| Component | Visual and Functional inspection |
| Safety valves | Check response pressure |
| Water level indicators and connecting piping | Inspection of state,Cleaning |
| Water level controllers and transmitters,Connection piping | Check ease of movement,Inspect state of internals,Cleaning |
| Water level limiters and transmitters | Check effectiveness,Inspect state of internals,Cleaning |
| Flow limiters | Check effectiveness,Inspect state |
| Pressure indicators,Connecting pipes | Check water pressure,pressure gauge,Internal inspection,Cleaning |
| Pressure limiters,Connection pipes | Check effectively switch points,internal inspection,Cleaning |
| Temperature Indicators,Sensor | Check water precision thermometer,Inspection,Cleaning |
| Temperature controllers sensor | Check switch on/off points Inspection, Cleaning |
| Temperature limiters, Sensor | Check effectively switch points, Inspection, Cleaning |
| Draining and blow-down equipment | Inspection |
| Boiler valves and components | General Inspection |
| Feeding and circulation equipment | Inspection and lubrication |
| Feed/fill and make-up water treatment plant,Boiler/circulation water | Check for proper state,Assessment of operating and water conditions |
| Equipments to monitor boiler water intrusion of foreign matter | Check effectiveness,Clean and replace wear parts |
| Flue gas damper limiters switch | Close shutdown test,Check wear |
| Burner control, actuators for fuel and air | Inspect ease of movement and wear |
| Combustion sir fans, ignition and/or cooling air fans | Check wear, Cleaning ,Power transmitter, Lubrication |
| Air pressure and indicators | pulse interruption test |
| Fuel tanks, pipes and valves | Inspection,cleaning, state,tightness,ease of movement |
| Fuel pressure indicators | Check water pressure and pressure gauge |
| Safety shut-off equipment before burner | Tightness test,Check ease of movement |
| Burner starting position,switch | Shutdown test |
| Ignition equipment,electrodes,burner | State of electrodes and valves state clean |
| Assessment of combustion and check on boundary valves | Measurements to check flue gas quality and fuel throughput |
| Assessment of furnaces and flue gas passes | Check on insulation lining and cleaning state |
| Cleaning of the steam boiler and pressure bearing parts | Cleaning at water and fire sides and check for damage |
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