3.2 Cooling water system
A reliable and adequate cooling water supply is important for the functioning and life-expectancy of the compressor. The necessary cooling water capacities are specified in Table 6.1, and apply both to seawater and freshwater cooling.
Whether the compressor is connected to a central cooling system or is equipped with a separate cooling water pump, it is important to ensure that cooling water circulation is maintained, and the indication of cooling water pressure by the manometer alone is not sufficient proof of this. It is recommended that the cooling water circulation be shut off when the compressor is not running, to avoid the precipitation of condensation in the crankcase.
Too low temperature of the cooling water entering the compressor may lead to an increase in internal condensation formation, and if this occurs, the temperature of the cooling water should be increased. If it is not possible to increase the temperature, for example by recirculation, condensation formation may be reduced by reducing the amount of cooling water within the limiting values specified in Table 6.2.
A thermometer is mounted in the cooling mantle on the cylinder head to monitor the cooling water temperature.
- 1. Personal safety
- 2. About the compressor
- 2.1 Construction
- 2.2 Safety equipment
- Important: The safety valves, bursting disc and any other safety equipment must be inspected regularly.
- 3. Installation and operation
- 3.1 Installation instructions
- 3.2 Cooling water system
- 3.3 Start-up
- 3.4 Operation
- 3.5 Stopping
- 4. Operational failures
- Important: When inspecting the valves, loosen the clamp bolt on the valve cover before removing the cover.
- Valve overhaul and maintenance
- 5.3 Lubrication system
- 5.4 Bearings
- 5.5 Pistons and piston rings
- 5.7 Coolers
- 5.8 Filters