracies, using hand tools and testing equipment.

49-9012.00

0.002041.7
Not observed on any surface — 37 task(s) — These tasks have no row in the source for this release. The 0 in the share row is a display-stage composition ratio; absence is what the — in the raw row states.
Turn meters on or off to establish or close service.
—0
Turn valves to allow measured amounts of air or gas to pass through meters at specified flow rates.
—0
Report hazardous field situations and damaged or missing meters.
—0
Record meter readings and installation data on meter cards, work orders, or field service orders, or enter data into hand-held computers.
—0
Connect regulators to test stands, and turn screw adjustments until gauges indicate that inlet and outlet pressures meet specifications.
—0
Disassemble and repair mechanical control devices or valves, such as regulators, thermostats, or hydrants, using power tools, hand tools, and cutting torches.
—0
Record maintenance information, including test results, material usage, and repairs made.
—0
Disconnect or remove defective or unauthorized meters, using hand tools.
—0
Lubricate wearing surfaces of mechanical parts, using oils or other lubricants.
—0
Test valves and regulators for leaks and accurate temperature and pressure settings, using precision testing equipment.
—0
Install regulators and related equipment such as gas meters, odorization units, and gas pressure telemetering equipment.
—0
Shut off service and notify repair crews when major repairs are required, such as the replacement of underground pipes or wiring.
—0
Examine valves or mechanical control device parts for defects, dents, or loose attachments, and mark malfunctioning areas of defective units.
—0
Attach air hoses to meter inlets, plug outlets, and observe gauges for pressure losses to test internal seams for leaks.
—0
Dismantle meters, and replace or adjust defective parts such as cases, shafts, gears, disks, and recording mechanisms, using soldering irons and hand tools.
—0
Advise customers on proper installation of valves or regulators and related equipment.
—0
Connect hoses from provers to meter inlets and outlets, and raise prover bells until prover gauges register zero.
—0
Replace defective parts, such as bellows, range springs, and toggle switches, and reassemble units according to blueprints, using cam presses and hand tools.
—0
Investigate instances of illegal tapping into service lines.
—0
Trace and tag meters or house lines.
—0
Mount and install meters and other electric equipment such as time clocks, transformers, and circuit breakers, using electricians' hand tools.
—0
Vary air pressure flowing into regulators and turn handles to assess functioning of valves and pistons.
—0
Attach pressurized meters to fixtures which submerge them in water, and observe meters for leaks.
—0
Measure tolerances of assembled and salvageable parts for conformance to standards or specifications, using gauges, micrometers, and calipers.
—0
Repair leaks in valve seats or bellows of automotive heater thermostats, using soft solder, flux, and acetylene torches.
—0
Clean internal compartments and moving parts, using rags and cleaning compounds.
—0
Repair electric meters and components, such as transformers and relays, and replace metering devices, dial glasses, and faulty or incorrect wiring, using hand tools.
—0
Recondition displacement type gas meters and governors, fabricating, machining, or modifying parts needed for repairs.
—0
Cut seats to receive new orifices, tap inspection ports, and perform other repairs to salvage usable materials, using hand tools and machine tools.
—0
Reassemble repaired equipment, and solder top, front, and back case panels in place, using soldering guns, power tools, and hand tools.
—0
Calibrate thermostats for specified temperature or pressure settings.
—0
Collect money due on delinquent accounts.
—0
Recommend and write up specifications for changes in hardware, such as house wiring.
—0
Dip valves and regulators in molten lead to prevent leakage, and paint valves, fittings, and other devices, using spray guns.
—0
Splice and connect cables from meters or current transformers to pull boxes or switchboards, using hand tools.
—0
Clean plant growth, scale, paint, soil, or rust from meter housings, using wire brushes, scrapers, buffers, sandblasters, or cleaning compounds.
—0
Clamp regulator units into vises on stages above water tanks, and attach compressed air hoses to intake ports.
—0

Data sources & licenses — O*NET®, Anthropic Economic Index, Eloundou et al. (2023): see full notices on the Credits page

All O*NET 31.0 task statements (32)

All O*NET 31.0 task statements for this occupation (English, as published; task type core or supplemental). Exposure values are not listed here; they are in the table above, next to each task statement as worded in the O*NET version each source used.

Task (O*NET 31.0)Type
Disassemble and repair mechanical control devices or valves, such as regulators, thermostats, or hydrants, using power tools, hand tools, and cutting torches.Core
Record maintenance information, including test results, material usage, and repairs made.Core
Lubricate wearing surfaces of mechanical parts, using oils or other lubricants.Core
Turn meters on or off to establish or close service.Supplemental
Turn valves to allow measured amounts of air or gas to pass through meters at specified flow rates.Supplemental
Report hazardous field situations and damaged or missing meters.Supplemental
Record meter readings and installation data on meter cards, work orders, or field service orders, or enter data into hand-held computers.Supplemental
Connect regulators to test stands, and turn screw adjustments until gauges indicate that inlet and outlet pressures meet specifications.Supplemental
Disconnect or remove defective or unauthorized meters, using hand tools.Supplemental
Test valves and regulators for leaks and accurate temperature and pressure settings, using precision testing equipment.Supplemental
Install regulators and related equipment such as gas meters, odorization units, and gas pressure telemetering equipment.Supplemental
Shut off service and notify repair crews when major repairs are required, such as the replacement of underground pipes or wiring.Supplemental
Examine valves or mechanical control device parts for defects, dents, or loose attachments, and mark malfunctioning areas of defective units.Supplemental
Attach air hoses to meter inlets, plug outlets, and observe gauges for pressure losses to test internal seams for leaks.Supplemental
Dismantle meters, and replace or adjust defective parts such as cases, shafts, gears, disks, and recording mechanisms, using soldering irons and hand tools.Supplemental
Advise customers on proper installation of valves or regulators and related equipment.Supplemental
Connect hoses from provers to meter inlets and outlets, and raise prover bells until prover gauges register zero.Supplemental
Make adjustments to meter components, such as setscrews or timing mechanisms, so that they conform to specifications.Supplemental
Replace defective parts, such as bellows, range springs, and toggle switches, and reassemble units according to blueprints, using cam presses and hand tools.Supplemental
Investigate instances of illegal tapping into service lines.Supplemental
Install, inspect and test electric meters, relays, and power sources to detect causes of malfunctions and inaccuracies, using hand tools and testing equipment.Supplemental
Trace and tag meters or house lines.Supplemental
Mount and install meters and other electric equipment such as time clocks, transformers, and circuit breakers, using electricians' hand tools.Supplemental
Vary air pressure flowing into regulators and turn handles to assess functioning of valves and pistons.Supplemental
Measure tolerances of assembled and salvageable parts for conformance to standards or specifications, using gauges, micrometers, and calipers.Supplemental
Repair leaks in valve seats or bellows of automotive heater thermostats, using soft solder, flux, and acetylene torches.Supplemental
Clean internal compartments and moving parts, using rags and cleaning compounds.Supplemental
Repair electric meters and components, such as transformers and relays, and replace metering devices, dial glasses, and faulty or incorrect wiring, using hand tools.Supplemental
Cut seats to receive new orifices, tap inspection ports, and perform other repairs to salvage usable materials, using hand tools and machine tools.Supplemental
Splice and connect cables from meters or current transformers to pull boxes or switchboards, using hand tools.Supplemental
Clean plant growth, scale, paint, soil, or rust from meter housings, using wire brushes, scrapers, buffers, sandblasters, or cleaning compounds.Supplemental
Calibrate instrumentation, such as meters, gauges, and regulators, for pressure, temperature, flow, and level.Supplemental

Occupation information

Employment outlook (BLS)

Employment, 2025
50K
Projected employment, 2035
53K
Change (2025–35)
+4.3%
Median annual wage, 2025
$74,340
Typical education needed for entry
High school diploma or equivalent
lowest $30,890median wage across 825 detailed occupations, BLS EP 2025–35highest $559,030

Source: U.S. Bureau of Labor Statistics, Employment Projections 2025–35 — Employment by detailed occupation, 2025 and projected 2035

Korea classification links (KSCO)

Links from the current release of the Korea Occupation Direct Crosswalk v1.1, made by AI Changing Work. Relation values are read from the O*NET-SOC occupation side.

KSCO codeKSCO titleRelationStatus
76224전기제어장치 설치 및 정비원Related, not a matchconfirmed
99212가스 점검원Related, not a matchreviewed

Relation and status definitions(kr-direct v1.1)

ILO occupational description

AI Changing Work links the ISCO-08 unit groups below to this occupation by applying the U.S. Bureau of Labor Statistics crosswalks (2018 SOC to 2010 SOC, 2010 SOC to ISCO-08) as published, without case-by-case selection; each link may be whole or partial.

  • ISCO-08 7412Electrical Mechanics and Fitters

The definition, tasks and examples below are the ILO's description of that unit group, not of this occupation.

Electrical mechanics and fitters fit, adjust, install and repair electrical machinery and other electrical apparatus and equipment in buildings, factories, motor vehicles, workshops, or other places.

Tasks

  • (a) fitting, adjusting and repairing various kinds of electrical machinery and motors, generators, switchgear and control apparatus, instruments, or electrical parts of elevators and related equipment;
  • (b) fitting, adjusting and repairing electrical parts in domestic appliances, industrial machines and other appliances;
  • (c) inspecting and testing manufactured electrical products;
  • (d) installing, testing, connecting, commissioning, maintaining and modifying electrical equipment, wiring and control systems;
  • (e) designing, installing, maintaining, servicing and repairing electric and hydraulic passenger and freight lifts, escalators, moving walkways and other lift equipment;
  • (f) connecting electrical systems to power supply;
  • (g) replacing and repairing defective parts.

Example occupations

Armature builder · Automotive electrician · Electrical generator fitter · Electrical mechanic · Lift mechanic

Sources: ILO ISCO-08 — details: Credits

ESCO occupational vocabulary

Each entry below is matched to this occupation in the published ESCO-O*NET Crosswalk (version 1, 2022). The match types are that crosswalk's; the wording is AI Changing Work's.

  • electric meter technicianESCO 7411.1.2This occupation is broader

    Electric meter technicians install and maintain electric meter systems in facilities or buildings. They install the equipment in accordance with regulations and repair faults and other problems. They test the equipment and advise on the use and care.

  • fluid power technicianESCO 7233.4Overlapping, not the same

    Fluid power technicians install and assemble equipment that uses liquid or gas pressure to transmit or regulate power. They also perform tests on and maintain this equipment.

Source: European Commission, DG EMPL — ESCO API 2026-08-08 (bridge v1.2.1)

License: CC BY 4.0 (EU Reuse Notice)

View original

ESCO reuse terms and the modification notice are in Credits.

France classification links (ROME)

AI Changing Work's links between this occupation and ROME 4.0 job profiles, judged with AI models. Relations are read from this occupation's side. Links marked “provisional” were adopted on the judgments of two judges from the same model family (Claude) alone, or by an operator rule applied to their judgments, so they rest on weaker evidence than confirmed links.

ROME codeROME title (French)Relation
F1627Poseur / Poseuse de compteursOverlapping, not the sameprovisional
I1313Hydraulicien industriel / Hydraulicienne industrielleRelated, not a match
I1310Mécanicien / Mécanicienne de maintenance industrielleRelated, not a matchprovisional
I1318Instrumentiste Industriel / IndustrielleRelated, not a matchprovisional

Source: France Travail — Répertoire Opérationnel des Métiers et des Emplois (ROME 4.0), version 61, last updated 15 June 2026 (https://www.data.gouv.fr/datasets/repertoire-operationnel-des-metiers-et-des-emplois-rome). Licence Ouverte 2.0.

ROME codes and titles are reproduced unchanged; the links to O*NET-SOC occupations are AI Changing Work's own judgment and are not a France Travail correspondence.

(AI Changing Work link release: fr-direct v1)

Spain classification links (CNO-11)

AI Changing Work's links between this occupation and CNO-11 occupations, judged with AI models. Relations are read from this occupation's side.

CNO-11 codeCNO-11 title (Spanish)Relation
7403Mecánicos y ajustadores de maquinaria agrícola e industrialRelated, not a match
7521Mecánicos y reparadores de equipos eléctricosRelated, not a match

Source: Instituto Nacional de Estadística (INE), National Classification of Occupations 2011 (CNO-11, Royal Decree 1591/2010) — www.ine.es · Licensed CC BY 4.0. CNO-11 codes and Spanish titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not an INE correspondence.

(AI Changing Work link release: es-direct v1)

Germany classification links (KldB)

AI Changing Work's links between this occupation and KldB occupations, judged with AI models. Relations are read from this occupation's side.

KldB codeKldB title (German)Relation
26122Berufe in der Automatisierungstechnik - fachlich ausgerichtete TätigkeitenRelated, not a match

Source: © Statistik der Bundesagentur für Arbeit — Klassifikation der Berufe 2010 – überarbeitete Fassung 2020, https://statistik.arbeitsagentur.de. KldB codes and titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own mapping (eigene Zuordnung) and are not a Bundesagentur für Arbeit correspondence.

(AI Changing Work link release: de-direct v1)

Japan classification links (JSCO)

AI Changing Work's links between this occupation and JSCO occupations, judged with AI models. Relations are read from this occupation's side.

JSCO codeJSCO title (Japanese)Relation
551はん用・生産用・業務用機械器具整備・修理従事者Related, not a match
552電気機械器具整備・修理従事者Related, not a match
555計量計測機器・光学機械器具整備・修理従事者Related, not a match

Source: Ministry of Internal Affairs and Communications (MIC), Japan Standard Occupational Classification (Dec. 2009, MIC Notification No. 555). JSCO codes and Japanese titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not a MIC correspondence.

(AI Changing Work link release: jp-direct v1)

Sources, licenses and AI Changing Work's modification and translation notices for this page: Credits & sources