"> Coltri Marine Coltri MCH 22 700/30
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Coltri Marine

Coltri MCH 22 700/30

Coltri Marine Coltri MCH 22 700/30 is a starting-air compressor in the supplied category 'Compressors / Starting Air Compressor'. It is normally installed in the engine room close to the starting-air receivers and associated cooling and drain arrangements. It is intended to recharge the vessel's high-pressure starting-air system for main and auxiliary engines. Compared with neighbouring entries in the same series, the supplied data identifies this variant by the source-listed characteristic 30 bar. In service it interfaces with the starting-air receivers, intercoolers or aftercoolers, separators, drains, relief devices, motor or engine drive and automation. Model-specific limits, settings, dimensions and acceptance criteria that are not stated in the supplied data should be taken from the manufacturer documentation.

Components & Design

Component data being added…

Technical Data

compressor type starting_air_compressor
pressure bar 30
capacity nm3h 700
stages 3

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Common failures & inspection points

Leaking suction or discharge valves reduce delivery, noticed as slow receiver pressure recovery and longer compressor running
Worn rings or cylinder surfaces increase blow-by, noticed as reduced capacity, hot running or oil carry-over
Blocked coolers or poor cooling-water flow raises discharge temperature, noticed as high-temperature alarms or hot stages
Automatic drains or separators can block, allowing condensate to accumulate and causing water carry-over into the air system
Lubrication or bearing defects cause overheating and mechanical noise, potentially leading to a protective trip

Service & Maintenance

Check stage temperatures, receiver charging performance, cooling flow, drain operation, relief devices, vibration, lubrication and leakage. Inspect valves, filters, belts or couplings where fitted and verify automatic start/stop logic. Exact pressure settings, clearances and wear limits must be taken from manufacturer documentation.

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Replacement Parts

Keep intake filters, valve service parts, gaskets, O-rings, approved lubricant, drain-valve parts and the model-specific piston-ring or seal kit recommended for the installed compressor.
Equipment Model #80739 · ✓ still in production