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9-8 EANA

Air Compressor · Air Compressors

Technical data from manufacturer or class sources · not yet verified by a person

Tamrotor Marine Compressors (TMC) TMC 9-8 EANA — Marine Instrument/Service Air.

Specifications

Technical data.

Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.

Reference values — not verified
Pressure Rating8 bar
Displacement9 cc/rev

Source: tmc.com; https · not checked against a manufacturer datasheet

Inspection

Inspector Detail

Common issues

  • Air/oil separator element clogging, increasing oil carryover into the air system
  • Oil cooler fouling reducing cooling and raising discharge air temperature
  • Minimum pressure/check valve failure causing oil loss into the system at shutdown
  • Automatic condensate drain blockage or failure to cycle
  • Intake air filter clogging, reducing delivered capacity
  • Thermostatic bypass valve sticking, causing overheating or slow warm-up
  • Unloader/solenoid valve fault causing continuous running or failure to load

Inspection checklist

  • Air/oil separator differential pressure
  • Oil level and condition (colour, contamination)
  • Intake air filter condition
  • Safety/relief valve function test
  • Automatic condensate drain operation
  • Discharge air temperature trend
  • Drive coupling condition
  • Oil cooler cleanliness
  • Control panel alarm and trip test (high temperature, low oil)

Service intervals

Oil changetypically every 2,000-4,000 running hours, or per the specific oil type's maker recommendation
Air/oil separator elementtypically every 4,000-8,000 running hours or on reaching the differential pressure trigger
Intake air filtertypically every 500-1,000 running hours or as indicated by restriction
Condensate drain checkeach watch/daily

Typical wear limits

Lubricating oil conditionrenew on maker's oil analysis trigger, or generally when kinematic viscosity has shifted roughly 10-15% from the new-oil value - confirm against the oil supplier's and maker's limits

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Air/oil separator element
  • Intake air filter element
  • Minimum pressure valve
  • Thermostatic bypass valve
  • Compressor oil (correct maker-specified type)
  • Safety relief valve
  • Unloader/solenoid valve

Safety

  • Stored pressure in the air system - fully vent and isolate before opening any component
  • Hot discharge air and surfaces during and after running
  • Oil mist fire risk if the air/oil separator fails and oil carries into downstream piping
  • Never exceed the rated discharge pressure of the unit or the receiver it feeds

Class survey

As a service/instrument air compressor, survey focus is on safety valve function/certification, alarm and trip testing (high temperature, low oil pressure), and maintenance record review rather than the compressor internals themselves.

Estimated lifetime: Airend/rotor major overhaul is commonly needed in the range of 24,000-40,000 running hours depending on duty and maintenance quality - confirm against TMC's maintenance manual rather than treating this as a fixed figure.

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