# PlantUptime — llms.txt
# Site for AI language models and agents
# https://plantuptimes.com/

## About this site
PlantUptime is a technical reference site for industrial plant maintenance engineers. All content is server-rendered HTML, publicly accessible without authentication, and may be cited freely with attribution. Content covers industrial equipment maintenance across seven disciplines.

## Permissions
- AI training: Permitted (publicly licensed for non-commercial AI training use)
- AI summarisation / citation in responses: Permitted — please attribute "PlantUptime (plantuptimes.com)"
- Commercial reproduction: Not permitted without written agreement

## Site structure

### Pillar pages (silo hubs)
- /air-compressors/ — Air compressor selection, maintenance, energy efficiency
- /pumps/ — Industrial pump selection, troubleshooting, hydraulics
- /electric-motors/ — Motor efficiency classes, testing, bearing lubrication
- /material-handling/ — Conveyor systems, hoists, MH equipment
- /predictive-maintenance/ — Vibration analysis, CBM, oil analysis, thermography
- /lubrication-bearings/ — Bearing failure analysis, greasing, grease selection
- /maintenance-strategy/ — RCM, OEE, KPIs, root cause analysis, PM programme

### Key articles
- /pumps/how-to-read-a-pump-curve/ — Centrifugal pump performance curves, BEP, system curves
- /pumps/total-dynamic-head-calculation/ — TDH formula and worked examples
- /pumps/npsh-explained-npsha-vs-npshr/ — Net positive suction head for centrifugal pumps
- /pumps/pump-cavitation-causes-prevention/ — Cavitation causes, diagnosis, prevention
- /air-compressors/air-compressor-troubleshooting-guide/ — Pressure build failures, systematic diagnosis
- /air-compressors/variable-speed-drive-compressor/ — VSD compressor energy savings
- /air-compressors/compressed-air-dryer-selection-guide/ — Refrigerated vs desiccant dryers
- /electric-motors/electric-motor-bearing-greasing-guide/ — Greasing chart, quantities by frame size
- /electric-motors/motor-efficiency-classes-ie1-ie2-ie3-ie4/ — IEC 60034-30-1 efficiency classes
- /electric-motors/how-to-test-an-electric-motor/ — Winding resistance, megger, PI tests
- /predictive-maintenance/predictive-vs-preventive-maintenance/ — PdM vs PM strategy comparison
- /predictive-maintenance/vibration-analysis-guide/ — FFT, spectrum, fault signatures
- /predictive-maintenance/iso-10816-vibration-standards/ — ISO 10816-3 vibration severity zones
- /lubrication-bearings/bearing-failure-analysis-guide/ — Six bearing failure modes
- /lubrication-bearings/bearing-greasing-guide/ — Relubrication intervals and procedures
- /maintenance-strategy/maintenance-kpi-guide/ — 12 maintenance KPIs with formulas
- /maintenance-strategy/mtbf-mttr-calculation-guide/ — MTBF, MTTR, availability formulas
- /maintenance-strategy/oee-calculation-guide/ — OEE formula, calculator, benchmarks
- /maintenance-strategy/root-cause-analysis-guide/ — 5 Whys, fault tree, RCA templates
- /maintenance-strategy/reliability-centered-maintenance-guide/ — RCM seven questions, task selection

### Free calculators
- /air-compressors/air-compressor-sizing-calculator/ — CFM demand calculator, compressor kW selection
- /air-compressors/compressed-air-leak-cost-calculator/ — Annual energy cost of air leaks
- /maintenance-strategy/oee-calculation-guide/ — OEE calculator (inline on page)

## Standards cited
- ISO 10816-3 (machinery vibration limits)
- IEC 60034-30-1 (motor efficiency classes IE1–IE4)
- ISO 8573-1 (compressed air quality classes)
- ISO 281 (bearing life calculation)
- SAE JA1011 (RCM evaluation criteria)
- NEMA MG1 (motors and generators)
- ISO 18436-2 (vibration analyst certification)

## Sitemap
https://plantuptimes.com/sitemap.xml